The Testing System Of Gas-Sensor

With the human progress and life development, people pay more attention to circumstance around them and their awareness of environmental protection and safety gets stronger. Acid rain, greenhouse effect, ozonosphere broken and environmental pollution, etc, do harm to Man constantly, and so gas-sensors' research and development is very active. As against, the ineffective measurement limited the more improvement of productive to some degree.So, it is essential to research and develop a practical, more efficient and intelligent testing system. In the 1980's, as the result of applying computer to the field of instrumentation, virtual instrument come into being. The key part in the virtual instrument is software rather than hardware; thus the virtual instrument possesses high flexibility. It is certain that virtual instrument will gradually replace traditional instrument and eventually becomes the main trend in the field of measurement in the future.This paper discusses the research and development of information acquisition system of gas-sensor. The testing system consists of four parts: operational environment simulation of gas-sensors, signal regulation, information sampling and information analysis and management. The following is the meaning of the testing system research:(1)Realize the testing of sensor parameters, resolve problems of rapid measurement and give a set of 50 channels testing system.(2)Realize the virtualization of testing instrument. Users can easily finish the multi-parameters testing on virtual panel.(3)Realize the separation of information sampling and analysis.The system can give whole testing information of gas-sensors and resolve practical problems.