JPS57100305A - Method for generating ultrasonic wave signal - Google Patents
Method for generating ultrasonic wave signalInfo
- Publication number
- JPS57100305A JPS57100305A JP17523880A JP17523880A JPS57100305A JP S57100305 A JPS57100305 A JP S57100305A JP 17523880 A JP17523880 A JP 17523880A JP 17523880 A JP17523880 A JP 17523880A JP S57100305 A JPS57100305 A JP S57100305A
- Authority
- JP
- Japan
- Prior art keywords
- coil
- columnar body
- ultrasonic wave
- metallic columnar
- outer side
- 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
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10K—SOUND-PRODUCING DEVICES; METHODS OR DEVICES FOR PROTECTING AGAINST, OR FOR DAMPING, NOISE OR OTHER ACOUSTIC WAVES IN GENERAL; ACOUSTICS NOT OTHERWISE PROVIDED FOR
- G10K15/00—Acoustics not otherwise provided for
- G10K15/04—Sound-producing devices
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Multimedia (AREA)
- Length Measuring Devices Characterised By Use Of Acoustic Means (AREA)
- Transducers For Ultrasonic Waves (AREA)
Abstract
PURPOSE:To generate ultrasonic wave signals of large amplitudes and a uniform distribution directly in a metallic columnar body by flowing electric current instantaneously to the coil made of an insulated covered conductor wound on the outer side of said body. CONSTITUTION:A coil is formed by winding an insulated covered conductor on the outer side of a metallic columnar body of a cylinder or bar shape and electric current is flowed instantaneously to this coil. The metallic columnar body is deformed in a radial direction by the effect of the flux generated at that time, whereby ultrasonic wave signals are generated. For example, an insulated and covered conductor is wound on the outer side of a metallic columnar body 1 to form a coil 2. Both ends of such coil are connected via a switch 3 to a capacitor 4. On the other hand, an electric power source 5 is connected to a capacitor 4 via a rectifier 6 to charge the same. When electric current is flowed to the coil by closing the switch 3, the effect of the flux generated at that time forces the metallic columnar body to be deformed in a radial direction by magnetic force if it is a ferromagnetic material and by the effect of eddy current if it is a nonmagnetic material, thereby generating ultrasonic wave signals.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523880A JPS57100305A (en) | 1980-12-13 | 1980-12-13 | Method for generating ultrasonic wave signal |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP17523880A JPS57100305A (en) | 1980-12-13 | 1980-12-13 | Method for generating ultrasonic wave signal |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS57100305A true JPS57100305A (en) | 1982-06-22 |
Family
ID=15992668
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP17523880A Pending JPS57100305A (en) | 1980-12-13 | 1980-12-13 | Method for generating ultrasonic wave signal |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS57100305A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4859843B2 (en) * | 2004-12-16 | 2012-01-25 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | Circuit and method for generating current pulses in a waveguide |
-
1980
- 1980-12-13 JP JP17523880A patent/JPS57100305A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP4859843B2 (en) * | 2004-12-16 | 2012-01-25 | フラウンホッファー−ゲゼルシャフト ツァ フェルダールング デァ アンゲヴァンテン フォアシュンク エー．ファオ | Circuit and method for generating current pulses in a waveguide |
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