JP7127977B2 - 送受波器 - Google Patents
送受波器 Download PDFInfo
- Publication number
- JP7127977B2 JP7127977B2 JP2017202690A JP2017202690A JP7127977B2 JP 7127977 B2 JP7127977 B2 JP 7127977B2 JP 2017202690 A JP2017202690 A JP 2017202690A JP 2017202690 A JP2017202690 A JP 2017202690A JP 7127977 B2 JP7127977 B2 JP 7127977B2
- Authority
- JP
- Japan
- Prior art keywords
- transducer
- vibrator
- frequency
- matching circuit
- band
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000035945 sensitivity Effects 0.000 claims description 55
- 230000005540 biological transmission Effects 0.000 claims description 53
- 239000003990 capacitor Substances 0.000 claims description 19
- 238000000034 method Methods 0.000 description 12
- 238000010586 diagram Methods 0.000 description 9
- 238000001514 detection method Methods 0.000 description 6
- 238000012986 modification Methods 0.000 description 6
- 230000004048 modification Effects 0.000 description 6
- 238000013461 design Methods 0.000 description 5
- 241000251468 Actinopterygii Species 0.000 description 4
- 238000012545 processing Methods 0.000 description 4
- 230000007423 decrease Effects 0.000 description 3
- 238000004519 manufacturing process Methods 0.000 description 3
- 239000000463 material Substances 0.000 description 3
- 230000002093 peripheral effect Effects 0.000 description 3
- 230000002238 attenuated effect Effects 0.000 description 2
- 238000010276 construction Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
- 238000011160 research Methods 0.000 description 1
- 230000000630 rising effect Effects 0.000 description 1
- 229910001220 stainless steel Inorganic materials 0.000 description 1
- 239000010935 stainless steel Substances 0.000 description 1
- 238000002604 ultrasonography Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/0207—Driving circuits
-
- 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
- G01S15/88—Sonar systems specially adapted for specific applications
- G01S15/89—Sonar systems specially adapted for specific applications for mapping or imaging
- G01S15/8906—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques
- G01S15/895—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum
- G01S15/8954—Short-range imaging systems; Acoustic microscope systems using pulse-echo techniques characterised by the transmitted frequency spectrum using a broad-band spectrum
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
- G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
- B06B1/0618—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile of piezo- and non-piezoelectric elements, e.g. 'Tonpilz'
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0603—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using a piezoelectric bender, e.g. bimorph
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0611—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements in a pile
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52019—Details of transmitters
