GB1535766A - Apparatus for measuring displacement of a member or body - Google Patents
Apparatus for measuring displacement of a member or bodyInfo
- Publication number
- GB1535766A GB1535766A GB5225875A GB5225875A GB1535766A GB 1535766 A GB1535766 A GB 1535766A GB 5225875 A GB5225875 A GB 5225875A GB 5225875 A GB5225875 A GB 5225875A GB 1535766 A GB1535766 A GB 1535766A
- Authority
- GB
- United Kingdom
- Prior art keywords
- displacement
- wheel
- sensed
- cam
- signal
- 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
- 238000006073 displacement reaction Methods 0.000 title abstract 7
- 230000008878 coupling Effects 0.000 abstract 1
- 238000010168 coupling process Methods 0.000 abstract 1
- 238000005859 coupling reaction Methods 0.000 abstract 1
- 230000003287 optical effect Effects 0.000 abstract 1
- 230000000284 resting effect Effects 0.000 abstract 1
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
- G01D5/14—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 influencing the magnitude of a current or voltage
-
- E—FIXED CONSTRUCTIONS
- E21—EARTH OR ROCK DRILLING; MINING
- E21D—SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS
- E21D23/00—Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor
- E21D23/04—Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor
-
- 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
- G01D5/244—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 influencing characteristics of pulses or pulse trains; generating pulses or pulse trains
- G01D5/245—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 influencing characteristics of pulses or pulse trains; generating pulses or pulse trains using a variable number of pulses in a train
- G01D5/2451—Incremental encoders
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Mining & Mineral Resources (AREA)
- Architecture (AREA)
- Structural Engineering (AREA)
- Life Sciences & Earth Sciences (AREA)
- General Life Sciences & Earth Sciences (AREA)
- Geochemistry & Mineralogy (AREA)
- Geology (AREA)
- Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
Abstract
1535766 Displacement transducers UNIVERSITY COLLEGE CARDIFF 17 Dec 1976 [20 Dec 1975] 52258/75 Headings G1A and G1N A displacement transducer comprises a spring strip 20 fixed at one end to a block 19 with the other end resting on the surface of a four-lobe cam 16 mounted on a spindle 14 together with a wheel 15. A body whose displacement is to be measured rotates the wheel 15 and thus the cam 16 to produce sequential flexing of the spring strip, which is sensed by strain gauges 22 bonded to its surface and connected in a bridge network. The number of output cycles from the bridge provides a coarse displacement signal, and the amplitude of the signal in each cycle provides a fine displacement signal. The lobes on the cam may be sensed by a proximity detector. In another arrangement the displacement of the wheel 15 is sensed by a disc rotating in synchronism with wheel 15 to vary the optical, electric, or magnetic coupling between two parts of a transducer, one part of which may be a Hall plate or magnetosensitive element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5225875A GB1535766A (en) | 1976-12-17 | 1976-12-17 | Apparatus for measuring displacement of a member or body |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB5225875A GB1535766A (en) | 1976-12-17 | 1976-12-17 | Apparatus for measuring displacement of a member or body |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1535766A true GB1535766A (en) | 1978-12-13 |
Family
ID=10463222
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB5225875A Expired GB1535766A (en) | 1976-12-17 | 1976-12-17 | Apparatus for measuring displacement of a member or body |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1535766A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2544485A1 (en) * | 1983-04-15 | 1984-10-19 | Tecnimatic Sa | Sensor for determining the relative angular position of two elements which rotate with respect to each other around the same axis |
| CN109026110A (en) * | 2018-11-03 | 2018-12-18 | 天地科技股份有限公司 | A kind of advanced hydraulic support of foldable walking |
| US10222278B2 (en) | 2016-02-25 | 2019-03-05 | Massachusetts Institute Of Technology | Directional force sensing element and system |
-
1976
- 1976-12-17 GB GB5225875A patent/GB1535766A/en not_active Expired
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR2544485A1 (en) * | 1983-04-15 | 1984-10-19 | Tecnimatic Sa | Sensor for determining the relative angular position of two elements which rotate with respect to each other around the same axis |
| US10222278B2 (en) | 2016-02-25 | 2019-03-05 | Massachusetts Institute Of Technology | Directional force sensing element and system |
| CN109026110A (en) * | 2018-11-03 | 2018-12-18 | 天地科技股份有限公司 | A kind of advanced hydraulic support of foldable walking |
| CN109026110B (en) * | 2018-11-03 | 2019-10-01 | 天地科技股份有限公司 | A kind of advanced hydraulic support of foldable walking |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed | ||
| PCNP | Patent ceased through non-payment of renewal fee |