ULTRASONIC WAVE TRANSMITTER AND RECEIVER

PURPOSE:To keep surely electric insulation between terminals by cutting preliminarily threes parts, a flexible substrate, a back side electrode and a piezoelectric ceramic diaphragm so as to form a very shallow cutting slot onto the piezoelectric ceramic diaphragm not to cause cutting chip. CONSTITU...

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Bibliographische Detailangaben
1. Verfasser:	DOI TOSHIKATSU
Format:	Patent
Sprache:	eng
Schlagworte:	ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES DIAGNOSIS ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL HUMAN NECESSITIES HYGIENE IDENTIFICATION INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING MEDICAL OR VETERINARY SCIENCE METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY PERFORMING OPERATIONS PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION SURGERY TESTING TRANSPORTING
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Beschreibung
Zusammenfassung:	PURPOSE:To keep surely electric insulation between terminals by cutting preliminarily threes parts, a flexible substrate, a back side electrode and a piezoelectric ceramic diaphragm so as to form a very shallow cutting slot onto the piezoelectric ceramic diaphragm not to cause cutting chip. CONSTITUTION:The piezoelectric ceramic diaphragm 8 and the flexible board 9 are bonded by an adhesives 10. Then the shallow cutting slot 11 is formed by the preliminary cutting to the substrate 9, the back side electrode 3 and the diaphragm 8 so as to connect the back side electrode 3 dividedly to each electric terminal 2 formed on the substrate 9. The face of the back side electrode 3 and the diaphragm 8 are bonded on an ultrasonic wave absorbing body 7. Then the surface electrode 4 and the diaphragm 8 are cut at the position in matching with the preliminary cutting position so as to form a cutting slot 6 reaching the halfway of the thickness of the diaphragm 8.