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52077—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging with means for elimination of unwanted signals, e.g. noise or interference
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/523—Details of pulse systems
- G01S7/524—Transmitters
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/523—Details of pulse systems
- G01S7/526—Receivers
- G01S7/527—Extracting wanted echo signals
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/50—Application to a particular transducer type
- B06B2201/55—Piezoelectric transducer
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B2201/00—Indexing scheme associated with B06B1/0207 for details covered by B06B1/0207 but not provided for in any of its subgroups
- B06B2201/70—Specific application
- B06B2201/74—Underwater
-
- 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
- G01S7/00—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00
- G01S7/52—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00
- G01S7/52017—Details of systems according to groups G01S13/00, G01S15/00, G01S17/00 of systems according to group G01S15/00 particularly adapted to short-range imaging
- G01S7/52053—Display arrangements
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Mechanical Engineering (AREA)
- Acoustics & Sound (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Health & Medical Sciences (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Transducers For Ultrasonic Waves (AREA)
Description
図1は、本発明の実施形態に係る水中探知装置1の構成を示すブロック図である。水中探知装置1は、図1に示すように、送受波器2と、送受信装置3と、信号処理部4と、操作・表示装置5(表示部)とを備えている。
図2は、送受波器2の回路図であり、振動子20を等価回路で示している。図3は、振動子20の側面図である。本実施形態の振動子20は、広帯域化を実現するために、以下の特性を満たすように設計されている。
(1)広帯域化整合回路法を設計するときに設定する共振点(第一共振)が単一の共振となっていること(等価回路表示できること)。
(2)SE-f特性(送波感度-周波数特性)が周波数の増加に伴って緩やかに右肩上がりのグラフとなっていること。
(3)広帯域化したい帯域内に大きなリップルや落ち込みが無いこと。
(4)第二共振のSEレベルが第一共振のSEレベルを超えないこと。
次に、上記(1)~(6)の条件が導かれるに至った経緯を説明する。図4は、従来例の送受波器におけるSE-f特性図である。図4では、従来の一般的な超音波振動子である振動子20’(図示せず)単体で(広帯域化整合回路を用いずに)広帯域化を図るように設計した場合のSE-f特性が、実線で示されている。また、図4では、広帯域化整合回路法による設計値通りに作成した広帯域化整合回路10’(図示せず)が付加された振動子20’でのSE-f特性が、破線で記載されている。
次に、図6に示すSE-f特性を実現するための送受波器2の構成を、より詳細に説明する。
振動子20は、等価回路において、抵抗r1、インダクタi1およびキャパシタc1が直列に接続されたRLC直列回路にキャパシタc2が並列に接続された回路に相当する。
図2および図6を参照して、広帯域化整合回路10は、周波数fの変化に対する振動子20の出力変動を抑制するために設けられている。より具体的には、広帯域化整合回路10は、振動子20のピーク周波数fpでの送波感度SEを下げることで広帯域化する。また、広帯域化整合回路10は、インピーダンス-周波数特性における反共振点を形成するけれども、この反共振点では、振動子20の送波感度SEに影響を与えない。
以上説明したように、本実施形態によると、送受波器2において、ピーク送波感度ppに対応するピーク周波数fpが所定帯域の中心周波数fcから外れ、周波数fが、中心周波数fcを基準としてピーク周波数fpから遠ざかるに従い送波感度SEが高くなるようにされている。また、広帯域化整合回路10は、ピーク周波数fpにおける振動子20の送波感度SEが、中心周波数fcにおける振動子20の送波感度SEと略等しくなるようにインピーダンス整合を行う。この構成によると、中心周波数fcを含む広い周波数範囲で、送受波器2における送波感度SEの変動を、より少なくできる。その結果、比帯域幅bwをより広くできる。
以上、本発明の実施形態について説明したが、本発明はこれらに限定されず、本発明の趣旨を逸脱しない限りにおいて種々の変更が可能である。
10,10A 広帯域化整合回路
20 振動子
21 フロントマス
26 テールマス
c3,c4 キャパシタ
f 周波数
fc 中心周波数
fp ピーク周波数
i2 インダクタ
pp ピーク送信感度
r2 抵抗
SE 送波感度
Claims (8)
- 単一の共振点に対応する単一のピーク周波数を有し、ピーク送波感度に対応する前記ピーク周波数が所定帯域の中心周波数から外れ、周波数が前記中心周波数を基準として前記ピーク周波数から遠ざかるに従い送波感度が高くなる振動子と、
前記ピーク周波数における前記振動子の送波感度が、前記中心周波数における前記振動子の送波感度と略等しくなるようにインピーダンス整合を行う、広帯域化整合回路と、
を備えていることを特徴とする、送受波器。 - 請求項1に記載の送受波器であって、
