Apparatus for monitoring instrument readings of transient force

Details Apparatus for monitoring instrument readings of transient force Apparatus for monitoring instrument readings of transient force

1979-07-09

1980-09-02

Swisher, S. Clement

Measuring and testing

Instrument proving or calibrating

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

73 4R, 7386176, G01L 2500

Patent

active

042200385

ABSTRACT:
A device for verifying instrument readings of transient force of a moving fluid column including a paddle depending from a taut wire torsion bar. The unit is adaptable to instruments utilizing fluid pulses in testing objects for resistance or vulnerability to fluid stream pressure, e.g. ophthalmic tonometers. With disposition of the paddle in an instrument fluid path and a known torsional force applied to the supporting wire, the force required of a fluid column to displace the paddle may be established for verification of instrument readings and/or indication of defective instruments.

REFERENCES:
patent: 2316255 (1943-04-01), Knobel et al.
patent: 3889518 (1975-06-01), Denouter
patent: 4000640 (1977-01-01), Kocmich

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