Measuring and testing – Gas analysis – By vibration
Patent
1993-03-01
1994-05-24
Arana, Louis
Measuring and testing
Gas analysis
By vibration
73 2406, 73597, G01N 3100
Patent
active
053138201
ABSTRACT:
An ultrasonic gas measuring device including a housing, end walls for the housing, the end walls having a gas inlet and a gas outlet provided therethrough, ultrasonic detecting means provided within the housing means, the ultrasonic means having a transmitter, operatively mounted on one end wall, and a receiver, operatively mounted on the other end wall, arranged at spaced locations within the housing, the housing incorporating gas processing means for dividing the gas flow at least at some instance during its flow through the housing, electronic circuitry functioning to detect and generate a signal in cooperation with the ultrasonic detecting means representative of the concentration of gas passing through the housing, the electronic means also generating a reference signal corresponding to the electronic signal delivered to the ultrasonic means, a phase shift provided within the electronic circuitry and effecting a shift of one of said signals to furnish an aligned phased relationship between the two signals whereby the concentration of the gas passing through the housing as detected by the ultrasonic means can be electronically computed and precisely determined by the said electronic means.
REFERENCES:
patent: 2568277 (1951-09-01), Eltgroth
patent: 3805590 (1974-04-01), Ringwall et al.
patent: 3981176 (1976-09-01), Jacobs
patent: 4520654 (1985-06-01), Terhune
patent: 4555932 (1985-12-01), Crosby, Jr.
patent: 5060506 (1991-10-01), Douglas
patent: 5060514 (1991-10-01), Aylsworth
Design Ideas, Detector Measures Acoustic-wave Speed, p. 232, EDN Jan. 8, 1987.
Douglas Scientific Products, Inc., Jan. 1984, Oxyalerts.
Projects Unlimited, 1985, AN-8, Application Note (3 Pages), Selection and Use of Ultrasonic Transducers (month of publication unknown).
Arana Louis
Denk Paul M.
Puritan Bennett Corporation
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