JP4118850B2 - Nmrプローブの放電保護装置 - Google Patents
Nmrプローブの放電保護装置 Download PDFInfo
- Publication number
- JP4118850B2 JP4118850B2 JP2004251683A JP2004251683A JP4118850B2 JP 4118850 B2 JP4118850 B2 JP 4118850B2 JP 2004251683 A JP2004251683 A JP 2004251683A JP 2004251683 A JP2004251683 A JP 2004251683A JP 4118850 B2 JP4118850 B2 JP 4118850B2
- Authority
- JP
- Japan
- Prior art keywords
- antenna
- discharge
- probe
- current
- voltage
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Testing Relating To Insulation (AREA)
Description
Claims (2)
- アンテナを有するプローブと、前記アンテナに高周波を供給する電源を有するNMR装置において、前記プローブのアンテナ近傍に、非磁性バルク導体により構成され、その放電開始電圧時間積がアンテナから周囲へ、あるいはアンテナ内部の放電開始電圧時間積よりも低く設定された電極を設け、前記アンテナと電源を接続する回路上に電流検出器を設け、前記電流検出器で検出した電流の位相および時間特性から、前記アンテナに流れる負荷電流と前記電極の放電電流を識別し、放電電流が検出された時に前記アンテナに供給する電力を抑制することを特徴とするNMRプローブの放電保護装置。
- 請求項1において、前記プローブのアンテナが薄膜で形成されているNMRプローブの放電保護装置。
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004251683A JP4118850B2 (ja) | 2004-08-31 | 2004-08-31 | Nmrプローブの放電保護装置 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2004251683A JP4118850B2 (ja) | 2004-08-31 | 2004-08-31 | Nmrプローブの放電保護装置 |
Publications (2)
Publication Number | Publication Date |
---|---|
JP2006071307A JP2006071307A (ja) | 2006-03-16 |
JP4118850B2 true JP4118850B2 (ja) | 2008-07-16 |
Family
ID=36152117
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP2004251683A Expired - Fee Related JP4118850B2 (ja) | 2004-08-31 | 2004-08-31 | Nmrプローブの放電保護装置 |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP4118850B2 (ja) |
-
2004
- 2004-08-31 JP JP2004251683A patent/JP4118850B2/ja not_active Expired - Fee Related
Also Published As
Publication number | Publication date |
---|---|
JP2006071307A (ja) | 2006-03-16 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US4156846A (en) | Detection of arcing faults in generator windings | |
US7898778B2 (en) | Superconducting coil quench detection method and device, and superconducting power storage unit | |
JP3628244B2 (ja) | 部分放電検出方法 | |
US20080087115A1 (en) | Sensor attached ic tag application high voltage equipment | |
Kumpulainen et al. | Pre-emptive arc fault detection techniques in switchgear and controlgear | |
EP2995966A1 (en) | Method and device for online monitoring of high voltage circuit breaker | |
US10727757B2 (en) | High voltage high frequency power converter | |
EP3312617B1 (en) | Method and device for testing a galvanic connection of a high-voltage condenser bushing assembly | |
US20080174320A1 (en) | Partial discharge sensor and partial discharge monitoring system utilizing current sensors | |
CN110007181B (zh) | 对于电气设备中的故障的监控 | |
JP5224825B2 (ja) | 絶縁監視装置 | |
JP5153353B2 (ja) | 電力機器の部分放電検出装置 | |
JP4118850B2 (ja) | Nmrプローブの放電保護装置 | |
KR101325844B1 (ko) | 전기 변환기 및 센서를 가지는 측정 변환기 | |
JP2011530970A (ja) | 直流電圧変成器を保護する装置 | |
JP2007024707A (ja) | クランプメータによる漏れ電流測定、監視装置 | |
EP0415370A1 (en) | Power apparatus, power transmission/distribution unit, and tripping method therefor | |
US10842007B2 (en) | Method for proactive mitigation of coronal discharge and flash-over events within high voltage x-ray generators used in borehole logging | |
JP4385104B2 (ja) | 急峻波抑制装置 | |
Werle et al. | New devices for a dry type transformer protection and monitoring system | |
US20180358790A1 (en) | Power device | |
JPH10341519A (ja) | ガス絶縁開閉装置の部分放電検出電極 | |
KR101883506B1 (ko) | 단열 스페이서가 구비되는 초전도 전력기기 | |
CN112578233B (zh) | 一种局部放电检测仪器的保护装置 | |
JPH01282471A (ja) | ガス絶縁開閉装置の部分放電検出方法 |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
A621 | Written request for application examination |
Free format text: JAPANESE INTERMEDIATE CODE: A621 Effective date: 20060522 |
|
RD02 | Notification of acceptance of power of attorney |
Free format text: JAPANESE INTERMEDIATE CODE: A7422 Effective date: 20060522 |
|
A977 | Report on retrieval |
Free format text: JAPANESE INTERMEDIATE CODE: A971007 Effective date: 20080222 |
|
A131 | Notification of reasons for refusal |
Free format text: JAPANESE INTERMEDIATE CODE: A131 Effective date: 20080304 |
|
A521 | Written amendment |
Free format text: JAPANESE INTERMEDIATE CODE: A523 Effective date: 20080401 |
|
TRDD | Decision of grant or rejection written | ||
A01 | Written decision to grant a patent or to grant a registration (utility model) |
Free format text: JAPANESE INTERMEDIATE CODE: A01 Effective date: 20080422 |
|
A61 | First payment of annual fees (during grant procedure) |
Free format text: JAPANESE INTERMEDIATE CODE: A61 Effective date: 20080423 |
|
R150 | Certificate of patent or registration of utility model |
Free format text: JAPANESE INTERMEDIATE CODE: R150 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110502 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20110502 Year of fee payment: 3 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20120502 Year of fee payment: 4 |
|
FPAY | Renewal fee payment (event date is renewal date of database) |
Free format text: PAYMENT UNTIL: 20130502 Year of fee payment: 5 |
|
LAPS | Cancellation because of no payment of annual fees |