Aiming at problem of low efficiency of traditional gas sensor measurement system

a resistive type semiconductor gas sensor measurement system integrates data acquisition

analysis

display and storage is designed. This system includes three parts: host computer

hardware circuit and component experiment box. The host computer is written by LabVIEW software

and it has the function of displaying the parameters and response characteristic curve of the gas sensor. In the aspect of hardware circuit

automatic switch circuit of matching resistor is designed to adapt to the larger resistance range of the gas sensor

and the related sensors are used to monitor the working environment of the gas sensor in real time.The experimental box is made of transparent organic glass

and also has an exhaust device and an air injection device

so that the measurement is simple and convenient. The system test results show that the system can complete the gas sensor measurement

real-time temperature monitoring

data acquisition and report generation

and realize high-efficient test of gas sensitive component.