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单词 Thermal detector
释义

Thermal detector

原声例句
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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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更新时间:2025/6/20 1:22:45