{"id":577,"date":"2026-07-02T08:54:01","date_gmt":"2026-07-02T06:54:01","guid":{"rendered":"https:\/\/knoedler.kreafaktur.com\/?p=577"},"modified":"2026-09-21T15:34:20","modified_gmt":"2026-09-21T13:34:20","slug":"lambdasonden","status":"publish","type":"post","link":"https:\/\/knoedler-technologie.de\/en\/2026\/07\/02\/lambdasonden\/","title":{"rendered":"Lambda sensors"},"content":{"rendered":"<div data-elementor-type=\"wp-post\" data-elementor-id=\"577\" class=\"elementor elementor-577\" data-elementor-post-type=\"post\">\n\t\t\t\t<div class=\"elementor-element elementor-element-1accd2d e-flex e-con-boxed e-con e-parent\" data-id=\"1accd2d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t<div class=\"elementor-element elementor-element-e31b3f8 e-con-full e-flex e-con e-child\" data-id=\"e31b3f8\" data-element_type=\"container\" data-e-type=\"container\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t<div class=\"elementor-element elementor-element-3f40e3f elementor-widget elementor-widget-heading\" data-id=\"3f40e3f\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Knowledge Base: Lambda Sensors<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-32f7fd4 elementor-widget elementor-widget-text-editor\" data-id=\"32f7fd4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Here you will find technical information all about lambda sensors.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7f440f3 elementor-widget elementor-widget-spacer\" data-id=\"7f440f3\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"spacer.default\">\n\t\t\t\t\t\t\t<div class=\"elementor-spacer\">\n\t\t\t<div class=\"elementor-spacer-inner\"><\/div>\n\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-25a24cd e-con-full e-flex e-con e-child\" data-id=\"25a24cd\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-43a1709 elementor-widget elementor-widget-n-accordion\" data-id=\"43a1709\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;default_state&quot;:&quot;all_collapsed&quot;,&quot;max_items_expended&quot;:&quot;one&quot;,&quot;n_accordion_animation_duration&quot;:{&quot;unit&quot;:&quot;ms&quot;,&quot;size&quot;:400,&quot;sizes&quot;:[]}}\" data-widget_type=\"nested-accordion.default\">\n\t\t\t\t\t\t\t<div class=\"e-n-accordion\" aria-label=\"Accordion. Open links with Enter or Space, close with Escape, and navigate with Arrow Keys\">\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7090\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"1\" tabindex=\"0\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7090\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> What Are Oxygen and Lambda Values Used For? <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M34.9 289.5l-22.2-22.2c-9.4-9.4-9.4-24.6 0-33.9L207 39c9.4-9.4 24.6-9.4 33.9 0l194.3 194.3c9.4 9.4 9.4 24.6 0 33.9L413 289.4c-9.5 9.5-25 9.3-34.3-.4L264 168.6V456c0 13.3-10.7 24-24 24h-32c-13.3 0-24-10.7-24-24V168.6L69.2 289.1c-9.3 9.8-24.8 10-34.3.4z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M413.1 222.5l22.2 22.2c9.4 9.4 9.4 24.6 0 33.9L241 473c-9.4 9.4-24.6 9.4-33.9 0L12.7 278.6c-9.4-9.4-9.4-24.6 0-33.9l22.2-22.2c9.5-9.5 25-9.3 34.3.4L184 343.4V56c0-13.3 10.7-24 24-24h32c13.3 0 24 10.7 24 24v287.4l114.8-120.5c9.3-9.8 24.8-10 34.3-.4z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7090\" class=\"elementor-element elementor-element-c663039 e-con-full e-flex e-con e-child\" data-id=\"c663039\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-ffedd9b elementor-widget elementor-widget-heading\" data-id=\"ffedd9b\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Why Do Oxygen and Lambda Values Matter So Much?<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6c282bd elementor-widget elementor-widget-text-editor\" data-id=\"6c282bd\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><strong>Oxygen Value<br \/><\/strong><\/span>A lambda sensor can measure the oxygen content in almost any gas:<\/p><ul><li>Flue and exhaust gases from combustion processes (stationary combustion systems using any type of fuel, engines in CHP plants)<\/li><li>In inert gases such as argon or nitrogen, e.g., for quality control<\/li><li>In steam atmospheres, to determine the water vapor content<\/li><\/ul><p>The lambda sensor is ideally suited for applications in hot gases, as both its measuring principle and its design are tailored specifically for this purpose. The wideband lambda sensor was originally developed for closed-loop control of internal combustion engines.