1. an electronic component that detects physical conditions such as light, heat, mo
1.名詞B1
釋義
感測器
偵測光、熱、壓力等物理變化的裝置
an electronic component that detects physical conditions such as light, heat, motion, or pressure, and produces a signal or triggers an action in response.
例句
A motion sensor in the hallway turns on the lights when Selim walks past.
當有人走過時，Selim 家走廊的感測器就會把燈打開。
collocation: motion sensor
Meera placed a temperature sensor in the living room to monitor heat from the fireplace.
Meera 在客廳放了一個溫度感測器，用來監測壁爐的熱度。
collocation: temperature sensor
The factory uses pressure sensors to check whether the pipes are working correctly.
這間工廠用壓力感測器來檢查管線是否正常運作。
collocation: pressure sensor
A sensor at the back of Lan's car beeps when another vehicle gets too close.
Lan 的車後方有一個感測器，當有其他車輛太靠近時就會發出嗶嗶聲。
collocation: proximity-sensor context
Niran wears a heart-rate sensor on his wrist during his morning run.
A sensor that is inserted directly into a system or substance to collect data; implies close contact.
文法句型
sensor + for + [what is detected]
sensor + that + [detection clause]
[noun] + sensor (compound noun)
用法筆記
The noun specifying what the sensor detects usually comes directly before the word 'sensor' in a compound structure, e.g. motion sensor, light sensor, pressure sensor, or smoke sensor.
常見錯誤
The sensor is too sensible.
The sensor is too sensitive.
'sensible' means 'practical or reasonable'; 'sensitive' means 'able to detect very small changes.'