Nitrogen-oxygen sensor calibration and detection equipment

Abstract

The invention discloses nitrogen-oxygen sensor calibration detection equipment which comprises a main machine, the main machine is provided with an exhaust module used for exhausting tail gas and a detection module used for receiving a probe detection signal and displaying a nitrogen oxide content value, and the exhaust module is electrically connected with the detection module. The equipment has the effect of detecting the sensing performance of the probe.

Description

technical field [0001] The present application relates to the technical field of nitrogen and oxygen sensors, in particular to a calibration and detection device for nitrogen and oxygen sensors. Background technique [0002] Nitrogen oxides are one of the main factors that form photochemical smog and acid rain, which will pollute the environment and seriously endanger human health. The main source of nitrogen oxides in the urban atmosphere is fuel combustion, such as vehicle exhaust emissions, so nitrogen and oxygen sensors are often used to detect the nitrogen oxide content in vehicle exhaust. [0003] related technologies, such as figure 1 As shown, a nitrogen and oxygen sensor is disclosed, which includes a cable 1, a probe 2 connected to one end of the cable 1, a connector 3 connected to the other end of the cable 1, and a control circuit board 4 connected to the connector 3. The control circuit board 4 A socket that is plugged and matched with the plug 3 is provided o...

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Problems solved by technology

[0004] However, since the probe of the nitrogen oxygen sensor includes sensitive sensing elements, it is easy to affect its sensing performance after contact with dust, liquid, dirt, etc., resulting in the failure of the sensing function of the probe. Therefore, there is an urgent need for a detection device on the market to detect Sensitive performance of the probe

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