JPS58123300A - Wave transmitter and receiver - Google Patents
Wave transmitter and receiverInfo
- Publication number
- JPS58123300A JPS58123300A JP564982A JP564982A JPS58123300A JP S58123300 A JPS58123300 A JP S58123300A JP 564982 A JP564982 A JP 564982A JP 564982 A JP564982 A JP 564982A JP S58123300 A JPS58123300 A JP S58123300A
- Authority
- JP
- Japan
- Prior art keywords
- wave
- electrostrictive material
- reception
- wave transmission
- electroacoustic
- 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.)
- Granted
Links
- 239000000463 material Substances 0.000 claims abstract description 26
- 230000005540 biological transmission Effects 0.000 claims abstract description 10
- 230000005855 radiation Effects 0.000 abstract description 7
- 230000002463 transducing effect Effects 0.000 abstract 2
- 229910000831 Steel Inorganic materials 0.000 abstract 1
- 239000010959 steel Substances 0.000 abstract 1
- 230000035945 sensitivity Effects 0.000 description 4
- 230000007423 decrease Effects 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 229910052802 copper Inorganic materials 0.000 description 1
- 239000010949 copper Substances 0.000 description 1
- 238000003384 imaging method Methods 0.000 description 1
- 230000006698 induction Effects 0.000 description 1
- 230000001939 inductive effect Effects 0.000 description 1
- 230000000704 physical effect Effects 0.000 description 1
- 230000029058 respiratory gaseous exchange Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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
- B06B1/06—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'
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R17/00—Piezoelectric transducers; Electrostrictive transducers
- H04R17/04—Gramophone pick-ups using a stylus; Recorders using a stylus
- H04R17/08—Gramophone pick-ups using a stylus; Recorders using a stylus signals being recorded or played back by vibration of a stylus in two orthogonal directions simultaneously
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は主として通信用の超音波装置に使用する送受波
器に関するものである。DETAILED DESCRIPTION OF THE INVENTION The present invention mainly relates to a transducer used in an ultrasonic device for communication.
従来、この種の送受波器には、送波と受波の電気音響変
換部を共用とするものと、別々にして専用とするものが
ある。前者の場合には、送波の電気信号（入力）の整合
のための整合回路があると受波の電気信号（出力）であ
る受波感度の周波数特性が制限される欠点があった１例
えば、容量性り・アクタンス成分をもつ電歪材等を使用
した電気音響変換部にインピーダンス変換を兼ねたトラ
ンスを接続し、このトランスの誘導性リアクタンス成分
によって共役をとるとき、低周波数域ではこの誘導性リ
アクタンス成分が低下し、受渡の電気信号（出力）は低
減することになる。一方、送波と受渡の電気音響変換部
が別々になっている後者の場合には、これら電気音響変
換部の音圧を送波又は受波する放射面を別々に構成、配
置するものであるため形状が大型になり重量が増加する
欠点があっ九。Conventionally, in this type of transducer, there are those that share the electroacoustic converter for transmitting and receiving waves, and those that use separate electroacoustic transducers for exclusive use. In the former case, if there is a matching circuit for matching the transmitting electrical signal (input), there is a drawback that the frequency characteristics of the receiving sensitivity, which is the receiving electrical signal (output), will be limited1. When a transformer that also serves as impedance conversion is connected to an electroacoustic transducer using an electrostrictive material etc. that has capacitive and actance components, and a conjugate is created by the inductive reactance component of this transformer, in the low frequency range, this induction The reactive reactance component decreases, and the electric signal (output) for delivery decreases. On the other hand, in the latter case where the transmitting and receiving electroacoustic transducers are separate, the radiation surfaces for transmitting or receiving the sound pressure of these electroacoustic transducers are configured and arranged separately. Therefore, the disadvantage is that the shape becomes larger and the weight increases.
