Axial and annular magneto-elastic dynamometers

Details Axial and annular magneto-elastic dynamometers Axial and annular magneto-elastic dynamometers

1975-04-15

1977-09-20

Corcoran, Robert J.

Measuring and testing

Volumetric content measuring

73DIG2, 324 34ST, 336 20, G01R 3312

Patent

active

040488519

ABSTRACT:
An apparatus and method for measuring stresses or forces by measurement of variations of the magnetic properties of ferromagnetic substances under stress conditions. This is carried out by providing a ring of ferromagnetic material between two parallel faces on or between which the stresses are exerted, the ring defining a magnetic circuit, providing an electric coil within and around the ring, passing a current through the coil and measuring changes in the properties of the current to measure variations in the magnetic properties of the ring.

REFERENCES:
patent: 2053560 (1936-09-01), Janovsky
patent: 3258962 (1966-07-01), Dahle
patent: 3577108 (1971-05-01), Bengtson
patent: 3745448 (1973-07-01), Hiratsuka et al.

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