<br \/>However, the sensor is by no means limited to this application. As long as no liquid water can form at the measuring point, the sensor is suitable for all temperatures.<\/p><p><strong><span style=\"text-decoration: underline;\">Lambda Value<\/span><br \/><\/strong>The lambda value is a parameter used primarily in internal combustion engines.<\/p><p>A modern engine with a three-way catalytic converter normally runs at a lambda value of 1, which corresponds to an air-fuel ratio (AFR) of 14.7. This means one part gasoline to 14.7 parts air (by mass: 14.7 grams of air for every 1 gram of fuel). This ratio is essential for the catalytic converter to work properly and to keep harmful emissions (CO, NOx, and unburned hydrocarbons) released into the environment to a minimum.\u00a0<\/p><p>However, the optimal lambda value for maximum power is not 1, but 0.9. An engine runs most efficiently at lambda = 1.1.\u00a0<\/p><p>Internal combustion engines in CHP plants are often operated with excess air in order to achieve the highest possible efficiency.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7091\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"2\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7091\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Construction of the Narrowband Lambda Sensor <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M34.9 289.5l-22.2-22.2c-9.4-9.4-9.4-24.6 0-33.9L207 39c9.4-9.4 24.6-9.4 33.9 0l194.3 194.3c9.4 9.4 9.4 24.6 0 33.9L413 289.4c-9.5 9.5-25 9.3-34.3-.4L264 168.6V456c0 13.3-10.7 24-24 24h-32c-13.3 0-24-10.7-24-24V168.6L69.2 289.1c-9.3 9.8-24.8 10-34.3.4z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M413.1 222.5l22.2 22.2c9.4 9.4 9.4 24.6 0 33.9L241 473c-9.4 9.4-24.6 9.4-33.9 0L12.7 278.6c-9.4-9.4-9.4-24.6 0-33.9l22.2-22.2c9.5-9.5 25-9.3 34.3.4L184 343.4V56c0-13.3 10.7-24 24-24h32c13.3 0 24 10.7 24 24v287.4l114.8-120.5c9.3-9.8 24.8-10 34.3-.4z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7091\" class=\"elementor-element elementor-element-0f9942f e-con-full e-flex e-con e-child\" data-id=\"0f9942f\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-5996ae6 elementor-widget elementor-widget-text-editor\" data-id=\"5996ae6\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p><span style=\"text-decoration: underline;\"><strong>Fundamentals of the Narrowband Lambda Sensor<br \/><\/strong><\/span><\/p><p>Although almost everything here revolves around the wideband lambda sensor, a basic understanding of the narrowband sensor is essential to understanding how the wideband version works.<\/p><p>Narrowband lambda sensors consist of a ceramic sensing element printed with platinum electrodes. Almost all modern narrowband sensors also have a built-in heater that quickly brings the sensor up to its operating temperature of 700\u2013800 \u00b0C.<\/p><p>The ceramic sensing elements come in either a finger-type (thimble) or a planar design:<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-c628b23 elementor--v-position-bottom elementor--h-position-center elementor-arrows-position-inside elementor-widget elementor-widget-slides\" data-id=\"c628b23\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;arrows&quot;,&quot;autoplay_speed&quot;:2500,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;,&quot;transition_speed&quot;:500}\" data-widget_type=\"slides.default\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slider\" dir=\"ltr\" data-animation=\"\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-87ef062 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Planares-Sensorelement\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><div class=\"elementor-slide-description\">Planares Sensorelement<\/div><\/div><\/div><\/div><div class=\"elementor-repeater-item-74d0f80 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Fingerf\u00f6rmiges-Sensorelement\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><div class=\"elementor-slide-description\">Fingerf\u00f6rmiges Sensorelement<\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\" aria-label=\"Previous slide\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\" aria-label=\"Next slide\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9453413 elementor-widget elementor-widget-text-editor\" data-id=\"9453413\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"module-container-custom module-container-root\"><div class=\"text-root text-c321b1b2-9a06-4bc1-9a6c-ccdd7c300060\"><div><p>The first lambda sensors were almost exclusively of the finger type. The sensing element is hollow, allowing a heating element to be inserted inside it.