本発明の目的は、これらの欠点を除き、小型軽量で送波
と受波とに優れた特性を得られる送受波器を提供するこ
とにある。SUMMARY OF THE INVENTION An object of the present invention is to eliminate these drawbacks and provide a transducer that is small and lightweight and can obtain excellent characteristics in transmitting and receiving waves.
本発明の送受波器は、圧電材あるいは電歪材からなる受
波用の小形電気音響変換部を、送波用電気音響変換部の
音波放射面に密着させて構成したことを特徴とする。The transducer of the present invention is characterized in that a small electroacoustic transducer for wave reception made of a piezoelectric material or an electrostrictive material is configured in close contact with a sound wave emitting surface of an electroacoustic transducer for wave transmission.
次に本発明の実施例について図面を参照して説明する。Next, embodiments of the present invention will be described with reference to the drawings.
第１図は本発明の第一の実施例の斜視図である。FIG. 1 is a perspective view of a first embodiment of the invention.
送波の電気音響変換部はフロントマス１、電歪材２、リ
アマス３よルなるランジュバン型振動子であり、受渡の
電気音響変換部はフロントマスｌに密着して接着されて
いる電歪材４である。この電器材４はランジュバン型振
動子の振動を阻害しないようフロントマス１に比べて重
量及び厚さｔ−１００分の１程度にし次ものである。The transmitting electroacoustic transducer is a Langevin type vibrator consisting of a front mass 1, an electrostrictive material 2, and a rear mass 3, and the delivery electroacoustic transducer is an electrostrictive material closely adhered to the front mass 1. It is 4. The electrical equipment 4 is approximately 1/100th of the weight and thickness t-100 of the front mass 1 so as not to inhibit the vibration of the Langevin type vibrator.
一般に、受波の電気音響変換部はエネルギー伝達量が送
波のそれに比べて小さいから、受波の電気音響変換部を
送波の電気音響変換部の撮動を阻害しないほど十分に小
さく且つ軽量にできる。例えば、通常の送受波器の入、
出力の電気容量は送波時の入力が数ワラ）（Ｗ）以上、
受波時の出力が数μＷ以下といったところであシ、シた
がって、両者の体積比を１．１０ 以上に、も容易に出
来る。In general, the amount of energy transferred by the electroacoustic transducer for receiving waves is smaller than that for transmitting waves, so the electroacoustic transducer for receiving waves is sufficiently small and lightweight so as not to interfere with the imaging of the electroacoustic transducer for transmitting waves. Can be done. For example, when a normal transducer is turned on,
The output capacitance is several watts (W) or more when transmitting waves,
Therefore, the volume ratio of the two can easily be set to 1.10 or more when the output power during reception is several μW or less.
この送波のとき、このランジュバン型振動子を振動させ
フロントマス１の放射面（電歪材４の側）よシ送波し、
受波のとき、丁度送波のときと逆の関係で電歪材４は後
背面を重くて堅い完全銅体に近いもので支えられている
ことになう、音圧全効率よく受圧する。During this wave transmission, the Langevin type vibrator is vibrated and the wave is transmitted from the radiation surface of the front mass 1 (the electrostrictive material 4 side),
When receiving waves, the electrostrictive material 4 receives the sound pressure with full efficiency, as it is supported by a heavy and hard material close to a complete copper body on its back surface, just in the opposite relationship to when transmitting waves.
この結果、送波の電気音響変換部に電気入力を能率よく
供給するために共役回路が入っていても、受波は別の電
気音響変換部で信号を得る九め共役回路の周波数特性に
関係なく広帯域の受波感度特性を得ることができる。As a result, even if a conjugate circuit is included to efficiently supply electrical input to the transmitting electroacoustic converter, the receiving wave is related to the frequency characteristics of the ninth conjugate circuit that obtains the signal in another electroacoustic converter. It is possible to obtain wideband reception sensitivity characteristics without any interference.
↓ 第２図は本発明第２の実施例の斜視図である。↓ FIG. 2 is a perspective view of a second embodiment of the present invention.
