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时间: 2020-1-13 13:54
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SpeakerMeasuringMeasurementMicrophoneKitFreeFieldresponsecharacteristic5Hzto40kHzfrequencyresponseCompletekitofallrequireditemsCarryingcaseACorbatteryoperationAcousticcalibratoravailableCentraltovirtuallyeveryacousticmeasurementisthemeasurementmicrophone.Loudspeakertesting,roomanalysis,andnoisemeasurementallstartwithanacousticsignal.Themicrophoneconvertsthisacousticsignalintoanelectricalsignalforprocessinginthemeasuringinstrument.Theaccuracyofthisconversiondefinesthequalityofthemicrophone.Mostmeasurementmicrophonesarecapacitorelementtypes.Thecentralelementofacapacitormeasurementmicrophoneisconceptuallysimple:Athinmetallicdiaphragmisstretchedoveraridgedbackplate.Thediaphragmandbackplateform……