<\/p><p>The advantage of the planar sensing element is its heater embedded directly in the ceramic, combined with a lower thermal mass. This allows the sensor to reach its operating temperature more quickly.<\/p><\/div><\/div><\/div><div class=\"module-container-custom module-container-root\"><div class=\"text-root text-540b43d9-20e6-4c80-9ba9-fe205234dcdf\"><div><p>Narrowband lambda sensors output a voltage known as the Nernst voltage. This voltage depends on the difference in oxygen partial pressure between the reference gas (ambient air or oxygen) and the sample gas (exhaust gas).<\/p><p>This voltage is measured between the outer platinum electrode (exposed to the sample gas) and the inner electrode (exposed to the reference gas, i.e., air or oxygen):<\/p><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<img fetchpriority=\"high\" decoding=\"async\" class=\"e-image-base e-default-img\" data-interaction-id=\"352a004\" data-e-type=\"widget\" data-id=\"352a004\" id=\"582\" src=\"https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Grundlagen_01.png\" width=\"944\" height=\"601\" srcset=\"https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Grundlagen_01.png 944w, https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Grundlagen_01-300x191.png 300w, https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Grundlagen_01-768x489.png 768w\" alt=\"\"\/>\t\t\t\t<div class=\"elementor-element elementor-element-ca725c9 elementor-widget elementor-widget-text-editor\" data-id=\"ca725c9\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"module-container-custom module-container-root\"><div class=\"text-root text-c321b1b2-9a06-4bc1-9a6c-ccdd7c300060\"><p>The characteristic curve of narrowband lambda sensors is very steep at the transition from excess oxygen (oxidizing atmosphere at the outer electrode) to oxygen deficiency (reducing atmosphere at the outer electrode): the voltage rises abruptly in a sharp step. This step-shaped curve is why these sensors are also known as switching-type lambda sensors.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t<img decoding=\"async\" class=\"e-image-base e-default-img\" data-interaction-id=\"2cd66cd\" data-e-type=\"widget\" data-id=\"2cd66cd\" id=\"581\" src=\"https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Kennlinie_Sprungsonde.jpg\" width=\"928\" height=\"588\" srcset=\"https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Kennlinie_Sprungsonde.jpg 928w, https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Kennlinie_Sprungsonde-300x190.jpg 300w, https:\/\/knoedler-technologie.de\/wp-content\/uploads\/2026\/07\/Kennlinie_Sprungsonde-768x487.jpg 768w\" alt=\"\"\/>\t\t\t\t<div class=\"elementor-element elementor-element-a471628 elementor-widget elementor-widget-text-editor\" data-id=\"a471628\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"module-container-custom module-container-root\"><div class=\"text-root text-c321b1b2-9a06-4bc1-9a6c-ccdd7c300060\"><div class=\"module-container-custom module-container-root\"><div class=\"text-root text-7c9428fc-3b40-46ab-986c-a0530c6d3c50\"><div><p>Outside the region around \u03bb = 1, the characteristic curve has only a very slight slope. This slope is greater in the \u03bb  1 range.<\/p><p>In general, the characteristic curve is strongly influenced by the temperature of the sensing element. In the \u03bb &lt; 1 range, the chemical composition of the sample gas also has a significant effect.<\/p><p>At 2% oxygen, the sensor's output voltage is only about 30\u201350 mV; at 21% oxygen, it is approximately \u221210 mV.