Measuring and testing – Moisture content or absorption characteristic of material
Patent
1975-10-14
1977-08-09
Queisser, Richard C.
Measuring and testing
Moisture content or absorption characteristic of material
73515, G01H 100, G01P 1502
Patent
active
040402908
ABSTRACT:
A transducer for measuring the amplitude of vibration of a member vibrating at a constant frequency. An outflow aperture is supplied from a compressed air supply, and opposite to the outflow aperture an obstructing element is arranged which can close the outflow aperture, the outflow aperture and element undergoing relative motion transverse to the direction of air flow. The average quantity of outflowing air is measured.
REFERENCES:
patent: 2551289 (1951-05-01), Quinlan
patent: 3267725 (1966-08-01), Connaught
R. E. Sarkisyan, A Jet Device for Measuring the Maximum Amplitude of Vibration, Instrumentation and Control, Aug. 1970, pp. 81, 82.
Holster Peter Leendert
Ooms Adam
VAN DEN Hoogen Marinus Johannes Gerardus
Beauchamp John P.
Queisser Richard C.
Treacy David R.
Trifari Frank R.
U.S. Philips Corporation
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