WB 系列霍爾電流傳感器/ 變送器具有線性好、頻帶寬、響應快、過載能力強等優點。其結構由原邊電路、聚磁環、霍爾器件、次級線圈和放大電路等組成， 分直測式和磁補償式兩種工作方式。直測式是將霍爾器件置于具有線圈繞組或直穿母線的環型鐵磁體氣隙中， 測出氣隙里的磁壓降， 即為被測電流。磁補償式與直測式的區別在于其鐵磁體上另加一平衡繞組， 霍爾器件僅檢測被測電流和平衡繞組中電流在鐵磁體中所產生的磁電勢的平衡狀態。
關 鍵 詞 ： 霍爾傳感器； 霍爾變送器； 工作原理
Abstract: WB series Hall current sensor/ transducer possesses a lot of advantages as well as better linear, wider frequency band, faster response, and bigger over loading. The sensor is made up of original circuit, magnetic core, Hall part, secondary coil and magnifier. There are two work modes: direct measure mode and closed-loop mode. The direct measure mode is that Hall part is set into the interspace of loop winding or magnet coil, then the magnetism voltage difference or the current is measured. The difference of the two modes is adding the secondary coil at the magnet of the closed-loop sensor. The Hall part measure the magnetism voltage difference state of the measured current and the secondary current.
Key Words: Hall sensor; Hall transducer; Working principium