<\/p><\/div><\/div><\/div><div class=\"module-container-custom module-container-root\"><div class=\"text-root text-5485cd82-4add-4877-ac5c-67a827eb63b3\"><div><p>To improve accuracy, the latest narrowband lambda sensors use two techniques borrowed from wideband sensor technology:<\/p><ul><li>Measuring the internal resistance to determine the temperature of the sensing element<\/li><li>Using a pumped reference to reduce environmental influences<\/li><\/ul><\/div><\/div><\/div><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7092\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"3\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7092\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Construction of the Wideband Lambda Sensor <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M34.9 289.5l-22.2-22.2c-9.4-9.4-9.4-24.6 0-33.9L207 39c9.4-9.4 24.6-9.4 33.9 0l194.3 194.3c9.4 9.4 9.4 24.6 0 33.9L413 289.4c-9.5 9.5-25 9.3-34.3-.4L264 168.6V456c0 13.3-10.7 24-24 24h-32c-13.3 0-24-10.7-24-24V168.6L69.2 289.1c-9.3 9.8-24.8 10-34.3.4z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M413.1 222.5l22.2 22.2c9.4 9.4 9.4 24.6 0 33.9L241 473c-9.4 9.4-24.6 9.4-33.9 0L12.7 278.6c-9.4-9.4-9.4-24.6 0-33.9l22.2-22.2c9.5-9.5 25-9.3 34.3.4L184 343.4V56c0-13.3 10.7-24 24-24h32c13.3 0 24 10.7 24 24v287.4l114.8-120.5c9.3-9.8 24.8-10 34.3-.4z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7092\" class=\"elementor-element elementor-element-4d41d1c e-con-full e-flex e-con e-child\" data-id=\"4d41d1c\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-affd1d4 elementor-widget elementor-widget-heading\" data-id=\"affd1d4\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Fundamentals of the Wideband Lambda Sensor<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0e63ebf elementor-widget elementor-widget-text-editor\" data-id=\"0e63ebf\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The wideband lambda sensor has a lot in common with the narrowband lambda sensor:<\/p><ul><li>Externally, the housing looks very similar<\/li><li>The material (the ceramic used) is the same, and the operating principle is at least partially identical<\/li><li>Both sensor types are usually heated, with the temperature controlled via the internal resistance<\/li><\/ul><p><br \/>Unlike the narrowband sensor, however, the wideband sensor uses two \u201ccells\u201d: the pump cell and the Nernst cell.<\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7093\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"4\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7093\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Choosing the Right Sensor Type: Key Differences <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M34.9 289.5l-22.2-22.2c-9.4-9.4-9.4-24.6 0-33.9L207 39c9.4-9.4 24.6-9.4 33.9 0l194.3 194.3c9.4 9.4 9.4 24.6 0 33.9L413 289.4c-9.5 9.5-25 9.3-34.3-.4L264 168.6V456c0 13.3-10.7 24-24 24h-32c-13.3 0-24-10.7-24-24V168.6L69.2 289.1c-9.3 9.8-24.8 10-34.3.4z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M413.1 222.5l22.2 22.2c9.4 9.4 9.4 24.6 0 33.9L241 473c-9.4 9.4-24.6 9.4-33.9 0L12.7 278.6c-9.4-9.4-9.4-24.6 0-33.9l22.2-22.2c9.5-9.5 25-9.3 34.3.4L184 343.4V56c0-13.3 10.7-24 24-24h32c13.3 0 24 10.7 24 24v287.4l114.8-120.5c9.3-9.8 24.8-10 34.3-.4z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7093\" class=\"elementor-element elementor-element-f6667d1 e-con-full e-flex e-con e-child\" data-id=\"f6667d1\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-c4e82da elementor-widget elementor-widget-heading\" data-id=\"c4e82da\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sensor Types and How They Differ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-ab6a153 elementor-widget elementor-widget-text-editor\" data-id=\"ab6a153\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>Lambda sensors are available from various manufacturers in a wide range of versions. The largest manufacturers are Bosch, Niterra (NTK\/NGK), and Denso.