この場合、送波の電気音響変換部として円筒形の電歪材
５を使用し、その放射面（外筒面）に受渡の電気音響変
換部として９０″間隔に電歪材６ｔ−密着して接着して
いる。この送波は円筒形の電歪材５が振動子として呼吸
振動しその放射面（外筒面）よシ音波が放射される。こ
の振動は実施例１の場合と同じく電歪材６の影響は無視
できる。In this case, a cylindrical electrostrictive material 5 is used as the transmitting electroacoustic converter, and the electrostrictive material 6t is closely attached to the radiation surface (outer cylindrical surface) at 90'' intervals as the delivery electroacoustic converter. This wave transmission is caused by the cylindrical electrostrictive material 5 acting as a vibrator and breathing vibration, and a sound wave is emitted from its radiation surface (outer cylinder surface). The influence of the strained material 6 can be ignored.
一方、受波のときも第、１の実施例のときと同じ・）
ように広帯域の受波感度特性を得ることができるが、さ
らにこの実施例においては電歪材６を円筒面に９０°間
隔で配置している九め、それぞれの受波の音波到来方向
に対して方向性があ夛、この信号を処理することによっ
て誓波到来方向のヤ別の機能をもつこともできる。On the other hand, when receiving waves, it is possible to obtain the same wide-band receiving sensitivity characteristics as in the first embodiment, but in addition, in this embodiment, the electrostrictive material 6 is arranged at an angle of 90° to the cylindrical surface. The nine signals arranged at intervals have directional properties with respect to the direction of arrival of the sound wave of each received wave, and by processing this signal, it is possible to have different functions depending on the direction of arrival of the wave.
以上の実施例において、受渡の電気音響変換部の素材に
高分子′圧電材を使用すると、この素材の物理的特性が
水等の音波の伝播媒質のそれに近く、また軽くて柔かい
ことによシ、送波の電気音響変換部への影響が少なく、
より良好な送受波器の特性を得ることができる。In the above embodiments, if a polymeric piezoelectric material is used as the material for the electroacoustic transducer in the delivery section, the physical properties of this material are close to those of a sound wave propagation medium such as water, and the material is lightweight and soft. , the influence of the transmitted wave on the electroacoustic converter is small,
Better transducer characteristics can be obtained.
本発明は、以上説明し念ように、送波の電気音響変換部
の音波の放射面に受渡の電気音響変換部の電歪材等を密
着した一体構造とし九ため、小型軽量化され、ま九送波
と受波の電気音響変換部の電気入出力端を別々に設ける
ことができる几め、送波の電気音響変換部に大電力伝達
を良好にする共役回路を設けても、受波感度の周波数特
性は広帯域のも“のを得ることができる。さらに、その
放射面が円筒面のように立体的なと１！は複数の受波の
電気音響変換部を直交座標軸に配置することによシ、音
波到来方向の機能をもたせることができる等の効果があ
る。As explained above, the present invention has an integral structure in which the electrostrictive material of the delivery electroacoustic transducer is closely attached to the sound wave radiation surface of the transmitting electroacoustic transducer, resulting in a smaller size and lighter weight. 9.The electrical input and output terminals of the transmitting and receiving electroacoustic converters can be provided separately, and even if a conjugate circuit is provided in the transmitting electroacoustic converter to improve large power transmission, the receiving The frequency characteristics of the sensitivity can be obtained in a wide band.Furthermore, if the radiation surface is three-dimensional like a cylindrical surface, the electro-acoustic converter of multiple receiving waves can be arranged on orthogonal coordinate axes. It also has the advantage of being able to function as a sound wave arrival direction.
