Method of sensing contamination in the atmosphere

Details Method of sensing contamination in the atmosphere Method of sensing contamination in the atmosphere

1990-05-25

1991-08-27

Williams, Hezron E.

Measuring and testing

Gas analysis

By vibration

73 24003, 422 88, 422 98, G01N 3100

Patent

active

050422880

ABSTRACT:
Contamination in the atmosphere is sensed and identified using unsealed d mode resonators and a means to clean the resonators in an ongoing method to measure contamination induced frequency change with time, while compensating for temperatures induced frequency shifts.

REFERENCES:
patent: 3897992 (1975-04-01), Bartera
patent: 3981687 (1976-09-01), Vig
patent: 4760351 (1988-04-01), Newell et al.

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