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electret |
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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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? Mentioned in | ? References in periodicals archive | |
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This current Jets you connect a powered electret microphone. Key words: electret detectors; environment; G-M detectors; ion chamber detectors; radiation; radioactivity; scintillation detectors; thermoluminescent detectors. 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. |
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