JPS6284297U - - Google Patents
Info
- Publication number
- JPS6284297U JPS6284297U JP17323785U JP17323785U JPS6284297U JP S6284297 U JPS6284297 U JP S6284297U JP 17323785 U JP17323785 U JP 17323785U JP 17323785 U JP17323785 U JP 17323785U JP S6284297 U JPS6284297 U JP S6284297U
- Authority
- JP
- Japan
- Prior art keywords
- base
- bending
- bending vibrator
- node line
- transducer
- 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.)
- Pending
Links
- 239000011358 absorbing material Substances 0.000 claims description 2
- 238000005452 bending Methods 0.000 claims 4
- 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図および第
９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、４０は吸音材を示
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 the receiving sensitivity and the peak frequency of the 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. FIGS. 8 and 9 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 represents an additional resonator, 22 represents a recess, and 40 represents a sound absorbing material.
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
前記ベース上に吸音材を設け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. An ultrasonic transducer comprising: a sound absorbing material provided on the base outside the node line of the bending transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17323785U JPS6284297U (en) | 1985-11-11 | 1985-11-11 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17323785U JPS6284297U (en) | 1985-11-11 | 1985-11-11 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6284297U true JPS6284297U (en) | 1987-05-29 |
Family
ID=31110510
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17323785U Pending JPS6284297U (en) | 1985-11-11 | 1985-11-11 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6284297U (en) |
-
1985
- 1985-11-11 JP JP17323785U patent/JPS6284297U/ja active Pending
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