Accession Number:

ADA030814

Title:

A Trigger Circuit for a Hot-Wire-Anemometer Aerosol Detector

Descriptive Note:

Technical rept. Jan-Mar 1971

Corporate Author:

EDGEWOOD ARSENAL ABERDEEN PROVING GROUND MD

Personal Author(s):

Report Date:

1976-10-01

Pagination or Media Count:

17.0

Abstract:

This report describes a cathode-coupled multivibrator which was designed and used in conjunction with a standard constant temperature anemometer CTA to measure local aerosol concentrations in turbulent impaction wind-tunnel experiments. The circuit acts like an electronic switch to actuate an electronic frequency counter each time a relatively cool aerosol particle impacts on a standard heating filament of the CTA and serves to prevent erroneous multiple counts from a single droplet.

Subject Categories:

  • Physical Chemistry
  • Electrical and Electronic Equipment
  • Test Facilities, Equipment and Methods

Distribution Statement:

APPROVED FOR PUBLIC RELEASE