GB1303993A - - Google Patents
Info
- Publication number
- GB1303993A GB1303993A GB1303993DA GB1303993A GB 1303993 A GB1303993 A GB 1303993A GB 1303993D A GB1303993D A GB 1303993DA GB 1303993 A GB1303993 A GB 1303993A
- Authority
- GB
- United Kingdom
- Prior art keywords
- shaft
- loops
- pair
- displacement
- collar
- 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
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
- G01D5/12—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable using electric or magnetic means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
1303993 Measuring shaft displacements electrically ENGLISH ELECTRIC CO Ltd 25 March 1970 [1 April 1969 22 Aug 1969 9 Dec 1969] 17045/69 42001/69 and 60015/69 Heading G1N Apparatus for measuring displacement of a shaft 10 relative to a frame bearing the shaft and in a direction perpendicular to its axis comprises a collar 11 of non-magnetic material with a plurality of cylindrical magnets 12 embedded in it, spaced apart arcuately of it and disposed parallel to the shaft, and a pair of pick-up loops 13 in series opposition which supply a pulse train to circuits including a trigger circuit19 and a meter 24 whereby the time intervals between successive pulses are indicative of radial shaft displacement. A further pair of loops (60-61) Fig.4 (not shown), radially displaced from the pair 13 are selectively connected to the circuit for calibration. Alternatively the outputs from diametrally opposed pairs (13, 13') Fig. 5 (not shown) are combined so as to compensate for thermal expansion. To detect lateral displacement of the shaft, loops (80, 81) Fig. 6, (not shown) are provided at diametrally opposed points adjacent the collar, the plane of each of the loops being disposed parallel to the shaft. Fig. 8 (not shown) illustrates an embodiment utilising a plurality of loops thereby increasing the frequency of pulses.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB1704569 | 1969-04-01 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1303993A true GB1303993A (en) | 1973-01-24 |
Family
ID=10088273
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB1303993D Expired GB1303993A (en) | 1969-04-01 | 1969-04-01 |
Country Status (1)
Country | Link |
---|---|
GB (1) | GB1303993A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4095179A (en) * | 1974-08-29 | 1978-06-13 | Robert Bosch Gmbh | Locating system to determine the position of movable bodies with respect to a reference |
US5248940A (en) * | 1990-09-19 | 1993-09-28 | Hmd Seal/Less Pumps Limited | Apparatus for measuring changes in radial and/or axial position of a rotor in a drive system including an emf producing stationary conductor |
RU2671924C2 (en) * | 2013-12-23 | 2018-11-07 | Сафран Хеликоптер Энджинз | Turbomachine assembly for measuring vibrations acting on a blade during rotation |
-
1969
- 1969-04-01 GB GB1303993D patent/GB1303993A/en not_active Expired
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US4095179A (en) * | 1974-08-29 | 1978-06-13 | Robert Bosch Gmbh | Locating system to determine the position of movable bodies with respect to a reference |
US5248940A (en) * | 1990-09-19 | 1993-09-28 | Hmd Seal/Less Pumps Limited | Apparatus for measuring changes in radial and/or axial position of a rotor in a drive system including an emf producing stationary conductor |
RU2671924C2 (en) * | 2013-12-23 | 2018-11-07 | Сафран Хеликоптер Энджинз | Turbomachine assembly for measuring vibrations acting on a blade during rotation |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PLNP | Patent lapsed through nonpayment of renewal fees |