photocell
柯林斯词典
1. N a device in which the photoelectric or photovoltaic effect or photoconductivity is used to produce a current or voltage when exposed to light or other electromagnetic radiation. They are used in exposure meters, burglar alarms, etc 光電池 (Also called photoelectric cell, electric eye)
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photocell /ˈfəʊtəʊˌsɛl/
剑桥词典
- an electrical device that produces a current or a voltage when light shines on it
光電琯，電眼
Photocells are used in burglar alarms . 光電琯被應用於防盜警報器中。 返回 photocell