Research and application of integrated cabling technology for soil temperature sensor
There are some problems with soil temperature sensors of national automatic weather station during on-site replacement,maintenance,and laboratory calibration,such as mismatched wiring ports,complex wiring,and difficulty in threading.The paper explores a method of integrated cabing to solve these problems.On the basis of studying the layout of sensor wiring,the method is proposed and analysed that it crops the sensor cables to the uniform length and connects it to the collector through an adapter box.Firstly,5 sensors with aviation plug and 5 sensors without aviation plug are selected randomly.Then,these sersors are divided into three groups with original state,cropping off 5 meters and cropping to uniform length,and calibrate these sensors in laboratory.Finally,this paper analyses data deviation and standard uncertainty of these three sets data.The results show that the varying of data deviation is not exceed±0.05 ℃ after cropping,and the varying of standard uncertainty is not exceed 0.02 ℃.Therefore,the experiment can prove that the property of senor will not vary through improving wiring mode whether it has an aviation plug or the length of cropping.
soil temperature sensorintegrated cablingdeviationstandard uncertainty
NETL
NSTL
万方数据
