GrabCAD 模型信息
CO _ NOx Sensor · 模型 166520
This CO _ NOx Sensor could be placed downstream a car filter to prevent a driver sickness. It get a high of 20 mm for a diameter of 7mm. A Carbon filter prevents a premature wear of the sensible part (wetness, dusts) and ensures a gaz particle separation for a better selectivity. The sensible part (that is electricaly wired) is around 800µm high for a 6mm diameter. Take a look on the scheme for a detailled view. ---------------------------------------------------------------------------------------------------------------------------------------------- From Down to up: - (Black) Wafer monocristal silicium (500µm) - (Green) Dielectric membrane phosphorus oxynitride (3µm) - (Red) Heat body polycristal silicium phosphorus doped (100 nm high, 300µm diameter) - (Purple) Isolation coating silicium oxide (negligible high) - (Blue) Circuits in platinum, chromium and titanium alloy (negligible high) - (Green) Passivation coating (oxide protection) - (Red sqared) Sensible layer in Tin Oxide (SnO2) (100 nm high, 300 µm long) The sensible layer is heated at around 400-600°C by the heat body to alloys the oxidoreduction (SnO2 + CO = SnO + CO2) that will change the electrical conductivity that is measurable in the sensible layer. Every single sensor need a callibration test.
- 格式
- CATIA、Rendering、Other
- 分类
- Electrical、Furniture、Industrial design
- 标签
- sensor、nox、co
- 数据更新
- 2026-10-08T04:07:10Z
