Design of humidity sensor automatic acquisition system based on virtual instrument
the data acquisition system of HMP155 humidity sensor(hereinafter referred to as humidity sensor)is designed by using virtual instrument technology and LabVIEW program development environment.The system includes two parts:sensor hard-ware connection and software design.It mainly realizes data acquisition,draws data curve,humidity threshold alarm and imports the collected data into SQL database.The system can solve the problem of reading the tested data in the process of metrological verification and calibration of humidity sensor.