<\/p><p>Here, we focus on the different sensor types offered by Bosch:<\/p><ul><li>Bosch LSU 4.2<\/li><li>Bosch LSU 4.9<\/li><li>Bosch LSU 5.1<\/li><li>Bosch LSU 5.2<\/li><li>Bosch LSU 6<\/li><\/ul>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t\t<details id=\"e-n-accordion-item-7094\" class=\"e-n-accordion-item\" >\n\t\t\t\t<summary class=\"e-n-accordion-item-title\" data-accordion-index=\"5\" tabindex=\"-1\" aria-expanded=\"false\" aria-controls=\"e-n-accordion-item-7094\" >\n\t\t\t\t\t<span class='e-n-accordion-item-title-header'><div class=\"e-n-accordion-item-title-text\"> Bosch LSM 11 Alternatives and Replacements <\/div><\/span>\n\t\t\t\t\t\t\t<span class='e-n-accordion-item-title-icon'>\n\t\t\t<span class='e-opened' ><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-up\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M34.9 289.5l-22.2-22.2c-9.4-9.4-9.4-24.6 0-33.9L207 39c9.4-9.4 24.6-9.4 33.9 0l194.3 194.3c9.4 9.4 9.4 24.6 0 33.9L413 289.4c-9.5 9.5-25 9.3-34.3-.4L264 168.6V456c0 13.3-10.7 24-24 24h-32c-13.3 0-24-10.7-24-24V168.6L69.2 289.1c-9.3 9.8-24.8 10-34.3.4z\"><\/path><\/svg><\/span>\n\t\t\t<span class='e-closed'><svg aria-hidden=\"true\" class=\"e-font-icon-svg e-fas-arrow-down\" viewbox=\"0 0 448 512\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M413.1 222.5l22.2 22.2c9.4 9.4 9.4 24.6 0 33.9L241 473c-9.4 9.4-24.6 9.4-33.9 0L12.7 278.6c-9.4-9.4-9.4-24.6 0-33.9l22.2-22.2c9.5-9.5 25-9.3 34.3.4L184 343.4V56c0-13.3 10.7-24 24-24h32c13.3 0 24 10.7 24 24v287.4l114.8-120.5c9.3-9.8 24.8-10 34.3-.4z\"><\/path><\/svg><\/span>\n\t\t<\/span>\n\n\t\t\t\t\t\t<\/summary>\n\t\t\t\t<div role=\"region\" aria-labelledby=\"e-n-accordion-item-7094\" class=\"elementor-element elementor-element-c45052d e-con-full e-flex e-con e-child\" data-id=\"c45052d\" data-element_type=\"container\" data-e-type=\"container\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2d00345 elementor-widget elementor-widget-heading\" data-id=\"2d00345\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t\t<h2 class=\"elementor-heading-title elementor-size-default\">Sensor Types and How They Differ<\/h2>\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-47cc191 elementor-widget elementor-widget-text-editor\" data-id=\"47cc191\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<p>The Bosch LSM 11 is technically a narrowband lambda sensor. However, it was designed to also deliver a linear output signal in oxygen-rich gases.<\/p><p>As with all narrowband sensors, however, the output signal has only a very small voltage swing, ranging from approximately \u221210 mV in ambient air to 40 mV at 2% oxygen.<br \/>In addition, this signal is highly dependent on temperature and sensor aging.<\/p><p>The Bosch LSM 11 was discontinued in 2022 and is no longer in production. Remaining stock is virtually exhausted.<br \/>To keep older controllers in operation, two alternative sensors have emerged as the preferred options:<\/p><ul><li>Niterra (NGK\/NTK) OZA685<\/li><li>Bosch LSF 4.2<\/li><\/ul><p>Both sensors differ from the Bosch LSM 11 in some respects, but are compatible in most cases.<\/p><p>For details, please refer to our technical report: <a href=\"https:\/\/knoedler-technologie.de\/wp-content\/uploads\/go-x\/u\/a168c082-4511-4449-80a4-95c9a720ea0d\/2021-01-31-Untersuchung-Ersatzsonden-fuer-LSM11_1.pdf\" download=\"2021-01-31-Untersuchung-Ersatzsonden-fuer-LSM11_1.pdf\" data-link-type=\"document\">Link<\/a><\/p>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-aada689 elementor--v-position-bottom elementor--h-position-center elementor-arrows-position-inside elementor-widget elementor-widget-slides\" data-id=\"aada689\" data-element_type=\"widget\" data-e-type=\"widget\" data-settings=\"{&quot;navigation&quot;:&quot;arrows&quot;,&quot;autoplay_speed&quot;:2500,&quot;autoplay&quot;:&quot;yes&quot;,&quot;pause_on_hover&quot;:&quot;yes&quot;,&quot;pause_on_interaction&quot;:&quot;yes&quot;,&quot;infinite&quot;:&quot;yes&quot;,&quot;transition&quot;:&quot;slide&quot;,&quot;transition_speed&quot;:500}\" data-widget_type=\"slides.default\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-slides-wrapper elementor-main-swiper swiper\" role=\"region\" aria-roledescription=\"carousel\" aria-label=\"Slider\" dir=\"ltr\" data-animation=\"\">\n\t\t\t\t<div class=\"swiper-wrapper elementor-slides\">\n\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-repeater-item-87ef062 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Planares-Sensorelement\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><div class=\"elementor-slide-description\">Bosch LSF 4.2 ohne Schutzrohr mit sichtbarer