ULTRASONIC TRANSDUCER
To provide an ultrasonic transducer with suppressed reverberation.SOLUTION: In an ultrasonic transducer 30, a vibration damping material 44 provided on an upper surface 42a of a piezoelectric vibrator 42 suppresses the resonance of the piezoelectric vibrator 42, thereby suppressing a reverberation c...
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| creator | TAKI TATSUYA SUMIYOSHI MIKIO MARUYAMA TOSHIKI |
| description | To provide an ultrasonic transducer with suppressed reverberation.SOLUTION: In an ultrasonic transducer 30, a vibration damping material 44 provided on an upper surface 42a of a piezoelectric vibrator 42 suppresses the resonance of the piezoelectric vibrator 42, thereby suppressing a reverberation component contained in the waveform of a received signal. As a result, even when the ultrasonic transducer 30 and an object 10 are close to each other, the reverberation component in the received signal is less likely to interfere, and the detection accuracy can be improved. In particular, the ultrasonic transducer 30 is provided with three damping materials having different constituent materials on the upper surface 42a of the piezoelectric vibrator 42 (that is, a first damping material 44A, a second damping material 44B, and a third damping material 44C), so that high vibration damping characteristics can be realized in a wide range of operating environment temperatures, thereby suppressing reverberation in the received signal.SELECTED DRAWING: Figure 4
【課題】残響の抑制が図られた超音波トランスデューサを提供する。【解決手段】 超音波トランスデューサ３０においては、圧電振動子４２の上面４２ａに設けられた制振材４４が、圧電振動子４２の共振を抑制することにより、受信信号の波形に含まれる残響成分が抑制される。それにより、超音波トランスデューサ３０と対象物１０との距離が近い場合であっても、受信信号における残響成分が干渉しにくく、検出の精度向上を図ることができる。超音波トランスデューサ３０は、特に、圧電振動子４２の上面４２ａ上に構成材料が異なる３つの制振材（すなわち、第１の制振材４４Ａ、第２の制振材４４Ｂ、第３の制振材４４Ｃ）が設けられているため、広範な使用環境温度において高い制振特性を実現するができ、それにより受信信号における残響を抑制することができる。【選択図】図４ |
| format | Patent |
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【課題】残響の抑制が図られた超音波トランスデューサを提供する。【解決手段】 超音波トランスデューサ３０においては、圧電振動子４２の上面４２ａに設けられた制振材４４が、圧電振動子４２の共振を抑制することにより、受信信号の波形に含まれる残響成分が抑制される。それにより、超音波トランスデューサ３０と対象物１０との距離が近い場合であっても、受信信号における残響成分が干渉しにくく、検出の精度向上を図ることができる。超音波トランスデューサ３０は、特に、圧電振動子４２の上面４２ａ上に構成材料が異なる３つの制振材（すなわち、第１の制振材４４Ａ、第２の制振材４４Ｂ、第３の制振材４４Ｃ）が設けられているため、広範な使用環境温度において高い制振特性を実現するができ、それにより受信信号における残響を抑制することができる。【選択図】図４</description><language>eng ; jpn</language><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES ; DEAF-AID SETS ; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ; ELECTRIC COMMUNICATION TECHNIQUE ; ELECTRICITY ; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES ; LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS ; MEASURING ; PHYSICS ; PUBLIC ADDRESS SYSTEMS ; RADIO DIRECTION-FINDING ; RADIO NAVIGATION ; TESTING</subject><creationdate>2022</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=20220203&DB=EPODOC&CC=JP&NR=2022021861A$$EHTML$$P50$$Gepo$$Hfree_for_read</linktohtml><link.rule.ids>230,308,777,882,25545,76296</link.rule.ids><linktorsrc>$$Uhttps://worldwide.espacenet.com/publicationDetails/biblio?FT=D&date=20220203&DB=EPODOC&CC=JP&NR=2022021861A$$EView_record_in_European_Patent_Office$$FView_record_in_$$GEuropean_Patent_Office$$Hfree_for_read</linktorsrc></links><search><creatorcontrib>TAKI TATSUYA</creatorcontrib><creatorcontrib>SUMIYOSHI MIKIO</creatorcontrib><creatorcontrib>MARUYAMA TOSHIKI</creatorcontrib><title>ULTRASONIC TRANSDUCER</title><description>To provide an ultrasonic transducer with suppressed reverberation.SOLUTION: In an ultrasonic transducer 30, a vibration damping material 44 provided on an upper surface 42a of a piezoelectric vibrator 42 suppresses the resonance of the piezoelectric vibrator 42, thereby suppressing a reverberation component contained in the waveform of a received signal. As a result, even when the ultrasonic transducer 30 and an object 10 are close to each other, the reverberation component in the received signal is less likely to interfere, and the detection accuracy can be improved. In particular, the ultrasonic transducer 30 is provided with three damping materials having different constituent materials on the upper surface 42a of the piezoelectric vibrator 42 (that is, a first damping material 44A, a second damping material 44B, and a third damping material 44C), so that high vibration damping characteristics can be realized in a wide range of operating environment temperatures, thereby suppressing reverberation in the received signal.SELECTED DRAWING: Figure 4