前記振動子の等価回路は、抵抗、インダクタおよびキャパシタが直列に接続されたRLC直列回路を含むことを特徴とする、送受波器。 - 請求項1または請求項2に記載の送受波器であって、
前記広帯域化整合回路は、前記インピーダンス整合において、前記ピーク周波数における前記振動子の送波感度を下げ、かつ前記中心周波数よりも高い周波数の領域における前記振動子の送波感度を下げることを特徴とする、送受波器。 - 請求項1~請求項3の何れか1項に記載の送受波器であって、
前記広帯域化整合回路は、前記振動子と直列に接続された抵抗と、前記振動子と並列に接続されたインダクタと、からなることを特徴とする、送受波器。 - 請求項1~請求項3の何れか1項に記載の送受波器であって、
前記広帯域化整合回路は、前記振動子と直列に接続された抵抗およびキャパシタと、前記振動子と並列に接続されたインダクタおよびキャパシタと、からなることを特徴とする、送受波器。 - 請求項1~請求項5の何れか1項に記載の送受波器であって、
前記振動子の前記ピーク周波数は、前記中心周波数よりも低く設定されていることを特徴とする、送受波器。 - 請求項1~請求項6の何れか1項に記載の送受波器であって、
前記振動子は、テールマスと、発振部としてのフロントマスとを含むBLT振動子であることを特徴とする、送受波器。 - 請求項7に記載の送受波器であって、
前記フロントマスの重量が前記テールマスの重量よりも小さいことを特徴とする、送受波器。
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017202690A JP7127977B2 (ja) | 2017-10-19 | 2017-10-19 | 送受波器 |
GB1816117.4A GB2567748B (en) | 2017-10-19 | 2018-10-03 | Transducer |
US16/164,227 US11035954B2 (en) | 2017-10-19 | 2018-10-18 | Transducer |
CN201811219729.2A CN109682889B (zh) | 2017-10-19 | 2018-10-19 | 收发器 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2017202690A JP7127977B2 (ja) | 2017-10-19 | 2017-10-19 | 送受波器 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2019075761A JP2019075761A (ja) | 2019-05-16 |
JP7127977B2 true JP7127977B2 (ja) | 2022-08-30 |
Family
ID=65899522
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2017202690A Active JP7127977B2 (ja) | 2017-10-19 | 2017-10-19 | 送受波器 |
Country Status (4)
Country | Link |
---|---|
US (1) | US11035954B2 (ja) |
JP (1) | JP7127977B2 (ja) |
CN (1) | CN109682889B (ja) |
GB (1) | GB2567748B (ja) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP7127977B2 (ja) * | 2017-10-19 | 2022-08-30 | 古野電気株式会社 | 送受波器 |
EP3995854A1 (en) | 2020-11-09 | 2022-05-11 | STMicroelectronics S.r.l. | A method of operating electro-acoustic transducers, corresponding circuit and device |
Family Cites Families (18)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2565033B1 (fr) * | 1984-05-22 | 1987-06-05 | Labo Electronique Physique | Dispositif de transduction ultrasonore a reseau d'elements transducteurs piezoelectriques |
JPH07118838B2 (ja) * | 1986-04-24 | 1995-12-18 | 日本電気株式会社 | 送受波器 |
JPS63214380A (ja) * | 1987-02-27 | 1988-09-07 | 三菱電機株式会社 | 圧電型変換器 |
JPH03179255A (ja) * | 1989-11-16 | 1991-08-05 | Nippon Telegr & Teleph Corp <Ntt> | 超音波センサ |
JPH0595600A (ja) * | 1991-10-02 | 1993-04-16 | Hitachi Ltd | ボルト締めランジユバン型振動子 |
JPH05183996A (ja) | 1991-12-27 | 1993-07-23 | Tokimec Inc | 広帯域超音波探触子 |
JP4291500B2 (ja) | 2000-07-26 | 2009-07-08 | Necトーキン株式会社 | 広帯域送受波器 |
JP2002159087A (ja) | 2000-11-16 | 2002-05-31 | Hitachi Ltd | 送受波器モジュール |
JP3849513B2 (ja) | 2001-12-07 | 2006-11-22 | 日本電気株式会社 | 送受波器 |
JP3702259B2 (ja) | 2002-09-11 | 2005-10-05 | アロカ株式会社 | 超音波診断装置 |
US7513872B2 (en) * | 2004-10-18 | 2009-04-07 | Kabushiki Kaisha Toshiba | Ultrasonic doppler measuring apparatus and control method therefor |
JP5195587B2 (ja) * | 2009-03-31 | 2013-05-08 | 株式会社デンソー | 超音波センサ |
JP5342005B2 (ja) * | 2009-09-17 | 2013-11-13 | 株式会社日立メディコ | 超音波探触子及び超音波撮像装置 |
US9103905B2 (en) * | 2012-12-12 | 2015-08-11 | Agency For Defense Development | Sonar system and impedance matching method thereof |
