You searched for: “dust counter”
koniscope, coniscope, dust counter, Aitken dust counter
An scientific instrument which indicates the presence of dust particles in the atmosphere.

Named after John Aitken (1839-1919), a Scottish physicist and meteorologist, one of the founders of cloud physics and aerosol science who invented the first koniscope.

This entry is located in the following units: coni-, conio-, -coniosis, -conite, koni-, konio-, kon-, kono- (page 2) scopo-, scop-, scept-, skept-, -scope-, -scopy, -scopia, -scopic, -scopist (page 14)
Word Entries containing the term: “dust counter”
konimeter, coniometer, jet dust counter
1. An instrument for measuring the amount of dust in the air.
2. A portable instrument for making a rough and rapid evaluation of airborne dust concentrations.

It consists of a hand-primed pump that draws a known volume of air through a jet on to a plate on which particles ar counted under magnification.

This entry is located in the following units: coni-, conio-, -coniosis, -conite, koni-, konio-, kon-, kono- (page 2) jet-, -ject, -jecting, -jected, -jection, -jector, -jectory; jacu-, jac- (page 5) meter-, metro-, metr-, -metrical, -metrically, -metron, -metric, -metrist, -meter, -meters, -metry, -metre (page 21)