JPS6469921A - Acoustic power level measuring apparatus - Google Patents
Acoustic power level measuring apparatusInfo
- Publication number
- JPS6469921A JPS6469921A JP22792187A JP22792187A JPS6469921A JP S6469921 A JPS6469921 A JP S6469921A JP 22792187 A JP22792187 A JP 22792187A JP 22792187 A JP22792187 A JP 22792187A JP S6469921 A JPS6469921 A JP S6469921A
- Authority
- JP
- Japan
- Prior art keywords
- memory
- frequencies
- stored
- acoustic
- vibration data
- 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
Landscapes
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
PURPOSE:To calculate acoustic power with good accuracy, by respectively calculating acoustic radiation coefficients from a plurality of vibration data and acoustic data different in frequency. CONSTITUTION:At first, the vibration data and sound pressure data stored in a pre-processing means 1 are read to be stored in the memory 21 of an input means 2. Next, vibration data is displayed on an output means 5 as a frequency spectrum on the basis of the frequency setting condition of an input apparatus 22 through change-over devices 6, 7. Then, two frequencies having appropriate peak values are selected on the basis of the displayed frequency spectrum. At this time, the change-over device 6 is changed over. Next, the vibration data and sound pressure data corresponding to the set frequencies and said frequencies are outputted from a memory 21 to be inputted to the first operation means 3. Herein, the acoustic radiation coefficients corresponding to two frequencies are calculated by a computer 31 on the basis of a relation expression and stored in a memory 32. Next, acoustic power is calculated by the computer of the second operation means 4 to be stored in a memory 42 and outputted from an output means 5.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22792187A JPS6469921A (en) | 1987-09-11 | 1987-09-11 | Acoustic power level measuring apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22792187A JPS6469921A (en) | 1987-09-11 | 1987-09-11 | Acoustic power level measuring apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6469921A true JPS6469921A (en) | 1989-03-15 |
Family
ID=16868383
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22792187A Pending JPS6469921A (en) | 1987-09-11 | 1987-09-11 | Acoustic power level measuring apparatus |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6469921A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008116344A (en) * | 2006-11-06 | 2008-05-22 | Ono Sokki Co Ltd | Signal analyzer, calculation program and calculation processing method |
| JP2013205048A (en) * | 2012-03-27 | 2013-10-07 | Tokyo Metropolitan Sewerage Service Corp | Method for diagnosing soundness of rotary machine |
| JP2019083383A (en) * | 2017-10-30 | 2019-05-30 | パイオニア株式会社 | Display processing device and display processing method |
-
1987
- 1987-09-11 JP JP22792187A patent/JPS6469921A/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2008116344A (en) * | 2006-11-06 | 2008-05-22 | Ono Sokki Co Ltd | Signal analyzer, calculation program and calculation processing method |
| JP2013205048A (en) * | 2012-03-27 | 2013-10-07 | Tokyo Metropolitan Sewerage Service Corp | Method for diagnosing soundness of rotary machine |
| JP2019083383A (en) * | 2017-10-30 | 2019-05-30 | パイオニア株式会社 | Display processing device and display processing method |
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