Charged particle selector as a function of particle electrical m

Details Charged particle selector as a function of particle electrical m Charged particle selector as a function of particle electrical m

1997-02-05

2000-01-11

Noland, Thomas P.

Measuring and testing

Particle size

95 34, G01N 1514, G01N 1504

Patent

active

060123435

ABSTRACT:
A charged particle selector having first and second circular electrical mobility selector portions is shown to include directing portions for directing particles selected by the first circular electrical mobility selector to the input of the second circular electrical mobility selector. These selectors may be combined to be in parallel instead of in series. The charged particle selector can be used to make in-line measurement of the mass and/or density of aerosol particles, to make measurements of the size of the particles and/or their distribution as well as the distribution of aerosol electrical charges.

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