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Measurement of Transducer Motional Impedance-An Update

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Two previous papers to the ABS and ASA have described the use of a bridge circuit capable of making continuous plots of the true motional impedance of any transducer. The bridge has been refined and combined with the TECHRON TEF machine to make usable data for design evaluation of transducers. The instrumentation and its calibration are described.

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AES - Audio Engineering Society