JPS5676022A - Pressure fluctuation measuring method - Google Patents
Pressure fluctuation measuring methodInfo
- Publication number
- JPS5676022A JPS5676022A JP15284479A JP15284479A JPS5676022A JP S5676022 A JPS5676022 A JP S5676022A JP 15284479 A JP15284479 A JP 15284479A JP 15284479 A JP15284479 A JP 15284479A JP S5676022 A JPS5676022 A JP S5676022A
- Authority
- JP
- Japan
- Prior art keywords
- pressure fluctuation
- vibrometer
- vibration
- flat plate
- measurement
- 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
- Aerodynamic Tests, Hydrodynamic Tests, Wind Tunnels, And Water Tanks (AREA)
Abstract
PURPOSE: To improve an measurement accuracy of pressure fluctuation and a stability for a temperature variation by a method wherein a water pressure fluctuation is analyzed reversely based on a vibration characteristics of a measurement flat plate measured by a vibrometer.
CONSTITUTION: An output signal Xt measured by each vibrometer 10 is recorded in a data recorder 11, and thereafter, it is analyzed by means of a frequency analyzer 12 to output a vibration response X(ω) corresponding to each frequency. The vibration response X of this measurement flat plate 2 is operated in a formula 1 through a computer 13 by using a transfer coefficient H(ω) which is obtained separately, and then, a vibration generating force f(ω) of the measurement flat plate can be displayed on a proper display system 14. An example of a method to obtain the transfer coefficient H(ω) is to strike of each vibrometer from the base 10 with a force hammer 20 and to obtain a relative relation between the vibration caught by each vibrometer and the striking force. In this way, a measurement accuracy of pressure fluctuation and a stability for a temperature variation can be improved.
COPYRIGHT: (C)1981,JPO&Japio
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15284479A JPS5676022A (en) | 1979-11-26 | 1979-11-26 | Pressure fluctuation measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15284479A JPS5676022A (en) | 1979-11-26 | 1979-11-26 | Pressure fluctuation measuring method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS5676022A true JPS5676022A (en) | 1981-06-23 |
| JPS6122894B2 JPS6122894B2 (en) | 1986-06-03 |
Family
ID=15549359
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15284479A Granted JPS5676022A (en) | 1979-11-26 | 1979-11-26 | Pressure fluctuation measuring method |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS5676022A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374544A (en) * | 2014-12-10 | 2015-02-25 | 中国人民解放军海军工程大学 | Asymmetric measuring device for propeller pulsating pressure |
| CN104697740A (en) * | 2015-03-25 | 2015-06-10 | 浙江海洋学院 | Water tank based accurate force measurement method |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61196091A (en) * | 1985-02-25 | 1986-08-30 | 積水化学工業株式会社 | Electromotive shutter apparatus |
-
1979
- 1979-11-26 JP JP15284479A patent/JPS5676022A/en active Granted
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104374544A (en) * | 2014-12-10 | 2015-02-25 | 中国人民解放军海军工程大学 | Asymmetric measuring device for propeller pulsating pressure |
| CN104697740A (en) * | 2015-03-25 | 2015-06-10 | 浙江海洋学院 | Water tank based accurate force measurement method |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS6122894B2 (en) | 1986-06-03 |
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