Platinbeschichtung<\/div><\/div><\/div><\/div><div class=\"elementor-repeater-item-74d0f80 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"Fingerf\u00f6rmiges-Sensorelement\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><div class=\"elementor-slide-description\">Bosch LSF 4.2 ohne Schutzrohr, planares Sensorelement<\/div><\/div><\/div><\/div><div class=\"elementor-repeater-item-16d7453 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"NGK-OZA685\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><div class=\"elementor-slide-description\">NGK OZA685 ohne Schutzrohr, Fingerf\u00f6rmiges Sensorelement<\/div><\/div><\/div><\/div><div class=\"elementor-repeater-item-e5694e0 swiper-slide\" role=\"group\" aria-roledescription=\"slide\"><div class=\"swiper-slide-bg\" role=\"img\" aria-label=\"NGK-OZA685-ohne-Schutzrohr\"><\/div><div class=\"swiper-slide-inner\" ><div class=\"swiper-slide-contents\"><div class=\"elementor-slide-description\">NGK OZA685, ohne Schutzrohr<\/div><\/div><\/div><\/div>\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-prev\" role=\"button\" tabindex=\"0\" aria-label=\"Previous slide\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-left\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M646 125C629 125 613 133 604 142L308 442C296 454 292 471 292 487 292 504 296 521 308 533L604 854C617 867 629 875 646 875 663 875 679 871 692 858 704 846 713 829 713 812 713 796 708 779 692 767L438 487 692 225C700 217 708 204 708 187 708 171 704 154 692 142 675 129 663 125 646 125Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<div class=\"elementor-swiper-button elementor-swiper-button-next\" role=\"button\" tabindex=\"0\" aria-label=\"Next slide\">\n\t\t\t\t\t\t\t<svg aria-hidden=\"true\" class=\"e-font-icon-svg e-eicon-chevron-right\" viewbox=\"0 0 1000 1000\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\"><path d=\"M696 533C708 521 713 504 713 487 713 471 708 454 696 446L400 146C388 133 375 125 354 125 338 125 325 129 313 142 300 154 292 171 292 187 292 204 296 221 308 233L563 492 304 771C292 783 288 800 288 817 288 833 296 850 308 863 321 871 338 875 354 875 371 875 388 867 400 854L696 533Z\"><\/path><\/svg>\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-a35bde8 elementor-widget elementor-widget-text-editor\" data-id=\"a35bde8\" data-element_type=\"widget\" data-e-type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t\t\t\t\t\t<div class=\"module-container-custom module-container-root\"><div class=\"text-root text-c321b1b2-9a06-4bc1-9a6c-ccdd7c300060\"><p>The Bosch LSF 4.2 uses a planar sensing element, while the Niterra (NGK\/NTK) OZA 685 features a finger-type element.<\/p><p>The original LSM 11 sensor had a finger-type sensing element.<\/p><\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/details>\n\t\t\t\t\t<\/div>\n\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>","protected":false},"excerpt":{"rendered":"<p>Wissen: Lambdasonden Hier finden Sie technische Informationen rund um die Lambdasonde. Wozu braucht man einen Sauerstoff- und Lambdawert? Warum ist der Sauerstoff- bzw. Lambdawert \u00fcberhaupt so wichtig? SauerstoffwertDen Sauerstoffgehalt kann man mit der Lambdasonde in fast allen beliebigen Gasen messen: Abgase von Verbrennungsvorg\u00e4ngen (station\u00e4re Feuerungen beliebiger Brennstoffe, Motoren aus BHKWs) In Schutzgasen wie z.B. Argon [&hellip;]<\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[1],"tags":[],"class_list":["post-577","post","type-post","status-publish","format-standard","hentry","category-allgemein"],"_links":{"self":[{"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/posts\/577","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/comments?post=577"}],"version-history":[{"count":70,"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/posts\/577\/revisions"}],"predecessor-version":[{"id":1243,"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/posts\/577\/revisions\/1243"}],"wp:attachment":[{"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/media?parent=577"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/categories?post=577"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/knoedler-technologie.de\/en\/wp-json\/wp\/v2\/tags?post=577"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}