JPS55134350A - Sound measuring method - Google Patents
Sound measuring methodInfo
- Publication number
- JPS55134350A JPS55134350A JP4096979A JP4096979A JPS55134350A JP S55134350 A JPS55134350 A JP S55134350A JP 4096979 A JP4096979 A JP 4096979A JP 4096979 A JP4096979 A JP 4096979A JP S55134350 A JPS55134350 A JP S55134350A
- Authority
- JP
- Japan
- Prior art keywords
- electrical noise
- bead weld
- lengths
- shifted
- produced
- 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
- Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
Abstract
PURPOSE: To obtain a reliable AE data not affected by an electrical noise by performing the measurement by shifting the center position of the distance between respective sound converters, which contain the sound propagation part, from the acoustic emission range.
CONSTITUTION: An example wherein the wave directing rods 2 the lengths of which are different from each other are used is shown. The lengths of the rods are made different from each other so that the center position of the measurement interval by the detector is shifted from the bead weld. By this, the position at which an electrical noise is produced can be shifted from the bead weld, a defect regarded in a traditional method as if an electrical noise was produced from the bead weld can be eliminated.
COPYRIGHT: (C)1980,JPO&Japio
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4096979A JPS55134350A (en) | 1979-04-06 | 1979-04-06 | Sound measuring method |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP4096979A JPS55134350A (en) | 1979-04-06 | 1979-04-06 | Sound measuring method |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS55134350A true JPS55134350A (en) | 1980-10-20 |
Family
ID=12595287
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP4096979A Pending JPS55134350A (en) | 1979-04-06 | 1979-04-06 | Sound measuring method |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS55134350A (en) |
Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5259433A (en) * | 1975-11-10 | 1977-05-16 | Nihon Radiator Co | Automatic temperature controlling system for automotive air conditioner |
JPS54131228A (en) * | 1978-03-31 | 1979-10-12 | Nihon Radiator Co | Mode control method in automatic airrconditioning of automobile and its device |
-
1979
- 1979-04-06 JP JP4096979A patent/JPS55134350A/en active Pending
Patent Citations (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPS5259433A (en) * | 1975-11-10 | 1977-05-16 | Nihon Radiator Co | Automatic temperature controlling system for automotive air conditioner |
JPS54131228A (en) * | 1978-03-31 | 1979-10-12 | Nihon Radiator Co | Mode control method in automatic airrconditioning of automobile and its device |
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