Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1990-02-26
1991-12-10
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
73172, 7386264, 7386269, 128779, 32420717, 333148, G01L 516, G01R 3312, H03H 930
Patent
active
050707370
ABSTRACT:
A force transducer which uses current pulses in a conductor to generate acoustic pulses in a magnetostrictive delay line. The pulses are sensed by a coil around the line. The magnitude of the pulses is modified by force applied to the transducer by changing the shielding effect of a magnetoelastic ribbon (between the conductor and the delay line) by applying a force to be sensed thereto. The transducers are economic and easily assembled into arrays for sensing stress distribution in two dimensions because the common conductors can be used for the columns of the array and common delay lines can be used for the array rows. Each column then has a common current-pulse generator and each row has a common detector coil. A similar technique may be used for sensing the spatial distribution of other parameters such as temperature, magnetic field or displacement.
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Poster Presentation by Dr. Reilly, 1988 (11 sheets).
National Research Development Corporation
Ruehl Charles A.
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