Measuring and testing – Gas analysis – Moisture content or vapor pressure
Patent
1979-12-14
1982-03-02
Myracle, Jerry W.
Measuring and testing
Gas analysis
Moisture content or vapor pressure
G01K 308
Patent
active
043173667
ABSTRACT:
The interior space of a combustion chamber, boiler, or other such gas-filled chamber exhibits an acoustic response spectrum to acoustic energy excitation which includes plural maxima attributable to acoustic natural-vibration frequencies. The frequencies of these natural vibrations are dependent upon both the interior temperature of the chamber and also upon the normality or molarity of the gaseous contents of the chamber. One of these two variables, i.e., temperatures or else normality or molarity, is measured by conventional devices. The other variable is then measured using a pressure transducer generating an electrical signal indicative of the chamber interior's acoustic response spectrum, the transducer output signal being applied to a discriminator circuit which develops a measurement signal indicative of the value of the variable being measured. In this way, interior temperature can be continuously monitored by acoustic devices with high accuracy.
REFERENCES:
patent: 2871348 (1959-01-01), Hutchinson et al.
patent: 3604252 (1971-09-01), Becken
patent: 3706227 (1972-12-01), Gottron et al.
patent: 3885436 (1975-05-01), Meyer
patent: 4020693 (1977-05-01), Ahlgren et al.
Schmidt-Traub Henner
Tewes Giesbert
Krupp-Koppers GmbH
Myracle Jerry W.
Striker Michael J.
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