detector
/dɪˈtektə(r)/ (bre, ipa) · /dɪˈtektər/ (ame, ipa) · /di-ˈtek-tər/ (ame, mw)
detector — 名詞
- detectorsingular
- detectorsplural
1. An object built to locate or reveal something that would otherwise remain hidden
偵測器
用於發現或測量特定物質的裝置
An object built to locate or reveal something that would otherwise remain hidden — including smoke, metal, movement, or dishonest answers
The smoke detector went off when the toast burned in the kitchen.
吐司在廚房烤焦時，煙霧偵測器響了起來。
collocation: smoke detector
Airport security asked Esteban to empty his pockets before walking through the metal detector.
機場安檢人員請 Esteban 清空口袋後再走過金屬探測器。
collocation: metal detector
A motion detector near the back door turns on the lights when someone passes by.
後門附近裝了一個動作感應器，有人經過時會亮燈。
The lie detector test showed that the suspect was telling the truth about the money.
測謊器測試結果顯示，那名嫌犯對於那筆錢說的是實話。
Min bought a carbon monoxide detector for the basement after the old furnace was repaired.
Min 在老舊鍋爐修好之後，為地下室買了一個一氧化碳偵測器。
- sensor
A sensor detects physical input (heat, light, pressure) but does not always signal an alarm or identify a specific substance.
- alarm
Alarm focuses on the warning function; a detector may or may not include an audible alert.
- scanner
A scanner actively sweeps an area; a detector can be stationary and passive.
用法筆記
Commonly combined with the name of the substance being detected, as in smoke detector, metal detector, or lie detector.
常見錯誤
2. A specialized electronic device that picks up radio waves, electromagnetic field
探測器
偵測無線電波或放射線的電子設備
A specialized electronic device that picks up radio waves, electromagnetic fields, or radioactive particles, typically used in scientific or technical work
The lab technician used a radiation detector to check for leaks near the storage room.
實驗室技術員用輻射探測器檢查儲藏室附近是否有洩漏。
collocation: radiation detector
Luca pointed the wave detector at the wall and picked up a hidden listening device.
Luca 將電波探測器對著牆壁，偵測到一個隱藏的竊聽裝置。
The team placed a signal detector near the testing area before the trial.
團隊在測試開始前，於測試區域附近放置了一台訊號偵測器。
A Geiger counter is a common type of detector used to find harmful radiation.
蓋革計數器是一種常見的探測器，用來尋找有害輻射。
- receiver
A receiver specifically processes incoming signals for output; a detector only registers their presence.
- probe
A probe is inserted into an environment for sampling; a detector can operate at a distance.
- Geiger counter
A Geiger counter is a specific type of radiation detector used in labs and field work.
用法筆記
In scientific contexts this sense overlaps with sensor, but detector usually implies identifying a specific substance or energy type, whereas sensor measures a physical quantity.