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electret

   Also found in: Dictionary/thesaurus, Wikipedia 0.04 sec.
electret, solid electrically insulating, or dielectric, material that has acquired a long-lasting electrostatic polarization. Electrets are produced by heating certain dielectric materials to a high temperature and then letting them cool while immersed in a strong electric field. An electret is an analog of a permanent magnet.
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This current Jets you connect a powered electret microphone.
It's easily fooled by PS, the Preventive Maintenance Monthly
Key words: electret detectors; environment; G-M detectors; ion chamber detectors; radiation; radioactivity; scintillation detectors; thermoluminescent detectors.
Environmental radiation monitoring at NBS/NIST from 1960 through 2000 by Hobbs, Thomas G. / Journal of Research of the National Institute of Standards and Technology
Three identical microphones (Realistic Electret 33-1052([dagger])) were attached to 3 stethoscope chest pieces (Littmann Classic II([double dagger])) via 5-cm-long rubber tubing.
Effect of Positioning on Recorded Lung Sound Intensities in Subjects ... by Burns, Yvonne / Physical Therapy
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