GB1281339A - Improvements in the measurements of twist in rotating shafts - Google Patents
Improvements in the measurements of twist in rotating shaftsInfo
- Publication number
- GB1281339A GB1281339A GB4376068A GB4376068A GB1281339A GB 1281339 A GB1281339 A GB 1281339A GB 4376068 A GB4376068 A GB 4376068A GB 4376068 A GB4376068 A GB 4376068A GB 1281339 A GB1281339 A GB 1281339A
- Authority
- GB
- United Kingdom
- Prior art keywords
- signal
- torque
- discs
- shaft
- pulses
- 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
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05C—EMBROIDERING; TUFTING
- D05C1/00—Apparatus, devices, or tools for hand embroidering
- D05C1/08—Patterns for hand embroidering; Manufacture thereof
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L3/00—Measuring torque, work, mechanical power, or mechanical efficiency, in general
- G01L3/02—Rotary-transmission dynamometers
- G01L3/04—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft
- G01L3/10—Rotary-transmission dynamometers wherein the torque-transmitting element comprises a torsionally-flexible shaft involving electric or magnetic means for indicating
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Measurement Of Unknown Time Intervals (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Abstract
1281339 Measuring torque HAWKER SIDDELEY DYNAMICS Ltd 10 Sept 1969 [13 Sept 1968] 43760/68 Headings G1A and G1N [Also in Division G4] The torque of a rotating shaft is measured by generating a signal the phase of which relative to a reference signal represents the torque. In one embodiment two contacting discs (A, B), Fig. 3 (not shown) having a basic pattern of m and m+n opaque and transparent portions are fixed to the rotating shaft at different positions. (Preferably n-1). As torque is transmitted by the shaft the phase of the signal from a receiver 13, Fig. 4, receiving light through both the discs varies with respect to the phase of the signal from a detector sensing reference markers on one of the discs, pulses being accumulated in a counter 21 between zero crossings in predetermined direction of the signals. Preferably these pulses are derived from a reference pattern on one of the discs. The count is displayed. Horse power and horse-power-hours may be measured by accumulating the pulses between zero crossings of the signal for a predetermined length of time and by using the counter as a totalizer respectively. An analogue output signal may be obtained in time ration form. By comparing the amplitude of the signal from the detector 13 with the number of reference pulses an analogue indication of the torque within a revolution of the shaft may be obtained. In a modification two magnetic patterns are written on the shaft a fixed distance apart from which frequency signals proportion to m and m+1 are derived from pick-up heads sensing the patterns. These signals are amplified and added to give a difference frequency the phase of which relative to a reference signal from a third head receiving one pulse per revolution of the shaft represents the torque. The output from one of the heads may be used for counting. In further modifications (a) the reference markers may be on a third disc, (b) a cyclic disturbance may be put on the patter of either of the discs to generate the reference signal, (c) concentric cylinders or semicircular discs may be used and (d) reflective and non-reflective patterns may be used.
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4376068A GB1281339A (en) | 1968-09-13 | 1968-09-13 | Improvements in the measurements of twist in rotating shafts |
DE19691946226 DE1946226A1 (en) | 1968-09-13 | 1969-09-12 | Device for measuring the torsional rotation of a rotating shaft |
FR6931080A FR2018053A1 (en) | 1968-09-13 | 1969-09-12 |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
GB4376068A GB1281339A (en) | 1968-09-13 | 1968-09-13 | Improvements in the measurements of twist in rotating shafts |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1281339A true GB1281339A (en) | 1972-07-12 |
Family
ID=10430203
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB4376068A Expired GB1281339A (en) | 1968-09-13 | 1968-09-13 | Improvements in the measurements of twist in rotating shafts |
Country Status (3)
Country | Link |
---|---|
DE (1) | DE1946226A1 (en) |
FR (1) | FR2018053A1 (en) |
GB (1) | GB1281339A (en) |
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2151775A (en) * | 1983-12-16 | 1985-07-24 | Atomic Energy Authority Uk | Apparatus for measuring torque of a shaft |
US4590806A (en) * | 1984-10-03 | 1986-05-27 | Simmonds Precision Products, Inc. | Monopole digital vernier torque meter |
US4875379A (en) * | 1987-10-28 | 1989-10-24 | Ulrich Rohs | Apparatus for measuring the torque of an operating shaft |
US4918997A (en) * | 1987-03-17 | 1990-04-24 | Cgee Alsthom | Vernier torquemeter |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3002947A1 (en) * | 1980-01-29 | 1981-07-30 | Robert Bosch Gmbh, 7000 Stuttgart | Measuring torque between drive and take=off shafts of vehicle - using relative position of shaft markers |
DE3404009C1 (en) * | 1984-02-06 | 1985-08-22 | Erwin Leukhardt Gmbh & Co, 7200 Tuttlingen | Torque measuring device |
KR890000890A (en) * | 1987-06-22 | 1989-03-17 | 미타 가츠시게 | Torque Detection Device |
-
1968
- 1968-09-13 GB GB4376068A patent/GB1281339A/en not_active Expired
-
1969
- 1969-09-12 FR FR6931080A patent/FR2018053A1/fr not_active Withdrawn
- 1969-09-12 DE DE19691946226 patent/DE1946226A1/en active Pending
Cited By (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
GB2151775A (en) * | 1983-12-16 | 1985-07-24 | Atomic Energy Authority Uk | Apparatus for measuring torque of a shaft |
US4590806A (en) * | 1984-10-03 | 1986-05-27 | Simmonds Precision Products, Inc. | Monopole digital vernier torque meter |
US4918997A (en) * | 1987-03-17 | 1990-04-24 | Cgee Alsthom | Vernier torquemeter |
US4875379A (en) * | 1987-10-28 | 1989-10-24 | Ulrich Rohs | Apparatus for measuring the torque of an operating shaft |
Also Published As
Publication number | Publication date |
---|---|
DE1946226A1 (en) | 1970-03-19 |
FR2018053A1 (en) | 1970-05-29 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
435 | Patent endorsed 'licences of right' on the date specified (sect. 35/1949) | ||
732 | Registration of transactions, instruments or events in the register (sect. 32/1977) | ||
PCNP | Patent ceased through non-payment of renewal fee |