介紹渦流傳感器在線測量鋼板厚度的基本原理，分析測量過程中溫度漂移產生的主要
原因，建立檢測線圈的數學模型，提出采用雙路差動綜合補償方式進行溫度補償的實施方案，實際測試結果表明補償準確度達到要求。
關鍵詞：渦流；厚度測量；溫度漂移；綜合補償；差動
Temperature compensation of steel plate thickness measuring eddy current sensor LI Juan QU Yunqing LIU Huanping? （Department of machinery and Electronics,Shijiazhuang Vocational Technology Institute，Shijiazhuang 050081 China） Abstract: The basic principle of steel plate thickness measuring method based on eddy current is introduced.Depending on the analyse on primary factor of temperature shift,mathematical model of detecting winding is set up,a double differential action compositive compensation scheme is given. Compensation require is achieved indicating by experiment result.
Keywords: eddy current; thickness measuring; temperature drift; compositive compensation；differential action