bolometer
- noun
- /bəˈlɒmətər/
- Specialized
- Starlight enters through a small window in the side of the Dewar flask and raises the temperature of the bolometer.
Examples
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A bolometer is the instrument used to measure radiant energy over a wide band by absorption and measurement of heating.
Blog text (5) -
In essence, a bolometer is a piece of material whose electrical resistance varies with its temperature.
Academic text (1991) -
OK, what the absorb, what the bolometer head actually looks like is we have some large lump of gold here.
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Bolometers were among the earliest detectors used in the near infrared, and modern bolometers are one trillion times as sensitive as common thermometers.
Academic text (1991) -
Bolometers were among the earliest detectors used in the near infrared, and modern bolometers are one trillion times as sensitive as common thermometers.
Academic text (1991) -
A bolometer can accurately measure tiny changes in infrared radiation, making it essential for scientific research.
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Researchers use a bolometer to detect the heat emitted by distant stars in the universe.
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The bolometer played a crucial role in the experiment, as it allowed the scientists to measure thermal radiation with great precision.
How Sensitive
Surface Forms
Morphology
bolometer = bolo + meter
Although the word contains the recognizable measuring suffix '-meter', the combining form 'bolo-' is specialized and does not transparently signal 'heat (infrared) radiation' to an average learner.
Etymology
The word bolometer breaks into bolo- and -meter, and -meter means 'measure', just like in thermometer. A helpful way to remember bolo- is to imagine a 'bolt' of heat or light, because a bolometer measures very small amounts of invisible heat called 'infrared radiation'.