METHOD OF MANUFACTURING ACOUSTIC MATCHING MEMBER, ULTRASONIC SENSOR USING THE ACOUSTIC MATCHING MEMBER AS ACOUSTIC MATCHING LAYER, AND FLUID FLOW MEASURING APPARATUS USING ULTRASONIC SENSOR

• Main Authors: ITO MASAHIKO, SATO MASATO, ADACHI AKIHISA
• Format: Patent
• Language: English
• Published: 22.09.2005
• Edition: 7
• Subjects: DEAF-AID SETS; ELECTRIC COMMUNICATION TECHNIQUE; ELECTRICITY; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS; MEASURING; MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUIDLEVEL; METERING BY VOLUME; PHYSICS; PUBLIC ADDRESS SYSTEMS; TESTING

PROBLEM TO BE SOLVED: To improve production efficiency by eliminating uneven steps on a side wall surface in an acoustic matching member comprised of a mixture of a hollow sphere and a binding material so as to manufacture an acoustic matching member which is smooth all over the the side wall surface. SOLUTION: In a housing 7 comprising a housing chamber 8 for housing a mixture 16 of a hollow sphere 9 and a binding material 11, the binding material 11 on an interface of the housing chamber 8 is quickly heated and cured from heating of the housing 7 itself by induction heating or the like as a first curing step, the first curing step is implemented and the binding material is then heated and cured in an atmosphere tank as a second curing step, so that the entire front surface of the side wall of an acoustic matching member 17 can be formed as a smooth surface and the acoustic matching member 17 can be equally cured as a whole. COPYRIGHT: (C)2005,JPO&NCIPI