Transducer for sending and/or receiving of acoustic signals
The sensor has a pot-shaped cylindrical housing preferably of metal or plastic. The housing floor (3) acts as a vibratory diaphragm. Part of the wall (6) is built out to a greater thickness (d). A circular, elliptical or rectangular piezoelectric element (4) is attached to the inside of the diaphrag...
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| creator | MUNSCH, PETER NOLL, MARTIN WANNKE, DIETMAR KARR, DIETER KNOLL, PETER RAPPS, PETER |
| description | The sensor has a pot-shaped cylindrical housing preferably of metal or plastic. The housing floor (3) acts as a vibratory diaphragm. Part of the wall (6) is built out to a greater thickness (d). A circular, elliptical or rectangular piezoelectric element (4) is attached to the inside of the diaphragm with its centre on the axis of symmetry. The thickening reduces the effective area of the diaphragm so that it oscillates in dependence on the excitation frequency in a fundamental mode with practically no discernible harmonics. |
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The housing floor (3) acts as a vibratory diaphragm. Part of the wall (6) is built out to a greater thickness (d). A circular, elliptical or rectangular piezoelectric element (4) is attached to the inside of the diaphragm with its centre on the axis of symmetry. The thickening reduces the effective area of the diaphragm so that it oscillates in dependence on the excitation frequency in a fundamental mode with practically no discernible harmonics.</description><edition>6</edition><language>eng ; fre ; ger</language><subject>ACOUSTICS ; ACOUSTICS NOT OTHERWISE PROVIDED FOR ; ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DEAF-AID SETS ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; FOR PERFORMING MECHANICAL WORK IN GENERAL ; GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; MEASURING ; METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY ; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL ; MUSICAL INSTRUMENTS ; PERFORMING OPERATIONS ; PHYSICS ; PUBLIC ADDRESS SYSTEMS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; SOUND-PRODUCING DEVICES ; TESTING ; TRANSPORTING ; VEHICLES IN GENERAL ; VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR</subject><creationdate>1999</creationdate><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990901&DB=EPODOC&CC=EP&NR=0802521A3$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,780,885,25563,76318</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=19990901&DB=EPODOC&CC=EP&NR=0802521A3$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>MUNSCH, PETER</creatorcontrib><creatorcontrib>NOLL, MARTIN</creatorcontrib><creatorcontrib>WANNKE, DIETMAR</creatorcontrib><creatorcontrib>KARR, DIETER</creatorcontrib><creatorcontrib>KNOLL, PETER</creatorcontrib><creatorcontrib>RAPPS, PETER</creatorcontrib><title>Transducer for sending and/or receiving of acoustic signals</title><description>The sensor has a pot-shaped cylindrical housing preferably of metal or plastic. 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| language | eng ; fre ; ger |
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| source | esp@cenet |
| subjects | ACOUSTICS ACOUSTICS NOT OTHERWISE PROVIDED FOR ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY FOR PERFORMING MECHANICAL WORK IN GENERAL GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICALVIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING,NOISE OR OTHER ACOUSTIC WAVES IN GENERAL MUSICAL INSTRUMENTS PERFORMING OPERATIONS PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION SOUND-PRODUCING DEVICES TESTING TRANSPORTING VEHICLES IN GENERAL VEHICLES, VEHICLE FITTINGS, OR VEHICLE PARTS, NOT OTHERWISEPROVIDED FOR |
| title | Transducer for sending and/or receiving of acoustic signals |
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