国家一般气象站自动站月报表预审经验谈

山西省临汾市有6个县（市）气象局均采用的是天津气象仪器厂生产的DZZ2型自动气象采集设备，该自动气象采集设备地温的采集由温度采集器和通信控制器2部分组成，其传感元件为PT100型温度传感器，可同时将采集到的12路浅层地温及深层地温温度数据通过地温变送器传送到主采集器中。本例故障从地温传感器（PT100铂电阻）的测温工作原理、其阻值以及采集原理，地温变送器的组成及接线方式人手，进行了详细分析。用万用表对传感器阻值进行测量、判断，继而排除故障。

Analysis On Malfunction of Soil Temperature Collecting Instrument In Automatic Weather Station

There were six weather observation stations in Linfen City of Shanxi Province that used DZZ2 automatic collection equipment of meteorological which was produced by Tianjin Meteorological Instrument Factory. It has temperature collected equipment and communication controller 2 parts. The sensing element is the T100 - type temperature sensor. It can collect the 12 layers of shallow and deep soil temperature data and sent them to the main collector. It was discussed in detail what the temperature sensor（PT100 platinum resistance） working prin- ciple, the value of resistance, its collecting principle and the composition and temperature transmitter were in this paper. The malfunction was eliminated by using multimeter to measure resistance of the sensor.