Modulated fluid detector

Details Modulated fluid detector Modulated fluid detector

1976-10-07

1981-03-10

Kreitman, Stephen A.

Measuring and testing

Gas analysis

By vibration

G01N 3108

Patent

active

042546540

ABSTRACT:
A sample fluid and a reference fluid are alternately applied to a fluid detector and an output signal is derived that is proportional to the difference between the response of the detector to the fluids.

REFERENCES:
patent: 1954681 (1934-04-01), Oetjen
patent: 2255551 (1941-09-01), Willenborg
patent: 3050983 (1962-08-01), Gohlke
patent: 3084536 (1963-04-01), McNabb
patent: 3087112 (1963-04-01), Pfefferle
patent: 3924442 (1975-12-01), Kerho et al.
patent: 4863489 (1975-02-01), 3,863,489
Palmer et al., Thermal Conductivity Method for Analysis of Gases, pp. 36-39, 42, 47, 1924.

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