Measuring and testing – Dynamometers – Responsive to multiple loads or load components
Patent
1989-02-10
1990-05-15
Ruehl, Charles A.
Measuring and testing
Dynamometers
Responsive to multiple loads or load components
7386264, 7386269, 32420715, 333148, G01L 516, H03H 930, G01R 3312
Patent
active
049247115
ABSTRACT:
A force transducer is described 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 either by changing the shielding effect of a magnetoelastic ribbon (between the conductor and the delay line) by applying a force to be sensed thereto, or in another alternative by modifying the distance between the conductor and the delay line in accordance with applied force. 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.
REFERENCES:
patent: 3517343 (1970-06-01), Crim
patent: 4028619 (1977-06-01), Edwards
patent: 4298861 (1981-11-01), Tellerman
patent: 4344068 (1982-08-01), Thompson et al.
patent: 4481821 (1984-11-01), Chamuel
patent: 4526043 (1985-07-01), Boie et al.
patent: 4598595 (1986-07-01), Vranishi et al.
"Magnetic Sensors of New Materials" by R. Boll et al., 1981, pp. 83-90.
Poster Presentation by Dr. Reilly, 1988 (11 sheets).
"A Magnetoacoustic Keyboard" by Worthington et al., 1979 Engineering Technology, 7 pages.
"Magnetic Shielding to Multi-Gigawatt Magnetic Switches Ten Years of Amorphous Magnetic Applications" by Smith--IEEE Transactions on Magnetics, vol. MAG-18, No. 6, 1982, pp. 1376-1381.
"An Amorphous Magnetostrictive Delayline Cordless Digitizer" by Murakami, IEEE Trans. Magnetics, vol. 24, No. 2, 1988, pp. 1738-1739.
"New Force Transducers Using Amorphous Ribbon Cores" by Mohri et al., Transactions on Magnetics, vol. MAG-14, No. 5, 1978, pp. 1071-1075.
"Sensitive Force Transducers Using a Single Amorphous Core Multivibrator Bridge" by Mohri et al., IEEE Transactions on Magnetics, vol. MAG-15, No. 6, 1979, pp. 1806-1808.
"Metallic Glasses in Devices for Energy Conversion and Conservation" by Hasegawa, Journal of Non-Crystalline Solids, 61 & 62, 1984, pp. 724-736.
"A New Torque Transducer Using Stress Sensitive Amorphous Ribbons" by Harada et al., IEEE Transactions on Magnetics, vol. MAG-18, No. 6, Nov. 1982, pp. 1767-1769.
"New Extensometers Using Amorphous Magnetostrictive Ribbon Wound Cores" by Mohri et al., IEEE Transactions on Magnetics, vol. MAG-17, No. 3, 1981, pp. 1317-1319.
"A Sonic Delay-Line Storage Unit for Digital Computer" by Fairclough, Proc. IEEE, vol. 103, Part B, Supplement No. 3, 1956, pp. 491-496.
"Wire-Type Acoustic Delay Lines for Digital Storage" by Scarrott et al., Proc. IEEE, vol. 103, Part B, Supplement No. 3, 1956, pp. 497-508.
National Research Development Corporation
Ruehl Charles A.
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