JPS61143398U - - Google Patents
Info
- Publication number
- JPS61143398U JPS61143398U JP2529485U JP2529485U JPS61143398U JP S61143398 U JPS61143398 U JP S61143398U JP 2529485 U JP2529485 U JP 2529485U JP 2529485 U JP2529485 U JP 2529485U JP S61143398 U JPS61143398 U JP S61143398U
- Authority
- JP
- Japan
- Prior art keywords
- additional resonator
- resonator
- bimorph
- additional
- maximum diameter
- 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
- 238000005452 bending Methods 0.000 claims 2
- 230000005540 biological transmission Effects 0.000 claims 1
- 239000007769 metal material Substances 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 6
- 230000035945 sensitivity Effects 0.000 description 2
- 239000002131 composite material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Piezo-Electric Transducers For Audible Bands (AREA)
Description
第１図はこの考案の一実施例を示す断面図であ
る。第２図および第３図はバイモルフ振動子およ
び付加共振子からなる複合振動体の振動モードを
図解的に示した図である。第４図および第５図は
実験によつて求めた付加共振子の高さおよび直径
を変えた場合の共振周波数との関係を示す図であ
る。第６図はこの実施例のインピーダンス特性を
示す図である。第７図はこの実施例の送波感度の
周波数特性を示す図である。第８図はこの実施例
の受波感度の周波数を示す図である。第９図は従
来の金属製付加共振子を用いたもののインピーダ
ンス特性を示す図である
図において、１０は超音波送受波器、１６はバ
イモルフ振動子、１８は付加共振子を示す。
FIG. 1 is a sectional view showing an embodiment of this invention. FIGS. 2 and 3 are diagrams schematically showing the vibration modes of a composite vibrator consisting of a bimorph vibrator and an additional resonator. FIGS. 4 and 5 are diagrams showing the relationship with the resonant frequency when the height and diameter of the additional resonator are changed, which were determined through experiments. FIG. 6 is a diagram showing the impedance characteristics of this embodiment. FIG. 7 is a diagram showing the frequency characteristics of the transmitting sensitivity of this embodiment. FIG. 8 is a diagram showing frequencies of reception sensitivity in this embodiment. FIG. 9 is a diagram showing the impedance characteristics of a device using a conventional metal additional resonator. In the figure, 10 is an ultrasonic transducer, 16 is a bimorph vibrator, and 18 is an additional resonator.
Claims (1)
振子とを含み、バイモルフ振動子がベンデイング
振動を生じかつ付加共振子がベンデイング振動ま
たはピストン振動を生じる、超音波送受波器にお
いて、 前記付加共振子が金属材料からなり、 前記付加共振子の最大直径が前記バイモルフ振
動子のノード径とほぼ等しく選ばれ、かつ付加共
振子の高さがその最大直径の０．０５ないし０．
１５倍に選ばれていることを特徴とする、超音波
送受波器。[Claims for Utility Model Registration] Ultrasonic wave transmission and reception including a bimorph vibrator and an additional resonator placed thereon, where the bimorph vibrator generates bending vibration and the additional resonator generates bending vibration or piston vibration. In the device, the additional resonator is made of a metal material, the maximum diameter of the additional resonator is selected to be approximately equal to the node diameter of the bimorph resonator, and the height of the additional resonator is 0.05 to 0.05 of the maximum diameter. 0.
An ultrasonic transducer characterized by being selected as 15 times more powerful.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2529485U JPH0241999Y2 (en) | 1985-02-22 | 1985-02-22 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2529485U JPH0241999Y2 (en) | 1985-02-22 | 1985-02-22 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61143398U true JPS61143398U (en) | 1986-09-04 |
| JPH0241999Y2 JPH0241999Y2 (en) | 1990-11-08 |
Family
ID=30520235
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2529485U Expired JPH0241999Y2 (en) | 1985-02-22 | 1985-02-22 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0241999Y2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009055458A (en) * | 2007-08-28 | 2009-03-12 | Nippon Ceramic Co Ltd | Ultrasonic wave transmitting/receiving apparatus |
-
1985
- 1985-02-22 JP JP2529485U patent/JPH0241999Y2/ja not_active Expired
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2009055458A (en) * | 2007-08-28 | 2009-03-12 | Nippon Ceramic Co Ltd | Ultrasonic wave transmitting/receiving apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0241999Y2 (en) | 1990-11-08 |
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