photometer

Example Sentences

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Euclid launched in July to probe the fine details of this sprawling structure with a state-of-the-art 600-megapixel visible-light camera and a wide-field near-infrared spectrometer and photometer.

From Scientific American • Nov. 8, 2023

Euclid also has a near-infrared spectrometer and photometer for measuring each galaxy’s redshift, or the wavelength-stretching effect that occurs in light arriving from the faraway cosmos.

From New York Times • Jul. 1, 2023

Using an instrument called a photometer, which measures brightness very accurately, researchers can detect those dips and—from their duration and frequency—can deduce the size of the exoplanet and its orbit.

From Science Magazine • Jan. 14, 2015

The machines, like the electronic nose or the laser-wielding robot that measures atmospheric ozone 10 kilometers up known as the sun photometer, constantly monitor air quality from 17 different sites.

From Scientific American • Jan. 8, 2013

To measure this light he designed in 1844 another instrument, which in various modifications has come into extensive use—the grease-spot photometer.

From Encyclopaedia Britannica, 11th Edition, Volume 4, Part 4 "Bulgaria" to "Calgary" by Various