Auto Oxygen Sensor
In order to obtain the correct air-fuel ratio, the engine management system usually adopts the technology of closed-loop fuel control. The oxygen sensor is an important part of the closed-loop control, which monitors the residual oxygen content in the exhaust gas and feeds it back to the ECU. The ECU can use the algorithm to sense whether the current air-fuel ratio deviates from the theoretical air-fuel ratio, adjust the fuel injection amount, and finally obtain the correct air-fuel ratio.
Core component: sensing element (zirconium element)
It is basically a stable zirconia ceramic coated with a multi-layered platinum layer inside and outside. The platinum layer has a catalytic effect to form an inner and outer catalytic layer on the inner and outer surfaces of the zirconium element. Under the catalytic action of the inner and outer porous platinum, oxygen molecules and oxygen ions will Mutual conversion, when oxygen ions migrate from the higher concentration side, a voltage is generated between the inner and outer electrodes.
1. Protection 2. Zirconium oxide body 3. Housing 4. Output connector 5. Jacket 6. Guide
Line 7. Electromotive force 8. Platinum electrode on the atmospheric side 9. Solid electrolyte (iron oxide element) 10. Platinum electrode on the exhaust side 11. Coating (ceramic) 12. Exhaust 13. Atmosphere
The product quality
Zirconia powder:Import raw materials to ensure basic strength and purity
Platinum paste:Imported porous platinum material to ensure stable product quality
Protective layer:A porous ceramic protective layer is firmly adhered to the electrode layer to enhance its anti-pollution ability
Heater:24V high pressure test, thermal shock extreme test, 10,000 alternating test
Shield:Special stainless steel material with strong corrosion resistance and high temperature resistance
The core components (zirconium components) are all tested with 10MPa high pressure to ensure quality reliability.
On-line inspection of product hermeticity, leakage rate <0.21ml/min to ensure product quality stability
Comprehensive testing of product electrical performance parameters to ensure consistent work
High temperature testing performance
Passed the shelf reliability test and durability test, the product quality is qualified
Product iron head display
Xiao Chang Kansen Trading Co., Ltd.
Tel:+86 712 4762278 Fax:+86 712 4762278
Add:5th Floor, Econmy Business Bureau Building, Zhanqian Yiroad, Xiaochang, Xiaogan, Hubei, China