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Sound detecting test apparatus

  • US 3,365,935 A
  • Filed: 10/13/1966
  • Issued: 01/30/1968
  • Est. Priority Date: 10/13/1966
  • Status: Expired due to Term
First Claim
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1. A TEST APPARATUS FOR THE COMPARISON OF SOUND EMITTED AT DIFFERENT AREAS OF EQUIPMENT UNDER TEST, SAID APPARATUS COMPRISING A CONTROL UNIT INCLUDING AN AUDIO AMPLIFIER HAVING AN INPUT AND AN OUTPUT, A PLURALITY OF REMOTE, INDIVIDUAL AUDIO PICKUP DEVICES EACH COMPRISING A COUPLING MEMBER FOR RELEASABLY MOUNTING SAID PICKUP DEVICE ON SAID EQUIPMENT UNDER TEST, A TRANSDUCER ELEMENT, AND A FLEXIBLE DRIVE MEMBER MECHANICALLY COUPLING SAID TRANSDUCER ELEMENT AND SAID COUPLING MEMBER WITH SAID COUPLING MEMBER ALSO SERVING AS A SENSOR TO TRANSMIT SOUND WAVES FROM SAID EQUIPMENT UNDER TEST THROUGH SAID DRIVE MEMBER TO SAID TRANSDUCER ELEMENT, MEANS INCLUDING A MANUALLY-OPERABLE SWITCH ON SAID CONTROL UNIT FOR SELECTIVE, ALTERNATE AND SUCCESSIVE COUPLING OF SAID INDIVIDUAL PICKUP DEVICES TO SAID AMPLIFIER INPUT, AND MEANS FOR CONNECTING EARPHONES AND A CURRENT METER ACROSS SAID AMPLIFIER OUTPUT, WHEREBY TO PROVIDE AUDIBLE AND VISUAL COMPARISON OF SOUND EMITTED AT SPACED POINT ON SAID TEST EQUIPMENT WHEN SAID PICKUP DEVICES ARE MOUNTED RESPECTIVELY AT SAID SPACED POINTS AND SAID SWITCH IS MANUALLY MANIPULATED TO ALTERNATELY AND SUCCESSIVELY COUPLE SAID PICKUP DEVICES TO SAID AMPLIFIER INPUT.

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