JPS6468238A - Ultrasonic diagnostic apparatus - Google Patents
Ultrasonic diagnostic apparatusInfo
- Publication number
- JPS6468238A JPS6468238A JP62225317A JP22531787A JPS6468238A JP S6468238 A JPS6468238 A JP S6468238A JP 62225317 A JP62225317 A JP 62225317A JP 22531787 A JP22531787 A JP 22531787A JP S6468238 A JPS6468238 A JP S6468238A
- Authority
- JP
- Japan
- Prior art keywords
- annular array
- amplitude
- vibrators
- vibrator
- outside
- 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
Abstract
PURPOSE:To enhance resolving power in scanning and slice directions, by performing weighting increasing the amplitude of a transmitting and/receiving signal toward an outside element to each element of an annular array vibrator. CONSTITUTION:Pulsers 3a-3d form high voltage pulses from a timing pulse generating circuit 1 to drive annular array vibrators 4. At this time, weighting is applied to the vibrators 4 by an amplitude control circuit 5 so that the amplitude of the high voltage pulse becomes higher toward the outside vibrator. At the time of reception, the receiving signals received by the annular array vibrators 4 are added by an adder circuit 8 through preamplifiers 6a-6d and delay circuits 7a-7d. An mu-factor control circuit 10 performs weighting so that sensitivity becomes higher toward the receiving signal of the outside vibrator.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225317A JP2633576B2 (en) | 1987-09-10 | 1987-09-10 | Ultrasound diagnostic equipment |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62225317A JP2633576B2 (en) | 1987-09-10 | 1987-09-10 | Ultrasound diagnostic equipment |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6468238A true JPS6468238A (en) | 1989-03-14 |
JP2633576B2 JP2633576B2 (en) | 1997-07-23 |
Family
ID=16827461
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62225317A Expired - Fee Related JP2633576B2 (en) | 1987-09-10 | 1987-09-10 | Ultrasound diagnostic equipment |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2633576B2 (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011072721A (en) * | 2009-10-01 | 2011-04-14 | Canon Inc | Measuring instrument |
Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5657972A (en) * | 1979-09-26 | 1981-05-20 | Philips Nv | Ultrasonic toner diagnosing apparatus |
JPS58216044A (en) * | 1982-06-11 | 1983-12-15 | 株式会社東芝 | Ultrasonic diagnostic apparatus |
JPS5985973A (en) * | 1982-11-08 | 1984-05-18 | Hitachi Medical Corp | Multiring electronic focusing type ultrasonic apparatus |
-
1987
- 1987-09-10 JP JP62225317A patent/JP2633576B2/en not_active Expired - Fee Related
Patent Citations (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5657972A (en) * | 1979-09-26 | 1981-05-20 | Philips Nv | Ultrasonic toner diagnosing apparatus |
JPS58216044A (en) * | 1982-06-11 | 1983-12-15 | 株式会社東芝 | Ultrasonic diagnostic apparatus |
JPS5985973A (en) * | 1982-11-08 | 1984-05-18 | Hitachi Medical Corp | Multiring electronic focusing type ultrasonic apparatus |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2011072721A (en) * | 2009-10-01 | 2011-04-14 | Canon Inc | Measuring instrument |
Also Published As
Publication number | Publication date |
---|---|
JP2633576B2 (en) | 1997-07-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
LAPS | Cancellation because of no payment of annual fees |