Crossword clues for photometer
The Collaborative International Dictionary
Photometer \Pho*tom"e*ter\, n. [Photo- + -meter: cf. F. photom[`e]tre.] (Physics) An instrument for measuring the intensity of light, or, more especially, for comparing the relative intensities of different lights, or their relative illuminating power.
n. (context physics English) Any of several instruments used to measure various aspects of the intensity of light. vb. (context astronomy English) To measure some aspect of light (from a star) using a photometer.
A photometer, generally, is an instrument that measures light intensity or optical properties of solutions or surfaces. Photometers measure:
- Light absorption
- Scattering of light
- Reflection of light
Usage examples of "photometer".
The jump in the photometers showed that the solar blade, invisible in empty space, had traveled sideways.
At our research station, away from Edo, the company maintains radiometers, photometers, photo-polarimeters, cameras.
It carried two spectrographs, a high-speed photometer, a wide-field Advanced Charge-Coupled Device, and a fine guidance sensor.