JPH0269756U - - Google Patents
Info
- Publication number
- JPH0269756U JPH0269756U JP14845688U JP14845688U JPH0269756U JP H0269756 U JPH0269756 U JP H0269756U JP 14845688 U JP14845688 U JP 14845688U JP 14845688 U JP14845688 U JP 14845688U JP H0269756 U JPH0269756 U JP H0269756U
- Authority
- JP
- Japan
- Prior art keywords
- piezoelectric element
- transmitter
- receiver
- ultrasonic
- filter
- 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
- 238000007689 inspection Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 4
- 239000000523 sample Substances 0.000 description 2
- 238000002604 ultrasonography Methods 0.000 description 1
Landscapes
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Description
第１図は本考案の実施例に係る超音波顕微鏡の
系統図、第２図および第３図はそれぞれ第１図に
示す整合器の第１の具体例および第２の具体例の
回路図、第４図は周波数に対する反射係数を示す
グラフ、第５図は従来の超音波顕微鏡の系統図、
第６図は送信器の出力信号の波形図である。
１……試料、２……超音波探触子、２ａ……圧
電素子、２ｂ……音響レンズ、４……送信器、５
……受信器、６……分配器、８……整合器、Ｒ１
〜Ｒ３，Ｒ１′〜Ｒ３′，Ｒ４〜Ｒ６，Ｒ４′〜
Ｒ６′……抵抗器、Ｆ……フイルタ。
FIG. 1 is a system diagram of an ultrasonic microscope according to an embodiment of the present invention, and FIGS. 2 and 3 are circuit diagrams of a first specific example and a second specific example of the matching device shown in FIG. 1, respectively. Figure 4 is a graph showing the reflection coefficient versus frequency, Figure 5 is a system diagram of a conventional ultrasound microscope,
FIG. 6 is a waveform diagram of the output signal of the transmitter. 1... Sample, 2... Ultrasonic probe, 2a... Piezoelectric element, 2b... Acoustic lens, 4... Transmitter, 5
... Receiver, 6 ... Distributor, 8 ... Matching device, R 1
〜R 3 , R 1 ′〜R 3 ′, R 4 〜R 6 , R 4 ′〜
R6 '...Resistor, F...Filter.
Claims (1)
周波信号により励振されて超音波を放射するとと
もにその反射波を電気信号に変換する圧電素子と
、超音波を集束するレンズと、前記反射波の電気
信号を受信して所定の処理を行なう受信器と、前
記送信器および前記受信器と前記圧電素子との間
に介在する分配器とを備えた超音波検査装置にお
いて、前記圧電素子と前記分配器との間に、前記
圧電素子の使用周波数と同じ共振周波数のフイル
タ、およびこのフイルタの両側に接続されたそれ
ぞれ３つの抵抗器の組合せより成るアツテネータ
で構成された整合器を設けたことを特徴とする超
音波検査装置。 a transmitter that outputs a predetermined high-frequency signal; a piezoelectric element that is excited by the high-frequency signal to emit ultrasonic waves and converts the reflected waves into electrical signals; a lens that focuses the ultrasonic waves; An ultrasonic inspection apparatus comprising a receiver that receives a signal and performs predetermined processing, and a distributor interposed between the transmitter, the receiver, and the piezoelectric element, the piezoelectric element and the distributor A matching device is provided between the piezoelectric element and the piezoelectric element, and includes a filter having the same resonance frequency as the operating frequency of the piezoelectric element, and an attenuator each consisting of a combination of three resistors connected to both sides of the filter. Ultrasonic testing equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14845688U JPH0269756U (en) | 1988-11-16 | 1988-11-16 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP14845688U JPH0269756U (en) | 1988-11-16 | 1988-11-16 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0269756U true JPH0269756U (en) | 1990-05-28 |
Family
ID=31419800
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP14845688U Pending JPH0269756U (en) | 1988-11-16 | 1988-11-16 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0269756U (en) |
-
1988
- 1988-11-16 JP JP14845688U patent/JPH0269756U/ja active Pending
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