JPS6349893U - - Google Patents
Info
- Publication number
- JPS6349893U JPS6349893U JP14295586U JP14295586U JPS6349893U JP S6349893 U JPS6349893 U JP S6349893U JP 14295586 U JP14295586 U JP 14295586U JP 14295586 U JP14295586 U JP 14295586U JP S6349893 U JPS6349893 U JP S6349893U
- Authority
- JP
- Japan
- Prior art keywords
- ultrasonic transducer
- variable resistor
- filter circuit
- capacitor
- magnetoresistive element
- 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
- 239000003990 capacitor Substances 0.000 claims description 2
- 238000010586 diagram Methods 0.000 description 4
Landscapes
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
Description
第１図は本考案の実施例の超音波送受波器のフ
イルタ回路の構成図、第２図は第１図のフイルタ
回路の電流値変化に伴なう抵抗の変化を示す特性
図、第３図は同回路の共振点の時間変化を示す特
性図、第４図は従来のフイルタ回路の説明に供す
る構成図である。
ＦＣ……フイルタ回路、Ｆ１，Ｆ２，Ｆ３……
ＲＣ活性フイルタ、Ｒ１，Ｒ２，Ｒ３……磁気抵
抗素子、Ｃ１，Ｃ２，Ｃ３……コンデンサ。
Fig. 1 is a configuration diagram of a filter circuit of an ultrasonic transducer according to an embodiment of the present invention, Fig. 2 is a characteristic diagram showing changes in resistance due to changes in current value of the filter circuit of Fig. 1, and Fig. 3 The figure is a characteristic diagram showing the change in resonance point of the circuit over time, and FIG. 4 is a configuration diagram for explaining a conventional filter circuit. FC...Filter circuit, F1 , F2 , F3 ...
RC active filter, R 1 , R 2 , R 3 ... magnetoresistive element, C 1 , C 2 , C 3 ... capacitor.
Claims (1)
タを多段接続して構成されるフイルタ回路を備え
た超音波送受波器において、 前記可変抵抗に磁気抵抗素子を用いたことを特
徴とする超音波送受波器。[Claims for Utility Model Registration] An ultrasonic transducer equipped with a filter circuit configured by connecting CR active filters each consisting of a capacitor and a variable resistor in multiple stages, characterized in that a magnetoresistive element is used for the variable resistor. Ultrasonic transducer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14295586U JPS6349893U (en) | 1986-09-18 | 1986-09-18 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14295586U JPS6349893U (en) | 1986-09-18 | 1986-09-18 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6349893U true JPS6349893U (en) | 1988-04-04 |
Family
ID=31052183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14295586U Pending JPS6349893U (en) | 1986-09-18 | 1986-09-18 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6349893U (en) |
-
1986
- 1986-09-18 JP JP14295586U patent/JPS6349893U/ja active Pending