JPS632349B2 - - Google Patents
Info
- Publication number
- JPS632349B2 JPS632349B2 JP55083730A JP8373080A JPS632349B2 JP S632349 B2 JPS632349 B2 JP S632349B2 JP 55083730 A JP55083730 A JP 55083730A JP 8373080 A JP8373080 A JP 8373080A JP S632349 B2 JPS632349 B2 JP S632349B2
- Authority
- JP
- Japan
- Prior art keywords
- measurement
- transformer
- current
- oscillation
- terminal
- 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
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R27/00—Arrangements for measuring resistance, reactance, impedance, or electric characteristics derived therefrom
- G01R27/02—Measuring real or complex resistance, reactance, impedance, or other two-pole characteristics derived therefrom, e.g. time constant
- G01R27/20—Measuring earth resistance; Measuring contact resistance, e.g. of earth connections, e.g. plates
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Resistance Or Impedance (AREA)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8373080A JPS578460A (en) | 1980-06-20 | 1980-06-20 | Earth resistance tester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP8373080A JPS578460A (en) | 1980-06-20 | 1980-06-20 | Earth resistance tester |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS578460A JPS578460A (en) | 1982-01-16 |
| JPS632349B2 true JPS632349B2 (de) | 1988-01-18 |
Family
ID=13810632
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP8373080A Granted JPS578460A (en) | 1980-06-20 | 1980-06-20 | Earth resistance tester |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS578460A (de) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684440A (ja) * | 1991-06-20 | 1994-03-25 | Isuzu Denki Kk | サーモスイッチ |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2771820B1 (fr) * | 1997-11-28 | 2000-03-03 | France Telecom | Procede de mesure d'impedance d'une prise de terre et de controle de l'equipotentialite des masses |
-
1980
- 1980-06-20 JP JP8373080A patent/JPS578460A/ja active Granted
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0684440A (ja) * | 1991-06-20 | 1994-03-25 | Isuzu Denki Kk | サーモスイッチ |
Also Published As
| Publication number | Publication date |
|---|---|
| JPS578460A (en) | 1982-01-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US5132608A (en) | Current measuring method and apparatus therefor | |
| EP0157470A2 (de) | Magnetfeldsensor | |
| JP2001013231A (ja) | 半導体基板上に形成された磁気センサ | |
| EP0380562B1 (de) | Magnetometer mit einer saettigbaren kern aufweisenden spule | |
| JP2571364B2 (ja) | 磁束ゲ−ト・センサ装置 | |
| JPH11109008A (ja) | 磁気探知装置 | |
| JP4579523B2 (ja) | 磁気ブリッジ型電力センサー | |
| US3699442A (en) | Bi-directional signal detector with input/output isolation | |
| US2374166A (en) | Magnetic field responsive device | |
| US3983475A (en) | Frequency selective detecting system for detecting alternating magnetic fields | |
| US3422351A (en) | Hall-effect instrument for measuring the rms value of an a.c. signal | |
| JPS632349B2 (de) | ||
| JP3353533B2 (ja) | 磁力計 | |
| US6018238A (en) | Hybrid non-contact clamp-on current meter | |
| US4827214A (en) | Method for measuring losses of a magnetic core | |
| US2729781A (en) | Electromagnetic transformer | |
| JPH0687073B2 (ja) | 漏電検出装置 | |
| JPH11337591A (ja) | 直流電流検出装置 | |
| JP2000266786A (ja) | 電流センサ | |
| RU2103703C1 (ru) | Феррозондовый магнитометр | |
| JP2606043Y2 (ja) | 渦電流探傷装置 | |
| JP2008107119A (ja) | 電流センサ | |
| RU2300774C1 (ru) | Измерительный преобразователь | |
| SU702325A1 (ru) | Измерительный преобразователь электрических и магнитных величин | |
| JPH0445110B2 (de) |