A magnetic bubble detector using the principles of magneto‐striction and piezoelectricity has been constructed and tested. It has higher signal to noise ratio than conventional detectors since it does not require any problems associated with currents flowing in thin conductors. A simplified analysis shows that this device is capable of outputs of tens of millivolts with presently developed materials. An experimental device produced an output 1.2 millivolts from a simulated bubble in orthoferrite material. The principle of operation of the device is that of electrocmechanical transformer. The field of a bubble causes a strain in a magnetostrictive overlay. This strain is transferred to a piezoelectric crystalline film which produces an electrical ouput at high electrical impedance.
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April 1975
Magnetism and Magnetic Materials-1974: 20th Annual Conference, San Francisco
3-6 December 1974
San Francisco, CA, USA
Research Article|
April 01 1975
Magnetostrictive‐piezoelectric bubble detectors
W. Ishak;
W. Ishak
Group on Simulation, Optimization and Control, Department of Electrical Engineering, McMaster University, Hamilton, Ontario, L8S 4L7, Canada
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W. Kinsner;
W. Kinsner
Group on Simulation, Optimization and Control, Department of Electrical Engineering, McMaster University, Hamilton, Ontario, L8S 4L7, Canada
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E. Della Torre
E. Della Torre
Group on Simulation, Optimization and Control, Department of Electrical Engineering, McMaster University, Hamilton, Ontario, L8S 4L7, Canada
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AIP Conf. Proc. 24, 558–559 (1975)
Citation
W. Ishak, W. Kinsner, E. Della Torre; Magnetostrictive‐piezoelectric bubble detectors. AIP Conf. Proc. 1 April 1975; 24 (1): 558–559. https://doi.org/10.1063/1.30167
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