Calibrating unit for calibrating a hydraulic or electric pressur

Details Calibrating unit for calibrating a hydraulic or electric pressur Calibrating unit for calibrating a hydraulic or electric pressur

1980-08-13

1982-06-08

Woodiel, Donald O.

Measuring and testing

Instrument proving or calibrating

Volume of flow, speed of flow, volume rate of flow, or mass...

G01L 2700

Patent

active

043333311

ABSTRACT:
A calibrating unit for calibrating a pressure gauge includes a piston (7) which may be loaded by pressurized oil and which may be fastened at its upper end to the pressure gauge. A pressure piece (11) being movable within the piston (7) can be loaded at its upper side by a measuring member (3) of the pressure gauge and can transmit this load at its lower side to a spring system (15,16,17) resting on the housing (6) of the unit. The movement of the pressure piece (11) is determined by a measuring instrument such as a measuring watch (21). The deflection of the pointer of this watch is a calibrating measure for the pressure gauge.

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