JPS6461678A - Driving method for asymmetrical langevin type vibrator - Google Patents
Driving method for asymmetrical langevin type vibratorInfo
- Publication number
- JPS6461678A JPS6461678A JP21979287A JP21979287A JPS6461678A JP S6461678 A JPS6461678 A JP S6461678A JP 21979287 A JP21979287 A JP 21979287A JP 21979287 A JP21979287 A JP 21979287A JP S6461678 A JPS6461678 A JP S6461678A
- Authority
- JP
- Japan
- Prior art keywords
- metallic block
- length
- resonance frequency
- short
- long
- 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
- Measurement Of Velocity Or Position Using Acoustic Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To obtain ultrasonic waves of >=2 frequencies by varying the length of the metallic block of the titled asymmetric Langevin type vibrator and enabling driving at resonance frequency between the length of a short-sized metallic block and the vibrator and the length of a long-sized metallic block and the vibrator. CONSTITUTION:One metallic block 9 is short and the other metallic block 10 is long; and screws 5a and 5b of a bolt 5 are screwed in the screw holes of short metal 9 and long metal 10 and fixed. When an AC voltage is applied between terminals 3 and 4 of this asymmetrical Langevin type vibrator from an AC power source 11, ultrasonic waves of >=2 frequencies such as the resonance frequency of the length containing the short metallic block 9 and vibrators 1 and 2, the resonance frequency of length including the long metallic block 10 and vibrators 1 and 2, and the resonance frequency of the overall length are easily generated at a low cost.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62219792A JP2585017B2 (en) | 1987-09-02 | 1987-09-02 | Driving method of asymmetric Langevin type vibrator |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP62219792A JP2585017B2 (en) | 1987-09-02 | 1987-09-02 | Driving method of asymmetric Langevin type vibrator |
Publications (2)
Publication Number | Publication Date |
---|---|
JPS6461678A true JPS6461678A (en) | 1989-03-08 |
JP2585017B2 JP2585017B2 (en) | 1997-02-26 |
Family
ID=16741096
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP62219792A Expired - Lifetime JP2585017B2 (en) | 1987-09-02 | 1987-09-02 | Driving method of asymmetric Langevin type vibrator |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2585017B2 (en) |
-
1987
- 1987-09-02 JP JP62219792A patent/JP2585017B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JP2585017B2 (en) | 1997-02-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
R250 | Receipt of annual fees |
Free format text: JAPANESE INTERMEDIATE CODE: R250 |
|
EXPY | Cancellation because of completion of term | ||
FPAY | Renewal fee payment (prs date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20071121 Year of fee payment: 11 |