Method of measuring axial force on a body utilizing two vibratio

Details Method of measuring axial force on a body utilizing two vibratio Method of measuring axial force on a body utilizing two vibratio

1975-04-24

1976-08-24

Gill, James J.

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

Content or effect of a constituent of a liquid mixture

73 88F, G01H 1300, G01B 1704, G01N 2900

Patent

active

039759482

ABSTRACT:
A method for measuring the axial force exerted on a body to be measured by applying two ultrasonic frequencies respectively having a transverse-wave vibration mode and a longitudinal-wave vibration mode to a body on which an axial force is exerted, measuring the natural frequencies of the body in the transverse-wave and longitudinal-wave vibration modes, obtaining the result of a computational operation (e.g., the result of a subtraction) on the measured natural frequencies, and measuring from this result the axial force exerted on the body in accordance with the predetermined result-versus-axial force calibration values.

REFERENCES:
patent: 3306100 (1967-02-01), Wilhelm et al.
patent: 3822587 (1974-07-01), Makino et al.
patent: 3918294 (1975-11-01), Makino et al.

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