JPS6450924A - Vibration tester - Google Patents
Vibration testerInfo
- Publication number
- JPS6450924A JPS6450924A JP62209013A JP20901387A JPS6450924A JP S6450924 A JPS6450924 A JP S6450924A JP 62209013 A JP62209013 A JP 62209013A JP 20901387 A JP20901387 A JP 20901387A JP S6450924 A JPS6450924 A JP S6450924A
- Authority
- JP
- Japan
- Prior art keywords
- acceleration
- input signal
- control
- acceleration input
- vibration table
- 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
- Vibration Prevention Devices (AREA)
- Investigating Strength Of Materials By Application Of Mechanical Stress (AREA)
Abstract
PURPOSE:To make the reproducibility of acceleration excellent by a method wherein an acceleration input signal is operated directly to control the acceleration of a vibration table while a signal component of the acceleration input signal not containing a frequency spectrum is operated to control the central position of the vibration table. CONSTITUTION:A displacement control mechanism controls a servo valve 6 of a an actuator by means of outputs of a displacement amplifier 10 and a table position setting unit 11, so as to maintain a vibration table in a position corresponding to an output voltage of the setting unit 11. On the other side, an acceleration control mechanism controls the servo valve 6 by means of an acceleration input signal and an output of an acceleration amplifier 13, so as to give the vibration table the acceleration corresponding to the acceleration input signal. Moreover, LPF 15 and HPF 18 are provided for the displacement control mechanism and the acceleration control mechanism respectively, and thereby a cutoff frequency is set so that the two control systems may not interfere with each other. By this constitution, the acceleration input signal is operated directly to control the acceleration and the acceleration input signal is reproduced with fidelity, while a signal of the displacement control system does not affect the spectrum of the acceleration input signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62209013A JPH0718772B2 (en) | 1987-08-21 | 1987-08-21 | Vibration tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62209013A JPH0718772B2 (en) | 1987-08-21 | 1987-08-21 | Vibration tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6450924A true JPS6450924A (en) | 1989-02-27 |
| JPH0718772B2 JPH0718772B2 (en) | 1995-03-06 |
Family
ID=16565828
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62209013A Expired - Lifetime JPH0718772B2 (en) | 1987-08-21 | 1987-08-21 | Vibration tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0718772B2 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011047927A (en) * | 2009-07-27 | 2011-03-10 | Sanko Controls Co Ltd | Vibration generation device |
| CN106989880A (en) * | 2017-05-17 | 2017-07-28 | 深圳大学 | Simulate ground seismic wave function lower member forces testing method and apparatus |
-
1987
- 1987-08-21 JP JP62209013A patent/JPH0718772B2/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2011047927A (en) * | 2009-07-27 | 2011-03-10 | Sanko Controls Co Ltd | Vibration generation device |
| CN106989880A (en) * | 2017-05-17 | 2017-07-28 | 深圳大学 | Simulate ground seismic wave function lower member forces testing method and apparatus |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0718772B2 (en) | 1995-03-06 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term | ||
| FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20080306 Year of fee payment: 13 |