sensor
/ˈsensə(r)/ (bre, ipa) · /ˈsensər/ (ame, ipa) · /ˈsen-ˌsȯr ˈsen(t)-sər/ (ame, mw)
sensor — noun
- sensorsingular
- sensorsplural
1. an electronic component that detects physical conditions such as light, heat, mo
an electronic component that detects physical conditions such as light, heat, motion, or pressure, and produces a signal or triggers an action in response.
A motion sensor in the hallway turns on the lights when Selim walks past.
collocation: motion sensor
Meera placed a temperature sensor in the living room to monitor heat from the fireplace.
collocation: temperature sensor
The factory uses pressure sensors to check whether the pipes are working correctly.
A sensor at the back of Lan's car beeps when another vehicle gets too close.
Niran wears a heart-rate sensor on his wrist during his morning run.
- detector
Broader in scope; often used for specific substances (smoke detector, metal detector) rather than physical conditions.
- gauge
Measures the magnitude or level of a specific property (fuel gauge, pressure gauge) rather than detecting presence or change.
- probe
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.