Proximity sensor with zero adjustment

Details Proximity sensor with zero adjustment Proximity sensor with zero adjustment

1974-09-26

1977-11-22

Cohan, Alan

Fluid handling

Pressure modulating relays or followers

73 375, F15B 500, G01B 1300

Patent

active

040591301

ABSTRACT:
A fluidic device having a sensing nozzle remotely mounted from an emitter assembly and communicating with it through a connecting tube. An adjustable nozzle assembly, located within the emitter assembly, is movable with respect to an outlet and aligned orifice to provide a zero level output signal from the outlet for various lengths of connecting tube. The nozzle assembly is also adjustable to provide a range independent zero level output signal for different pressure level sensitivities. A test jack communicates with the outlet to monitor the output signal and provide for adjusting the zero level output signal.

REFERENCES:
patent: 2324422 (1943-07-01), Patterson
patent: 3127764 (1964-04-01), Hudson
patent: 3455318 (1969-07-01), Jenney
patent: 3643688 (1972-02-01), Meinert

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