JP6259584B2 (ja) * | 2013-04-18 | 2018-01-10 | 東レエンジニアリング株式会社 | 超音波トランスデューサ |
JP6388804B2 (ja) * | 2014-07-18 | 2018-09-12 | 国立研究開発法人産業技術総合研究所 | 広帯域化高感度aeセンサー |
CN107205764B (zh) * | 2015-01-15 | 2020-07-10 | 奥林巴斯株式会社 | 振动体单元以及超声波探头 |
JP7127977B2 (ja) * | 2017-10-19 | 2022-08-30 | 古野電気株式会社 | 送受波器 |
-
2017
- 2017-10-19 JP JP2017202690A patent/JP7127977B2/ja active Active
-
2018
- 2018-10-03 GB GB1816117.4A patent/GB2567748B/en active Active
- 2018-10-18 US US16/164,227 patent/US11035954B2/en active Active
- 2018-10-19 CN CN201811219729.2A patent/CN109682889B/zh active Active
Also Published As
Publication number | Publication date |
---|---|
US11035954B2 (en) | 2021-06-15 |
US20190120958A1 (en) | 2019-04-25 |
JP2019075761A (ja) | 2019-05-16 |
CN109682889B (zh) | 2023-02-28 |
GB2567748B (en) | 2022-02-16 |
CN109682889A (zh) | 2019-04-26 |
GB2567748A (en) | 2019-04-24 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP3556582B2 (ja) | 超音波診断装置 | |
JP5011323B2 (ja) | 超音波診断装置 | |
WO2011033887A1 (ja) | 超音波探触子及び超音波撮像装置 | |
JP2018129798A5 (ja) | 音響的に分離された多チャンネルフィードバックを備えた弾性波デバイス、マルチプレクサ及び弾性表面波デバイス | |
JP7127977B2 (ja) | 送受波器 | |
CN108736157B (zh) | 基于声学驻波谐振结构的小型化低频/甚低频发射天线 | |
US20120269037A1 (en) | Broadband sound source for long distance underwater sound propagation | |
CN107852145A (zh) | 弹性波装置、高频前端电路以及通信装置 | |
US9998094B2 (en) | Bulk acoustic wave resonator having a frame spaced apart from an electrode | |
Pan et al. | A new design on broadband flextensional transducer | |
US20100312119A1 (en) | Ultrasonic probe and ultrasonic imaging apparatus | |
Butler | Triple-resonant transducers | |
EP2803204A1 (en) | Microphone module with and method for feedback suppression | |
KR101777926B1 (ko) | 이중공진 및 매칭윈도우를 이용한 광대역 톤필츠형 음향 트랜스듀서 | |
JP7024550B2 (ja) | 超音波センサー、及び超音波装置 | |
KR102267439B1 (ko) | 광대역 톤필츠형 트랜스듀서 | |
JP2009297326A (ja) | 超音波探触子および超音波診断装置 | |
EP3544745A1 (en) | Multi-band ultrasound transducers | |
JP2012096033A (ja) | 互いに異なる厚さのセラミック素子で形成されたセラミック層を備える超音波プローブおよびそれを用いた超音波システム | |
JP2007288396A (ja) | 超音波用探触子 | |
Myhre et al. | Dual frequency transducer design for suppression of multiple scattering | |
US2861247A (en) | Low loss, broad band, ultrasonic transmission systems | |
JPS6341022B2 (ja) | ||
JP2007288397A (ja) | 超音波用探触子 | |
JP2014180401A (ja) | 超音波探触子及び超音波画像診断装置 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20201005 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20210729 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20210818 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20210915 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20220208 |
|
A521 | Request for written amendment filed |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20220323 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20220816 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20220818 |
|
R150 | Certificate of patent or registration of utility model |
Ref document number: 7127977 Country of ref document: JP Free format text: JAPANESE INTERMEDIATE CODE: R150 |