Densitometer with remotely disposed control electronics

Details Densitometer with remotely disposed control electronics Densitometer with remotely disposed control electronics

1988-09-02

1991-02-26

Dixon, Joseph L.

Boots, shoes, and leggings

73 32A, 364509, G01N 900

Patent

active

049966561

ABSTRACT:
A fluid density measuring device or densitometer computes, electronically, the density of a fluid by measuring the resonant frequency of an excitation signal provided to a density transducer (11) immersed in the fluid. The frequency at which resonance occurs in the circuit (13, 15, 17, 21, 23, 25, 29, 31, 37, 41) will vary according to the density of the fluid, and this information is used by measuring electronics (31, 37, 41, 43), including a programmed microprocessor (43), to calculate the density of the fluid. The output of the microprocessor (43) may be a display of fluid density information or may be transmitted to a fuel gauge.

REFERENCES:
patent: 3795136 (1974-03-01), Schiatter
patent: 3878374 (1975-04-01), Schlatter
patent: 4037459 (1977-07-01), Schlatter
patent: 4240285 (1980-12-01), Langdon
patent: 4546641 (1985-10-01), Nguyen
patent: 4783987 (1988-11-01), Hager et al.
patent: 4788466 (1988-11-01), Paul et al.
patent: 4802360 (1989-02-01), Maier
patent: 4815323 (1989-03-01), Ellinger et al.
patent: 4838084 (1989-06-01), Leopold
patent: 4848139 (1989-07-01), Blake-Coleman et al.

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