GB1298127A - Electromagnetic instrument - Google Patents
Electromagnetic instrumentInfo
- Publication number
- GB1298127A GB1298127A GB28888/70A GB2888870A GB1298127A GB 1298127 A GB1298127 A GB 1298127A GB 28888/70 A GB28888/70 A GB 28888/70A GB 2888870 A GB2888870 A GB 2888870A GB 1298127 A GB1298127 A GB 1298127A
- Authority
- GB
- United Kingdom
- Prior art keywords
- coil
- pole piece
- june
- body member
- pole
- 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
- G01R5/00—Instruments for converting a single current or a single voltage into a mechanical displacement
- G01R5/02—Moving-coil instruments
- G01R5/04—Moving-coil instruments with magnet external to the coil
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
- Water Treatment By Electricity Or Magnetism (AREA)
Abstract
1298127 Moving coil electric meters COMPAGNIE DES COMPTEURS 15 June 1970 [13 June 1969] 28888/70 Heading G1Q A moving coil meter of the long-scale type comprises an annular permanent magnet 2, a first pole piece 3 constituted by two substantially identical halves assembled together to form outer and inner annuli 21A, B and 20A, B spaced by an annular slot 22, a second pole piece 4 having a portion axially facing the inner annulus of the first pole piece, and a rotatable coil 13 encircling the inner annulus 20A, B so as to move through the annular slot 22. An adjustable triangular magnetic block 28 shunts the pole pieces 3, 4. The magnet 2 and pole pieces 3, 4 are held in assembled relationship by flanges 35, 7 on a body member 6. Bearings 10, 11 for the spindle 9 carrying the coil 13 are mounted on an extension 12 of body member 6 and on pole piece 4 respectively, the upper bearing 10 being provided with a regulating lever 15. Alternatively the coil may be torsionally suspended.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
FR6919635A FR2049558A5 (en) | 1969-06-13 | 1969-06-13 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1298127A true GB1298127A (en) | 1972-11-29 |
Family
ID=9035666
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB28888/70A Expired GB1298127A (en) | 1969-06-13 | 1970-06-15 | Electromagnetic instrument |
Country Status (4)
Country | Link |
---|---|
US (1) | US3611222A (en) |
DE (1) | DE2028680A1 (en) |
FR (1) | FR2049558A5 (en) |
GB (1) | GB1298127A (en) |
Families Citing this family (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4251771A (en) * | 1978-10-02 | 1981-02-17 | General Electric Company | Magnetic system for electrical current indicating meter |
US4443724A (en) * | 1982-02-19 | 1984-04-17 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Shaft transducer having DC output proportional to angular velocity |
JPH0624417B2 (en) * | 1984-07-27 | 1994-03-30 | 株式会社日立製作所 | Torque motor |
US7654220B2 (en) * | 2006-02-20 | 2010-02-02 | Seiko Instruments Inc. | Indicator |
CN107356788B (en) * | 2017-07-06 | 2020-08-14 | 国网山东省电力公司电力科学研究院 | Automatic loading device for testing high-current element |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE740756C (en) * | 1936-05-30 | 1943-10-28 | Schaeffer & Budenberg G M B H | Moving coil measuring device with unipolar magnet system |
US2657374A (en) * | 1949-11-02 | 1953-10-27 | Gulf Research Development Co | Suspension system for seismograph detectors |
-
1969
- 1969-06-13 FR FR6919635A patent/FR2049558A5/fr not_active Expired
-
1970
- 1970-06-08 US US44518A patent/US3611222A/en not_active Expired - Lifetime
- 1970-06-11 DE DE19702028680 patent/DE2028680A1/de active Pending
- 1970-06-15 GB GB28888/70A patent/GB1298127A/en not_active Expired
Also Published As
Publication number | Publication date |
---|---|
US3611222A (en) | 1971-10-05 |
DE2028680A1 (en) | 1970-12-17 |
FR2049558A5 (en) | 1971-03-26 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed [section 19, patents act 1949] | ||
PCNP | Patent ceased through non-payment of renewal fee |