JPH042121U - - Google Patents
Info
- Publication number
- JPH042121U JPH042121U JP4179490U JP4179490U JPH042121U JP H042121 U JPH042121 U JP H042121U JP 4179490 U JP4179490 U JP 4179490U JP 4179490 U JP4179490 U JP 4179490U JP H042121 U JPH042121 U JP H042121U
- Authority
- JP
- Japan
- Prior art keywords
- electrodes
- transducer
- electrode forming
- forming portions
- medium
- 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
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Piezo-Electric Or Mechanical Vibrators, Or Delay Or Filter Circuits (AREA)
Description
第１図は本考案の一実施例に係る櫛形フイルタ
の説明図、第２図は第１図に示す櫛形フイルタの
組立て説明、第３図は櫛形フイルタの周波数特性
グラフの調整状態を示す線図、第４図は第１図及
び第５図に示す櫛形フイルタの周波数特性を示す
線図、第５図は従来の櫛形フイルタを示す構成図
である。
１……櫛形フイルタ、２……切欠面、３……ト
ランスジユーサ、１１……超音波遅延媒体、１４
……主面、１６……ゲート、３１，４１……第１
、第２の電極、３２，４２……第３、第４の電極
。
Fig. 1 is an explanatory diagram of a comb filter according to an embodiment of the present invention, Fig. 2 is an explanation of the assembly of the comb filter shown in Fig. 1, and Fig. 3 is a diagram showing the adjustment state of the frequency characteristic graph of the comb filter. , FIG. 4 is a diagram showing the frequency characteristics of the comb filter shown in FIGS. 1 and 5, and FIG. 5 is a configuration diagram showing a conventional comb filter. DESCRIPTION OF SYMBOLS 1... Comb filter, 2... Notch surface, 3... Transducer, 11... Ultrasonic delay medium, 14
...Main surface, 16...Gate, 31, 41...1st
, second electrode, 32, 42... third, fourth electrode.
Claims (1)
角度に切り欠いて切欠面を形成した反射型超音波
遅延媒体の前記切欠面に、切欠面の長さ方向に沿
つて長さの異なる第１及び第２の電極を非電極形
成部を介して設け、その上部に一枚の入出力共通
トランスジユーサを固着し、このトランスジユー
サの上面に第３及び第４の電極を非電極形成部を
介して設け、前記各非電極形成部がそれぞれトラ
ンスジユーサの上面、下面に対して対向しないよ
うに配されていることを特徴とする櫛形フイルタ
。 A cutout surface of a reflective ultrasonic delay medium is formed by cutting out a corner of a plate-shaped medium with a rectangular main surface at an angle of 45 degrees. Different first and second electrodes are provided via a non-electrode forming part, a single input/output common transducer is fixed on top of the first and second electrodes, and third and fourth electrodes are provided on the top surface of this transducer. A comb-shaped filter, characterized in that the non-electrode forming portions are provided through electrode forming portions and are arranged so as not to face the upper and lower surfaces of the transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4179490U JPH042121U (en) | 1990-04-19 | 1990-04-19 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP4179490U JPH042121U (en) | 1990-04-19 | 1990-04-19 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH042121U true JPH042121U (en) | 1992-01-09 |
Family
ID=31552771
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP4179490U Pending JPH042121U (en) | 1990-04-19 | 1990-04-19 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH042121U (en) |
-
1990
- 1990-04-19 JP JP4179490U patent/JPH042121U/ja active Pending
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