ADAPTER FOR ACOUSTIC CALIBRATOR AND ACOUSTIC CALIBRATION SYSTEM

摘要

PROBLEM TO BE SOLVED: To enable the calibration of various shapes of microphones.;SOLUTION: When a lower cylinder part 52 of a common unit 5 with a 1/4 inch microphone 3 fittingly inserted into a second hollow part 54 is attached to a socket 11 for a 1/2 inch microphone of an acoustic calibrator 1, sound for calibration is collected by the 1/4 inch microphone 3 through a hole in the undersurface of a first hollow part 111 of the socket 11, and a hole 56 in the undersurface of the second hollow part 54 of the common unit 5 (a). When, a small microphone 4 is fitted into an upper base part 62 of an individual unit 6, an upper cylinder part 51 of the common unit 5 is fitted into the inside of the individual unit 6 (b1 to b3), and the lower cylinder part 52 of the common unit 5 is attached to the socket 11 of the acoustic calibrator 1, the sound for calibration is collected by the small microphone 4 through an internal space 12, the hole in the undersurface of the first hollow part 111 of the socket 11, the hole 56 of the undersurface of the second hollow part 54 of the common unit 5 and the second hollow part 54 (c).;SELECTED DRAWING: Figure 6;COPYRIGHT: (C)2020,JPO&INPIT