This paper included two parts : one is to generate the calibration process of watermark sensor ; the other is to use the sensor to measure soil moisture tension in field test 摘要本文主要可以分成兩部份,一為土壤水分張力感應(yīng)器之率定,主要是要了解土壤水分張力感應(yīng)器之訊號處理程序,并以統(tǒng)計(jì)方法回歸土壤水分張力值與土壤水分張力感應(yīng)器之電壓值的關(guān)系。