JPS6142906U - Focal length control device for ultrasound diagnostic equipment - Google Patents
Focal length control device for ultrasound diagnostic equipmentInfo
- Publication number
- JPS6142906U JPS6142906U JP11012785U JP11012785U JPS6142906U JP S6142906 U JPS6142906 U JP S6142906U JP 11012785 U JP11012785 U JP 11012785U JP 11012785 U JP11012785 U JP 11012785U JP S6142906 U JPS6142906 U JP S6142906U
- Authority
- JP
- Japan
- Prior art keywords
- focal length
- control device
- length control
- diagnostic equipment
- ultrasound diagnostic
- 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.)
- Granted
Links
Landscapes
- Ultra Sonic Daignosis Equipment (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図はこの考案の一実施例を示すブロック図、第２図
はアレイ・トランスデューサを示す斜視図、第３図は超
音波ビームの偏向を説明するための模式図、第４図は超
音波ビームの集束を説明するための模式図である。
１・・・引算器、２，８・・・カウンタ、３，５・・・
乗算器、４・・・レジスタ、６・・・記憶回路、７・・
・除算器、９・・・遅延回路。Fig. 1 is a block diagram showing an embodiment of this invention, Fig. 2 is a perspective view showing an array transducer, Fig. 3 is a schematic diagram for explaining the deflection of an ultrasonic beam, and Fig. 4 is an ultrasonic wave. FIG. 3 is a schematic diagram for explaining beam focusing. 1...Subtractor, 2,8...Counter, 3,5...
Multiplier, 4...Register, 6...Storage circuit, 7...
- Divider, 9...delay circuit.
Claims (1)
遅延回路と、各振動子の間隔をｄ、音速をＶとしたとき
の各偏向角θ０に関する ｄ２（１−００２）／ｖＱＴ の各値を予め記憶している記憶回路と、振動子の番号ｉ
を発生するカウンタと、所望の焦点距離Ｒｆを設定する
装置と、振動子の総数をＮとしたとき Ｘ＝↓｛へ％市−：（ｉ− １）＋１， の計算を行なう演算回路とを有し、前記Ｘの部分（Ｘ）
により前記遅延回路の遅延時間を選択し、− （Ｘ）
Ｑアの集束遅延時間を得るようにした超音波診断装置の
焦点距離制御装置。[Claims for Utility Model Registration] A delay circuit that can change the delay time for each quantized delay time Q1, and d2 (1- 002)/vQT and a memory circuit that stores each value in advance, and a vibrator number i.
A counter that generates , a device that sets the desired focal length Rf, and an arithmetic circuit that calculates, when the total number of oscillators is N, and the portion of said X (X)
Select the delay time of the delay circuit by - (X)
A focal length control device for an ultrasonic diagnostic apparatus that obtains a focusing delay time of Qa.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11012785U JPS6142906U (en) | 1985-07-18 | 1985-07-18 | Focal length control device for ultrasound diagnostic equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP11012785U JPS6142906U (en) | 1985-07-18 | 1985-07-18 | Focal length control device for ultrasound diagnostic equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6142906U true JPS6142906U (en) | 1986-03-20 |
| JPS6232005Y2 JPS6232005Y2 (en) | 1987-08-17 |
Family
ID=30669257
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11012785U Granted JPS6142906U (en) | 1985-07-18 | 1985-07-18 | Focal length control device for ultrasound diagnostic equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6142906U (en) |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220058A (en) * | 1975-08-07 | 1977-02-15 | Varian Associates | Signal processing apparatus for ultrasonic image formation |
| JPS52113623A (en) * | 1976-03-19 | 1977-09-22 | Hitachi Medical Corp | Electronic scanning ultrasonic deflection system |
-
1985
- 1985-07-18 JP JP11012785U patent/JPS6142906U/en active Granted
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5220058A (en) * | 1975-08-07 | 1977-02-15 | Varian Associates | Signal processing apparatus for ultrasonic image formation |
| JPS52113623A (en) * | 1976-03-19 | 1977-09-22 | Hitachi Medical Corp | Electronic scanning ultrasonic deflection system |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6232005Y2 (en) | 1987-08-17 |
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