JPS6284298U - - Google Patents
Info
- Publication number
- JPS6284298U JPS6284298U JP17323885U JP17323885U JPS6284298U JP S6284298 U JPS6284298 U JP S6284298U JP 17323885 U JP17323885 U JP 17323885U JP 17323885 U JP17323885 U JP 17323885U JP S6284298 U JPS6284298 U JP S6284298U
- Authority
- JP
- Japan
- Prior art keywords
- base
- transducer
- bending vibrator
- flexural
- height
- 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 3
- 230000035945 sensitivity Effects 0.000 description 3
- 230000005540 biological transmission Effects 0.000 description 2
Description
第１図はこの考案の一実施例を示す破断図であ
る。第２図はこの実施例に用いられるベースを示
す図解図であり、第２図Ａはその上面図、第２図
Ｂは半断面図である。第３図および第４図は、そ
れぞれ、実施例において、温度の変化に対する受
波感度および送波音圧のピーク周波数の変化を示
すグラフである。第５図および第６図は、それぞ
れ、受波感度および送波音圧の温度特性を従来例
と比較して示すグラフである。第７図はベースの
他の例を示す図解図であり、第７図Ａはその上面
図、第７図Ｂは半断面図である。第８図はベース
のさらに他の例を示す図解図であり、第８図Ａは
その上面図、第８図Ｂは半断面図である。第９図
および第１０図は、それぞれ、従来の超音波送受
波器の温度の変化に対する受波感度および送波音
圧（ピーク周波数）の変化を示すグラフである。
図において、１０は超音波送受波器、１２はベ
ース、１４は突起、１８はユニモルフ振動子、２
０は付加共振子、２２は凹部を示す。
FIG. 1 is a cutaway view showing an embodiment of this invention. FIG. 2 is an illustrative view showing the base used in this embodiment, FIG. 2A is a top view thereof, and FIG. 2B is a half sectional view thereof. FIG. 3 and FIG. 4 are graphs showing changes in reception sensitivity and peak frequency of transmitted sound pressure with respect to changes in temperature, respectively, in the example. FIGS. 5 and 6 are graphs showing the temperature characteristics of reception sensitivity and transmission sound pressure, respectively, in comparison with the conventional example. FIG. 7 is an illustrative view showing another example of the base, with FIG. 7A being a top view and FIG. 7B being a half sectional view. FIG. 8 is an illustrative view showing still another example of the base, with FIG. 8A being a top view and FIG. 8B being a half sectional view. FIGS. 9 and 10 are graphs showing changes in reception sensitivity and transmission sound pressure (peak frequency), respectively, with respect to changes in temperature of a conventional ultrasonic transducer. In the figure, 10 is an ultrasonic transducer, 12 is a base, 14 is a protrusion, 18 is a unimorph transducer, 2
0 indicates an additional resonator, and 22 indicates a recess.
Claims (1)
子上に付加共振子を固着し、前記ベースの前記屈
曲振動子のノードラインの内側に所定の深さの凹
部を形成した超音波送受波器において、 前記屈曲振動子のノードラインの外側における
前記ベースの高さと、前記屈曲振動子の下端面の
高さとの差を使用波長の１／８以内にしたことを
特徴とする、超音波送受波器。[Claims for Utility Model Registration] A bending vibrator is supported on a base, an additional resonator is fixed on the bending vibrator, and a recess of a predetermined depth is formed inside the node line of the bending vibrator on the base. In the ultrasonic transducer formed with a flexural transducer, the difference between the height of the base outside the node line of the flexural transducer and the height of the lower end surface of the flexural transducer is within 1/8 of the wavelength used. Features: Ultrasonic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17323885U JPH0427280Y2 (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17323885U JPH0427280Y2 (en) | 1985-11-11 | 1985-11-11 |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6284298U true JPS6284298U (en) | 1987-05-29 |
| JPH0427280Y2 JPH0427280Y2 (en) | 1992-06-30 |
Family
ID=31110512
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17323885U Expired JPH0427280Y2 (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0427280Y2 (en) |
-
1985
- 1985-11-11 JP JP17323885U patent/JPH0427280Y2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0427280Y2 (en) | 1992-06-30 |
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