dust counter

American  

noun

1. any instrument used to measure the size and number of dust particles per unit volume in the atmosphere.

---

Etymology

Origin of dust counter

First recorded in 1890–95

Example Sentences

Many of its instruments are in hibernation, but a dust counter has run continuously during the mission.

From Science Magazine • Oct. 3, 2023

Just as intriguing as the new objects is the apparent gap between 50 and 60 AU, says Mihály Horányi, a space physicist at the University of Colorado Boulder who oversees New Horizons’s dust counter.

From Science Magazine • Oct. 3, 2023

The finished spacecraft carried seven instruments, including a student-built interplanetary dust counter and a sensor to measure the energy of particles escaping from Pluto's atmosphere.

From Science Magazine • Jun. 25, 2015

A dust counter watches the sun to find out whether microscopic dust particles are coming from its direction.

From Time Magazine Archive

To show the hazing effects of dust it is not, however, necessary to use a dust counter.

From Encyclopaedia Britannica, 11th Edition, Volume 8, Slice 8 "Dubner" to "Dyeing" by Various