第１図は本発明の第１の実施例の斜視図、第２図は本発
明の第２の実施例の斜視図である１図において、
ｌ・・・・・・フロントマス、２・・・・・・電歪材（
送波用）、３・・・・・・リアマス、４，６・・・電歪
材（受波用）、５・・・・・・円筒電歪材、である。
率１薗
ＪFig. 1 is a perspective view of a first embodiment of the present invention, and Fig. 2 is a perspective view of a second embodiment of the present invention. ...Electrostrictive material (
(for wave transmission), 3... rear mass, 4, 6... electrostrictive material (for wave reception), 5... cylindrical electrostrictive material. Rate 1 Sono J
Claims (1)
換部を、送波用電気音響変換部の音波放射面に９！着さ
せて構成したことを特徴とする送受波器。A small electroacoustic transducer for wave reception made of a piezoelectric material or an electrostrictive material is placed on the sound wave emission surface of the electroacoustic transducer for wave transmission.9! A transducer characterized in that it is configured by wearing a
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57005649A JPH0648876B2 (en) | 1982-01-18 | 1982-01-18 | Transceiver |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57005649A JPH0648876B2 (en) | 1982-01-18 | 1982-01-18 | Transceiver |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58123300A true JPS58123300A (en) | 1983-07-22 |
| JPH0648876B2 JPH0648876B2 (en) | 1994-06-22 |
Family
ID=11616970
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57005649A Expired - Lifetime JPH0648876B2 (en) | 1982-01-18 | 1982-01-18 | Transceiver |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0648876B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581819A1 (en) * | 1985-05-10 | 1986-11-14 | France Etat Armement | Piezoelectric transducers of tonpilz type, wideband receivers and transmitters and sonar antenna made up of these transducers. |
| JPH04142484A (en) * | 1990-10-03 | 1992-05-15 | Tech Res & Dev Inst Of Japan Def Agency | Underwater transducer |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566599A (en) * | 1979-06-25 | 1981-01-23 | Philips Nv | Acoustic transducer |
-
1982
- 1982-01-18 JP JP57005649A patent/JPH0648876B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS566599A (en) * | 1979-06-25 | 1981-01-23 | Philips Nv | Acoustic transducer |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2581819A1 (en) * | 1985-05-10 | 1986-11-14 | France Etat Armement | Piezoelectric transducers of tonpilz type, wideband receivers and transmitters and sonar antenna made up of these transducers. |
| JPH04142484A (en) * | 1990-10-03 | 1992-05-15 | Tech Res & Dev Inst Of Japan Def Agency | Underwater transducer |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0648876B2 (en) | 1994-06-22 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US11774280B2 (en) | Imaging devices having piezoelectric transceivers | |
| RU2003124631A (en) | BROADBAND CONVERTER | |
| US4427912A (en) | Ultrasound transducer for enhancing signal reception in ultrasound equipment | |
| NZ523691A (en) | Two-way mechano-electrical transducer | |
| JP2003305043A (en) | Harmonic transducer element structures and properties | |
| JPS58123300A (en) | Wave transmitter and receiver | |
| CN112974202A (en) | Ultrasonic transducer | |
| JPH02309799A (en) | Transmitter-receiver | |
| JP3538817B2 (en) | Underwater transmitter / receiver capable of emitting multiple frequencies | |
| CN214864994U (en) | Ultrasonic transducer | |
| JP2006266968A (en) | Echo sounder transducer | |
| JPS62154999A (en) | Ultrasonic transmitter-receiver | |
| JPS6133318B2 (en) | ||
| JP2571175Y2 (en) | Acoustic transducer | |
| JPH01126714U (en) | ||
| JPH0474099A (en) | Electroacoustic transducer | |
| JPS62231590A (en) | Piezoelectric wave transmitter-receiver | |
| JPS5851477B2 (en) | Ultrasonic transducer array | |
| CN112073884A (en) | PVDF-based clamping type transmitting transducer | |
| JPS6216695Y2 (en) | ||
| JPS63190981U (en) | ||
| JPS62120798A (en) | Underwater ultrasonic transducer | |
| JPH0582798B2 (en) | ||
| JPS5943700A (en) | Transceiver | |
| JPS62231595A (en) | Piezoelectric wave transmitter-receiver |