Measuring and testing – Fluid pressure gauge – Diaphragm
Patent
1986-04-30
1988-01-12
Noland, Tom
Measuring and testing
Fluid pressure gauge
Diaphragm
73 4R, 73711, 738661, 338 42, G01L 902, G01L 1902, G01L 708, G01L 2700
Patent
active
047182784
ABSTRACT:
A pressure transducer comprises a movement which has separate span and set-point calibrations. A subsequent calibration of the span does not adversely influence a previous calibration of the set-point. Sensed pressure is reflected as arcuate motion of a crank mechanism along a resistor. The span calibration is performed by adjusting the position of the resistor in relation to the crank's pivot. The pivotal mounting of the crank is provided by a pivot member disposed within a slot. Adjusters in transverse slots which intersect the pivot mounting slot act upon the pivot member to establish the set-point calibration. The transducer is especially well suited for fabrication and calibration by automated equipment.
REFERENCES:
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patent: 3208264 (1965-09-01), Melton
patent: 3720090 (1973-03-01), Halpert et al.
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patent: 3961520 (1976-06-01), Modgling
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patent: 4365406 (1982-12-01), Neill et al.
patent: 4519256 (1985-05-01), Daniels
Hi-Stat Manufacturing Co., Inc.
Noland Tom
LandOfFree
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