Registers – Transfer mechanism – Traveling pawl
Patent
1974-10-23
1976-01-20
Wise, Edward J.
Registers
Transfer mechanism
Traveling pawl
73 32, G01N 900, G06F 700
Patent
active
039341275
ABSTRACT:
Apparatus for producing a digital or analog output directly proportional to the ratio of the densities of two gases at the same temperature and pressure. The ratio is usually that of the density of a gas of interest to the density of air. One outstanding feature of this instrument resides in the use of an automatic DC current control for gas and air vibrating ferromagnetic vanes which unexpectedly provides temperature compensation. The gas vane is immersed in the gas. The air vane is immersed in air. Gas and air piezoelectrical crystals for the respective gas and air vanes produce output signals of frequencies corresponding to the vibrational frequencies of the respective gas and air vanes. In combination with other gear, phase lock loops adapted for frequency multiplication are employed and advantageously improve accuracy. Substantial economy is surprisingly achieved in solving the equation. Still another feature resides in the equipment saving involved in time sharing two long counters.
It is striking that the gravity of a fluid has been found to be directly proportional to either one of the following two expressions:
REFERENCES:
patent: 3117440 (1964-01-01), Wilner
patent: 3426593 (1969-02-01), Jacobs
patent: 3477277 (1969-11-01), Wostl
patent: 3603137 (1971-09-01), Banks
patent: 3769831 (1973-11-01), Schlatter
patent: 3832884 (1974-09-01), Schlatter
patent: 3862568 (1975-01-01), Schlatter et al.
Miller Charles Eveleigh
Schlatter Gerald Lance
International Telephone and Telegraph Corporation
Stolzy A. Donald
Wise Edward J.
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