JPS57185792A - Ultrasonic wave probe - Google Patents
Ultrasonic wave probeInfo
- Publication number
- JPS57185792A JPS57185792A JP56070977A JP7097781A JPS57185792A JP S57185792 A JPS57185792 A JP S57185792A JP 56070977 A JP56070977 A JP 56070977A JP 7097781 A JP7097781 A JP 7097781A JP S57185792 A JPS57185792 A JP S57185792A
- Authority
- JP
- Japan
- Prior art keywords
- center
- transmission speed
- circumference
- lens member
- acoustic
- 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
- 239000000523 sample Substances 0.000 title abstract 2
- 230000005540 biological transmission Effects 0.000 abstract 3
- 239000000463 material Substances 0.000 abstract 1
- 230000002250 progressing effect Effects 0.000 abstract 1
- 239000011347 resin Substances 0.000 abstract 1
- 229920005989 resin Polymers 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B06—GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS IN GENERAL
- B06B—METHODS OR APPARATUS FOR GENERATING OR TRANSMITTING MECHANICAL VIBRATIONS OF INFRASONIC, SONIC, OR ULTRASONIC FREQUENCY, e.g. FOR PERFORMING MECHANICAL WORK IN GENERAL
- B06B1/00—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency
- B06B1/02—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy
- B06B1/06—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction
- B06B1/0607—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements
- B06B1/0622—Methods or apparatus for generating mechanical vibrations of infrasonic, sonic, or ultrasonic frequency making use of electrical energy operating with piezoelectric effect or with electrostriction using multiple elements on one surface
- B06B1/0625—Annular array
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Ultra Sonic Daignosis Equipment (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
PURPOSE:To improve the azimuth resolution through the convergence of ultrasonic waves, by using a resin member with excellent characteristics as the type of materials of an acoustic lens member and providing a lens in which the acoustic transmission speed is increased toward the external direction. CONSTITUTION:A cylindrical oscillator 2 and an acoustic lens member 5 are fitted to the bottom of a cylindrical single probe main body 1. A plurality of ring layers 5b, 5c, 5d...5n are multiplexedly located on a concentric circle for the lens member 5 by taking a center layer 5a of a small disc as a center and constituted so that the sound transmission speed at the center layer 5a is the slowest and sequentially faster toward the circumference. When the ultrasonic wave transmitted from the oscillator 2 progresses in a living body via an acoustic lens, since the sound transmission speed at the center layer 5a is slow and it becomes sequentially faster toward the circumference, a beam BM1 passing through the external circumference progresses faster and the slowest at the center, howing the wave plane w in the figure. Thus, the ultrasonic waves progressing in the living body is converged to a point O.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56070977A JPS57185792A (en) | 1981-05-12 | 1981-05-12 | Ultrasonic wave probe |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP56070977A JPS57185792A (en) | 1981-05-12 | 1981-05-12 | Ultrasonic wave probe |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57185792A true JPS57185792A (en) | 1982-11-16 |
Family
ID=13447086
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP56070977A Pending JPS57185792A (en) | 1981-05-12 | 1981-05-12 | Ultrasonic wave probe |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57185792A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62231594A (en) * | 1986-03-31 | 1987-10-12 | Ngk Spark Plug Co Ltd | Piezoelectric wave transmitter-receiver |
-
1981
- 1981-05-12 JP JP56070977A patent/JPS57185792A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS62231594A (en) * | 1986-03-31 | 1987-10-12 | Ngk Spark Plug Co Ltd | Piezoelectric wave transmitter-receiver |
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