Measuring and testing – With fluid pressure – Dimension – shape – or size
Patent
1977-05-02
1978-07-18
Queisser, Richard C.
Measuring and testing
With fluid pressure
Dimension, shape, or size
73160, G01B 1308
Patent
active
041007913
ABSTRACT:
An apparatus for producing an electrical output signal which varies as a function of sliver thickness with a trumpet having a bore through which the sliver passes and a port opening into the bore, and a sensor with a housing defining an inner space sealingly divided by a flexible diaphragm into an upper compartment and a lower averaging compartment. The lower compartment is connected to the trumpet port and to a pressure source via a metering valve having an air escape port. A shaft is fixed for movement vertically with the diaphragm and has a weight on the end within the lower compartment and a magnetic portion in the upper compartment. Vertical movement of the diaphragm caused by a change in back pressure caused in turn by a change in sliver thickness produces an electrical signal in a coil wound about the shaft in the upper compartment as the coil interacts with the magnetic portion.
REFERENCES:
patent: 2843882 (1958-07-01), Lewis et al.
patent: 3154810 (1964-11-01), Horne
patent: 3283564 (1966-11-01), Biddison, Jr.
patent: 3435673 (1969-04-01), Felix
patent: 3710421 (1973-01-01), Tooka
patent: 3752170 (1973-08-01), Murbach
Donnelly James E.
Lytton Kenneth G.
Miller George J.
Fiber Controls Corporation
Queisser Richard C.
Roskos Joseph W.
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