GB926852A - Improvements relating to electrical indicating apparatus - Google Patents
Improvements relating to electrical indicating apparatusInfo
- Publication number
- GB926852A GB926852A GB3566458A GB3566458A GB926852A GB 926852 A GB926852 A GB 926852A GB 3566458 A GB3566458 A GB 3566458A GB 3566458 A GB3566458 A GB 3566458A GB 926852 A GB926852 A GB 926852A
- Authority
- GB
- United Kingdom
- Prior art keywords
- armature
- relay
- coil
- nov
- solenoid
- 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
Landscapes
- Testing Of Short-Circuits, Discontinuities, Leakage, Or Incorrect Line Connections (AREA)
- Measuring Instrument Details And Bridges, And Automatic Balancing Devices (AREA)
- Investigating Or Analyzing Materials By The Use Of Magnetic Means (AREA)
Abstract
926,852. Operating single-indication receivers. ENGLISH ELECTRIC CO. Ltd. Nov. 2, 1959 [Nov. 6, 1958], No. 35664/58. Class 118. [Also in Group XXXVI] The position of a ferromagnetic member moved by a D.C.-operated coil is determined by including the coil in an A.C. bridge circuit and detecting the change in coil impedance as the member moves into it. As shown, the position of the armature 11 controlled by a solenoid 12 energized from a D.C. supply 13 is detected by the variation of balance of the A.C. bridge circuit 17. The unbalance voltage is amplified by a magnetic amplifier 23, arranged to energize lamp-operating relay 24 when the armature is in the position shown and to energize relay 25 when the armature is within the solenoid 12. A third relay may be provided to indicate faulty operation of the system.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3566458A GB926852A (en) | 1958-11-06 | 1958-11-06 | Improvements relating to electrical indicating apparatus |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB3566458A GB926852A (en) | 1958-11-06 | 1958-11-06 | Improvements relating to electrical indicating apparatus |
Publications (1)
Publication Number | Publication Date |
---|---|
GB926852A true GB926852A (en) | 1963-05-22 |
Family
ID=10380215
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB3566458A Expired GB926852A (en) | 1958-11-06 | 1958-11-06 | Improvements relating to electrical indicating apparatus |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB926852A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2448777A1 (en) * | 1979-02-09 | 1980-09-05 | Lucas Industries Ltd | IC engine fuel pump armature monitoring circuit - includes oscillator connected to armature coil avoiding use of separate indicating device |
-
1958
- 1958-11-06 GB GB3566458A patent/GB926852A/en not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2448777A1 (en) * | 1979-02-09 | 1980-09-05 | Lucas Industries Ltd | IC engine fuel pump armature monitoring circuit - includes oscillator connected to armature coil avoiding use of separate indicating device |
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