JP7660664B2 - 超音波トランスデューサ、測距装置および超音波トランスデューサの製造方法 - Google Patents

超音波トランスデューサ、測距装置および超音波トランスデューサの製造方法 Download PDF

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Publication number
JP7660664B2
JP7660664B2 JP2023514223A JP2023514223A JP7660664B2 JP 7660664 B2 JP7660664 B2 JP 7660664B2 JP 2023514223 A JP2023514223 A JP 2023514223A JP 2023514223 A JP2023514223 A JP 2023514223A JP 7660664 B2 JP7660664 B2 JP 7660664B2
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Japan
Prior art keywords
diaphragm
ultrasonic transducer
housing
piezoelectric element
opening
Prior art date
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JP2023514223A
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English (en)
Japanese (ja)
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JPWO2022219717A5 (https=
JPWO2022219717A1 (https=
Inventor
佳敬 梶山
伸顕 紺野
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Mitsubishi Electric Corp
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Mitsubishi Electric Corp
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Publication of JPWO2022219717A1 publication Critical patent/JPWO2022219717A1/ja
Publication of JPWO2022219717A5 publication Critical patent/JPWO2022219717A5/ja
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    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R1/00—Details of transducers, loudspeakers or microphones
    • H04R1/20—Arrangements for obtaining desired frequency or directional characteristics
    • H04R1/22—Arrangements for obtaining desired frequency or directional characteristics for obtaining desired frequency characteristic only 
    • H04R1/28—Transducer mountings or enclosures modified by provision of mechanical or acoustic impedances, e.g. resonator, damping means
    • H04R1/2807—Enclosures comprising vibrating or resonating arrangements
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S15/00—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems
    • G01S15/02—Systems using the reflection or reradiation of acoustic waves, e.g. sonar systems using reflection of acoustic waves
    • G01S15/06—Systems determining the position data of a target
    • G01S15/08—Systems for measuring distance only
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R17/00—Piezoelectric transducers; Electrostrictive transducers
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • H04R31/003—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor for diaphragms or their outer suspension
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/02—Diaphragms for electromechanical transducers; Cones characterised by the construction
    • H04R7/04—Plane diaphragms
    • H—ELECTRICITY
    • H04—ELECTRIC COMMUNICATION TECHNIQUE
    • H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R7/00—Diaphragms for electromechanical transducers; Cones
    • H04R7/16—Mounting or tensioning of diaphragms or cones
    • H04R7/18—Mounting or tensioning of diaphragms or cones at the periphery
    • H04R7/20—Securing diaphragm or cone resiliently to support by flexible material, springs, cords, or strands

Landscapes

  • Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • Acoustics & Sound (AREA)
  • Signal Processing (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Multimedia (AREA)
  • Computer Networks & Wireless Communication (AREA)
  • General Physics & Mathematics (AREA)
  • Manufacturing & Machinery (AREA)
  • Health & Medical Sciences (AREA)
  • Otolaryngology (AREA)
  • Transducers For Ultrasonic Waves (AREA)
JP2023514223A 2021-04-13 2021-04-13 超音波トランスデューサ、測距装置および超音波トランスデューサの製造方法 Active JP7660664B2 (ja)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
PCT/JP2021/015312 WO2022219717A1 (ja) 2021-04-13 2021-04-13 超音波トランスデューサ、測距装置および超音波トランスデューサの製造方法

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JPWO2022219717A1 JPWO2022219717A1 (https=) 2022-10-20
JPWO2022219717A5 JPWO2022219717A5 (https=) 2023-11-27
JP7660664B2 true JP7660664B2 (ja) 2025-04-11

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JP2023514223A Active JP7660664B2 (ja) 2021-04-13 2021-04-13 超音波トランスデューサ、測距装置および超音波トランスデューサの製造方法

Country Status (4)

Country Link
US (1) US12477269B2 (https=)
JP (1) JP7660664B2 (https=)
CN (1) CN117157992A (https=)
WO (1) WO2022219717A1 (https=)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110048138A1 (en) 2009-09-02 2011-03-03 Ping Wai Li Mems stress concentrating structure for mems sensors
CN111001553A (zh) 2019-12-18 2020-04-14 武汉大学 一种可调谐的超声传感器阵列
WO2020136983A1 (ja) 2018-12-27 2020-07-02 株式会社村田製作所 圧電トランスデューサ

Family Cites Families (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2546488B2 (ja) 1993-04-22 1996-10-23 日本電気株式会社 低周波水中送波器
NO328582B1 (no) 2006-12-29 2010-03-22 Tandberg Telecom As Mikrofon for lydkildesporing
WO2013042316A1 (ja) 2011-09-22 2013-03-28 パナソニック株式会社 指向性スピーカ
CN103297904B (zh) * 2013-05-18 2015-09-02 歌尔声学股份有限公司 一种双振膜扬声器模组
WO2020220719A1 (zh) * 2019-04-30 2020-11-05 深圳市韶音科技有限公司 一种声学输出装置
KR20220099980A (ko) * 2019-11-26 2022-07-14 그래프오디오 인코포레이션 그래핀 트랜스듀서

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US20110048138A1 (en) 2009-09-02 2011-03-03 Ping Wai Li Mems stress concentrating structure for mems sensors
WO2020136983A1 (ja) 2018-12-27 2020-07-02 株式会社村田製作所 圧電トランスデューサ
CN111001553A (zh) 2019-12-18 2020-04-14 武汉大学 一种可调谐的超声传感器阵列

Also Published As

Publication number Publication date
CN117157992A (zh) 2023-12-01
US20240179452A1 (en) 2024-05-30
JPWO2022219717A1 (https=) 2022-10-20
WO2022219717A1 (ja) 2022-10-20
US12477269B2 (en) 2025-11-18

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