Crossword clues for densitometer
The Collaborative International Dictionary
densitometer \densitometer\ n.
an instrument for determining optical or photographic density. A variety capable of measuring optical density of a sample at a number of different wavelengths, is called a spectrophotometer.
same as densimeter.
Wiktionary
n. 1 A device that measures the optical density of a material. 2 A device that measures the specific gravity of a substance; a densimeter.
WordNet
n. a measuring instrument for determining optical or photographic density
a measuring instrument for determining density or specific gravity [syn: densimeter]
Wikipedia
A densitometer is a device that measures the degree of darkness (the optical density) of a photographic or semitransparent material or of a reflecting surface. The densitometer is basically a light source aimed at a photoelectric cell. It determines the density of a sample placed between the light source and the photoelectric cell from differences in the readings. Modern densitometers have the same components, but also have electronic integrated circuitry for better reading.
Usage examples of "densitometer".
He would have a densitometer, as it was known, to measure the visibility of a ground flare.
In making all of these sightings, for the use of the camera, the densitometer, or whatever, he would be using an entirely new manual control apparatus.
He was swinging the capsule this way and that way, taking photographs a mile a minute, making detailed observations of the sunrises and horizon, releasing balloons, tending his bottles, taking readings with the densitometer, having a grand time.
He reached for the densitometer, and his hand hit the hatch of the capsule, and a cloud of John Glenn's "fireflies" appeared outside the window.
No more densitometers and varicolored balloons and other White Smock accessories.
Voit's probes found no openings, nor did his densitometer readings show any significant spaces behind.