JPH01180729U - - Google Patents
Info
- Publication number
- JPH01180729U JPH01180729U JP7389888U JP7389888U JPH01180729U JP H01180729 U JPH01180729 U JP H01180729U JP 7389888 U JP7389888 U JP 7389888U JP 7389888 U JP7389888 U JP 7389888U JP H01180729 U JPH01180729 U JP H01180729U
- Authority
- JP
- Japan
- Prior art keywords
- background noise
- noise signal
- abnormality
- subtracter
- basic
- 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
- 230000005856 abnormality Effects 0.000 claims description 7
- 238000005259 measurement Methods 0.000 claims description 2
- 238000001514 detection method Methods 0.000 claims 2
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Examining Or Testing Airtightness (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7389888U JPH01180729U (ko) | 1988-06-03 | 1988-06-03 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP7389888U JPH01180729U (ko) | 1988-06-03 | 1988-06-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01180729U true JPH01180729U (ko) | 1989-12-26 |
Family
ID=31299023
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP7389888U Pending JPH01180729U (ko) | 1988-06-03 | 1988-06-03 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01180729U (ko) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015072130A1 (ja) * | 2013-11-12 | 2015-05-21 | 日本電気株式会社 | 漏洩判定システムおよび漏洩判定方法 |
-
1988
- 1988-06-03 JP JP7389888U patent/JPH01180729U/ja active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2015072130A1 (ja) * | 2013-11-12 | 2015-05-21 | 日本電気株式会社 | 漏洩判定システムおよび漏洩判定方法 |
| US10036684B2 (en) | 2013-11-12 | 2018-07-31 | Nec Corporation | Leakage determination system and leakage determination method |
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