JPS58119297U - Ultrasonic transducer using polymer piezoelectric film - Google Patents
Ultrasonic transducer using polymer piezoelectric filmInfo
- Publication number
- JPS58119297U JPS58119297U JP1451582U JP1451582U JPS58119297U JP S58119297 U JPS58119297 U JP S58119297U JP 1451582 U JP1451582 U JP 1451582U JP 1451582 U JP1451582 U JP 1451582U JP S58119297 U JPS58119297 U JP S58119297U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic transducer
- piezoelectric film
- parallel
- polymer piezoelectric
- small
- 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
Landscapes
- Transducers For Ultrasonic Waves (AREA)
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
第１図は、中心周波数２．２５ ＭＨｚのＰＺＴを用い
た電気音響変換素子の水中駆動時の周波数と直゛ 列
インピーダンス特性の関係を示す図、第２図は、ＰＶＤ
Ｆからなる高分子圧電膜を用いた電気音響変換素子の水
中駆動時の周波数と直列インピーダンス特性の関係を示
す図、第３図は、本考案に係る超音障トランスデユーサ
−の一実施例を示す概略構成図、第４図は、第３図に示
した本考案に係る超音波トランスデユーサ−を水中駆動
した時の入射信号の応答時間特性を示す図、第５図は、
高分子圧電膜からなる電気音響変換素子を有する超音波
トランスデユーサ−を整合回路なしで直接水中パルス駆
動した時の入射信号の応答時間特性を示す図、第６図は
、ＰＺＴを電気音響変換素子とする超音波トランスデユ
ーサ−を水中駆動した時の入射信号の応答時間特性を示
す図、第７図は、第３図に示した本考案のシングル型超
音波トランスデユーサ−のより具体的な構成を示す縦断
面図で坐る。
１０・・・・・・電気音響変換素子、１１・・・・・・
駆動電源、１２・・・・・・ケーブル、１３・・・・・
・コネクター、１４・・・・・・変成器、１５・・・・
・・インダクター。
第２図
写（２４Figure 1 is a diagram showing the relationship between frequency and series impedance characteristics when an electroacoustic transducer using PZT with a center frequency of 2.25 MHz is driven underwater.
FIG. 3 is a diagram showing the relationship between frequency and series impedance characteristics when an electroacoustic transducer using a polymer piezoelectric film made of F is driven underwater. FIG. 4 is a diagram showing the response time characteristics of an incident signal when the ultrasonic transducer according to the present invention shown in FIG. 3 is driven underwater, and FIG.
Figure 6 shows the response time characteristics of an incident signal when an ultrasonic transducer having an electroacoustic transducer made of a piezoelectric polymer film is directly pulse-driven underwater without a matching circuit. FIG. 7 is a diagram showing the response time characteristics of an incident signal when the ultrasonic transducer as an element is driven underwater. Sitting in longitudinal section showing the configuration. 10... Electro-acoustic conversion element, 11...
Drive power supply, 12... Cable, 13...
・Connector, 14...Transformer, 15...
...Inductor. Second illustration (24
Claims (1)
変換素子を有してなる超音波トランスデユーサ−におい
て、上記素子の構成によって定まる動作中心周波数にお
ける該素子の並列抵抗を７Ｒｐ、および並列容量性リア
クタンスをＸｐとするとき、上記素子とケーブルを含む
駆動電源との間に、上記素子の並列抵抗Ｒｐと上記素子
のインピーダンスとを整合−させるための変成器を設け
、さらに上記変成器の２次側で、かつ、上記素子の直前
な上記並列容量性リアクタンスＸｐと実質的に等価な誘
導性リアクタンスを並列に付加したことを特徴とする高
分子圧電膜を用いた超音波トランスデユーサー。In an ultrasonic transducer having an electroacoustic transducer including a small-diameter or small-area polymeric piezoelectric film, the parallel resistance of the element at the operating center frequency determined by the configuration of the element is 7Rp, and When the parallel capacitive reactance is Xp, a transformer is provided between the element and the drive power source including the cable to match the parallel resistance Rp of the element and the impedance of the element, An ultrasonic transducer using a polymer piezoelectric film, characterized in that an inductive reactance substantially equivalent to the parallel capacitive reactance Xp is added in parallel on the secondary side of the device and immediately before the element. .
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1451582U JPS58119297U (en) | 1982-02-04 | 1982-02-04 | Ultrasonic transducer using polymer piezoelectric film |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1451582U JPS58119297U (en) | 1982-02-04 | 1982-02-04 | Ultrasonic transducer using polymer piezoelectric film |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS58119297U true JPS58119297U (en) | 1983-08-13 |
Family
ID=30026981
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1451582U Pending JPS58119297U (en) | 1982-02-04 | 1982-02-04 | Ultrasonic transducer using polymer piezoelectric film |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58119297U (en) |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49133017A (en) * | 1972-11-17 | 1974-12-20 |
-
1982
- 1982-02-04 JP JP1451582U patent/JPS58119297U/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS49133017A (en) * | 1972-11-17 | 1974-12-20 |
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