Personal air sampling system

Details Personal air sampling system Personal air sampling system

1980-12-29

1983-03-01

Krass, Errol A.

Boots, shoes, and leggings

73861, 7386323, 364510, G06F 1542, G01N 122

Patent

active

043756670

ABSTRACT:
A thermal anemometer is employed to detect the velocity of the air flowing through a personal air sampling device. A microprocessor system is employed to periodically read the signal from the thermal anemometer and calculate the sample air flow rate. The measured flow rate is integrated over the sample period to provide an indication of the total volume of air sampled. Flow rates need not be calibrated during the sample period to insure accurate collection data, thus providing an automated and accurate means for measuring air quality.

REFERENCES:
patent: 3279251 (1966-10-01), Chanaud
patent: 3965748 (1976-06-01), Boubel et al.
patent: 4080832 (1978-03-01), Moody et al.
patent: 4167870 (1979-09-01), Haas
patent: 4217777 (1980-08-01), Newman
patent: 4246788 (1981-01-01), Olin et al.
Nutter et al., "Coal Mine Ventilation Remote Control Utilizing a Microprocessor", Industry Appl. Conf.-IEEE-9/30-10/4, 1979, pp. 1184-1190.

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