【課題】残響の抑制が図られた超音波トランスデューサを提供する。【解決手段】 超音波トランスデューサ３０においては、圧電振動子４２の上面４２ａに設けられた制振材４４が、圧電振動子４２の共振を抑制することにより、受信信号の波形に含まれる残響成分が抑制される。それにより、超音波トランスデューサ３０と対象物１０との距離が近い場合であっても、受信信号における残響成分が干渉しにくく、検出の精度向上を図ることができる。超音波トランスデューサ３０は、特に、圧電振動子４２の上面４２ａ上に構成材料が異なる３つの制振材（すなわち、第１の制振材４４Ａ、第２の制振材４４Ｂ、第３の制振材４４Ｃ）が設けられているため、広範な使用環境温度において高い制振特性を実現するができ、それにより受信信号における残響を抑制することができる。【選択図】図４</description><subject>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</subject><subject>DEAF-AID SETS</subject><subject>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</subject><subject>ELECTRIC COMMUNICATION TECHNIQUE</subject><subject>ELECTRICITY</subject><subject>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</subject><subject>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</subject><subject>MEASURING</subject><subject>PHYSICS</subject><subject>PUBLIC ADDRESS SYSTEMS</subject><subject>RADIO DIRECTION-FINDING</subject><subject>RADIO NAVIGATION</subject><subject>TESTING</subject><fulltext>true</fulltext><rsrctype>patent</rsrctype><creationdate>2022</creationdate><recordtype>patent</recordtype><sourceid>EVB</sourceid><recordid>eNrjZBAN9QkJcgz29_N0VgAy_IJdQp1dg3gYWNMSc4pTeaE0N4OSm2uIs4duakF-fGpxQWJyal5qSbxXgJGBERAZWpgZOhoTpQgA6zcffw</recordid><startdate>20220203</startdate><enddate>20220203</enddate><creator>TAKI TATSUYA</creator><creator>SUMIYOSHI MIKIO</creator><creator>MARUYAMA TOSHIKI</creator><scope>EVB</scope></search><sort><creationdate>20220203</creationdate><title>ULTRASONIC TRANSDUCER</title><author>TAKI TATSUYA ; SUMIYOSHI MIKIO ; MARUYAMA TOSHIKI</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-epo_espacenet_JP2022021861A3</frbrgroupid><rsrctype>patents</rsrctype><prefilter>patents</prefilter><language>eng ; jpn</language><creationdate>2022</creationdate><topic>ANALOGOUS ARRANGEMENTS USING OTHER WAVES</topic><topic>DEAF-AID SETS</topic><topic>DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES</topic><topic>ELECTRIC COMMUNICATION TECHNIQUE</topic><topic>ELECTRICITY</topic><topic>LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES</topic><topic>LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS</topic><topic>MEASURING</topic><topic>PHYSICS</topic><topic>PUBLIC ADDRESS SYSTEMS</topic><topic>RADIO DIRECTION-FINDING</topic><topic>RADIO NAVIGATION</topic><topic>TESTING</topic><toplevel>online_resources</toplevel><creatorcontrib>TAKI TATSUYA</creatorcontrib><creatorcontrib>SUMIYOSHI MIKIO</creatorcontrib><creatorcontrib>MARUYAMA TOSHIKI</creatorcontrib><collection>esp@cenet</collection></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext_linktorsrc</fulltext></delivery><addata><au>TAKI TATSUYA</au><au>SUMIYOSHI MIKIO</au><au>MARUYAMA TOSHIKI</au><format>patent</format><genre>patent</genre><ristype>GEN</ristype><title>ULTRASONIC TRANSDUCER</title><date>2022-02-03</date><risdate>2022</risdate><abstract>To provide an ultrasonic transducer with suppressed reverberation.SOLUTION: In an ultrasonic transducer 30, a vibration damping material 44 provided on an upper surface 42a of a piezoelectric vibrator 42 suppresses the resonance of the piezoelectric vibrator 42, thereby suppressing a reverberation component contained in the waveform of a received signal. As a result, even when the ultrasonic transducer 30 and an object 10 are close to each other, the reverberation component in the received signal is less likely to interfere, and the detection accuracy can be improved. In particular, the ultrasonic transducer 30 is provided with three damping materials having different constituent materials on the upper surface 42a of the piezoelectric vibrator 42 (that is, a first damping material 44A, a second damping material 44B, and a third damping material 44C), so that high vibration damping characteristics can be realized in a wide range of operating environment temperatures, thereby suppressing reverberation in the received signal.SELECTED DRAWING: Figure 4
【課題】残響の抑制が図られた超音波トランスデューサを提供する。【解決手段】 超音波トランスデューサ３０においては、圧電振動子４２の上面４２ａに設けられた制振材４４が、圧電振動子４２の共振を抑制することにより、受信信号の波形に含まれる残響成分が抑制される。それにより、超音波トランスデューサ３０と対象物１０との距離が近い場合であっても、受信信号における残響成分が干渉しにくく、検出の精度向上を図ることができる。超音波トランスデューサ３０は、特に、圧電振動子４２の上面４２ａ上に構成材料が異なる３つの制振材（すなわち、第１の制振材４４Ａ、第２の制振材４４Ｂ、第３の制振材４４Ｃ）が設けられているため、広範な使用環境温度において高い制振特性を実現するができ、それにより受信信号における残響を抑制することができる。【選択図】図４</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | ANALOGOUS ARRANGEMENTS USING OTHER WAVES DEAF-AID SETS DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES ELECTRIC COMMUNICATION TECHNIQUE ELECTRICITY LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION ORRERADIATION OF RADIO WAVES LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKEACOUSTIC ELECTROMECHANICAL TRANSDUCERS MEASURING PHYSICS PUBLIC ADDRESS SYSTEMS RADIO DIRECTION-FINDING RADIO NAVIGATION TESTING |
| title | ULTRASONIC TRANSDUCER |
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