GB1143508A - Encoder - Google Patents
EncoderInfo
- Publication number
- GB1143508A GB1143508A GB49305/67A GB4930567A GB1143508A GB 1143508 A GB1143508 A GB 1143508A GB 49305/67 A GB49305/67 A GB 49305/67A GB 4930567 A GB4930567 A GB 4930567A GB 1143508 A GB1143508 A GB 1143508A
- Authority
- GB
- United Kingdom
- Prior art keywords
- polepieces
- resistor
- shaft
- flux gap
- encoder
- 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
- 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
- G01D5/142—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 using Hall-effect devices
- G01D5/147—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 using Hall-effect devices influenced by the movement of a third element, the position of Hall device and the source of magnetic field being fixed in respect to each other
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/66—Digital/analogue converters
- H03M1/82—Digital/analogue converters with intermediate conversion to time interval
Landscapes
- Engineering & Computer Science (AREA)
- Theoretical Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Permanent Magnet Type Synchronous Machine (AREA)
- Transmission And Conversion Of Sensor Element Output (AREA)
Abstract
1,143,508. Shaft encoders. DIXI S.A. 31 Oct.,1967 [9 Nov., 1966], No. 49305/67. Heading G4H. A shaft encoder has a number of tracks, one for each digit, each comprising a resistor, the value of which depends on the magnetic field intensity and a magnetic path which varies as the shaft rotates. In the form of Fig. 1, the housing 1 comprises a shell containing a permanent magnet 2 forming a flux gap between rim 3 and flange 4. A ring of non-ferrous metal, e.g. brass, in the flux gap has slots for the resistors 9 and polepieces 10. The shaft 7 is fixed to a rotor 6 carrying toothed polepieces 8 forming tracks. The resistors 9 are connected as potential dividers each with a fixed resistor and the output signal is taken from the junction. The polepieces 10 may taper towards the code teeth. In another form, Fig. 3, a separate magnetic circuit is provided for each track, a permanent magnet 12 having two polepieces 13, 14, between which is placed, at one end, the resistor 9 and, at the other, the toothed disc 17 of the encoder. As the teeth pass into and out of the flux gap the magnetic field on the resistor varies. Alternatively, the gaps may be arranged in series.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CH1620366A CH448168A (en) | 1966-11-09 | 1966-11-09 | Code generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1143508A true GB1143508A (en) | 1969-02-26 |
Family
ID=4415271
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB49305/67A Expired GB1143508A (en) | 1966-11-09 | 1967-10-31 | Encoder |
Country Status (3)
| Country | Link |
|---|---|
| CH (1) | CH448168A (en) |
| DE (1) | DE1297657B (en) |
| GB (1) | GB1143508A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011128558A2 (en) | 2010-04-14 | 2011-10-20 | Moving Magnet Technologies | Improved position sensor using a moveable ferromagnetic element |
| CN107449450A (en) * | 2017-09-09 | 2017-12-08 | 尔智机器人（上海）有限公司 | A kind of magnetism encoder and joint |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS597213A (en) * | 1982-07-05 | 1984-01-14 | Inoue Japax Res Inc | Encoder |
-
1966
- 1966-11-09 CH CH1620366A patent/CH448168A/en unknown
-
1967
- 1967-10-30 DE DED54480A patent/DE1297657B/en active Pending
- 1967-10-31 GB GB49305/67A patent/GB1143508A/en not_active Expired
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2011128558A2 (en) | 2010-04-14 | 2011-10-20 | Moving Magnet Technologies | Improved position sensor using a moveable ferromagnetic element |
| FR2959011A1 (en) * | 2010-04-14 | 2011-10-21 | Moving Magnet Tech Mmt | IMPROVED POSITION SENSOR USING MOBILE FERROMAGNETIC ELEMENT |
| WO2011128558A3 (en) * | 2010-04-14 | 2013-03-14 | Moving Magnet Technologies | Position sensor using a moveable ferromagnetic element |
| US8963541B2 (en) | 2010-04-14 | 2015-02-24 | Moving Magnet Technologies (Mmt) | Position sensor using a moveable ferromagnetic element |
| CN107449450A (en) * | 2017-09-09 | 2017-12-08 | 尔智机器人（上海）有限公司 | A kind of magnetism encoder and joint |
| CN107449450B (en) * | 2017-09-09 | 2024-04-23 | 尔智机器人(珠海)有限公司 | Magneto-electric encoder and joint |
Also Published As
| Publication number | Publication date |
|---|---|
| CH448168A (en) | 1967-12-15 |
| DE1297657B (en) | 1969-06-19 |
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