A thin wafer of semiconductor material used for measuring ac power and magnetic fieldstrength. Its output voltage is proportional to the current passing through it times the magnetic field perpendicular to it.
英
美
- 用來(lái)測量交流功率和磁場(chǎng)強度的一種半導體材料薄片（亦稱(chēng)大圓片），其輸出電壓與通過(guò)它的電流及與其垂直的磁場(chǎng)強度的乘積成正比。
