ACOUSTIC CALIBRATOR

PROBLEM TO BE SOLVED: To provide an acoustic calibrator for more accurately performing the acoustic calibration of a microphone with a diameter of 1/2 inch than that with a diameter of 1 inch. SOLUTION: This acoustic calibrator is provided with an acoustic calibrator body 1 where a first insertion p...

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Bibliographische Detailangaben
1. Verfasser:	FUNAHASHI FUMITAKA
Format:	Patent
Sprache:	eng
Schlagworte:	DEAF-AID SETS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASUREMENT OF MECHANICAL VIBRATIONS OR ULTRASONIC, SONIC ORINFRASONIC WAVES MEASURING PHYSICS PUBLIC ADDRESS SYSTEMS TESTING
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide an acoustic calibrator for more accurately performing the acoustic calibration of a microphone with a diameter of 1/2 inch than that with a diameter of 1 inch. SOLUTION: This acoustic calibrator is provided with an acoustic calibrator body 1 where a first insertion port 4 for inserting a capacitor microphone with a diameter of 1/2 inch is formed, and an adaptor 2 where a hollow insertion part 8 to be inserted into the first insertion port 4 is formed at one end, and at the same time a second insertion port 9 for inserting a capacitor microphone with a diameter of 1 inch communicating with the insertion part 8 is formed at the other end. The acoustic calibrator body 1 is provided with a calibration space part 5 communicating with the first insertion port 4, and an electroacoustic converter 6 for supplying a specific sound pressure with a specific frequency to the calibration space part 5.