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词汇 Thermal detector
分类 英语词汇 英语翻译词典
释义

Thermal detector

原声例句
当月 CNN 10 学生英语 2020年1月合集

Passing through rail security, thermal detectors monitor for possible fevers.

通过安检，温度探测器将会探测有可能的疫情。

英语百科

Bolometer

Spiderweb bolometer for measurements of the cosmic microwave background radiation. Image credit: NASA/JPL-Caltech.
Conceptual schematic of a bolometer. Power, P, from an incident signal is absorbed by the bolometer and heats up a thermal mass with heat capacity, C, and temperature, T. The thermal mass is connected to a reservoir of constant temperature through a link with thermal conductance, G. The temperature increase is ΔT = P/G. The change in temperature is read out with a resistive thermometer. The intrinsic thermal time constant is τ = C/G.

A bolometer (Greek, βολόμετρον or bolometron; βολο- meaning of thrown things; and -μετρον, measurer) is a device for measuring the power of incident electromagnetic radiation via the heating of a material with a temperature-dependent electrical resistance. It was invented in 1878 by the American astronomer Samuel Pierpont Langley.
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