WO2006136120A1 - Drehkodierschalter - Google Patents
Drehkodierschalter Download PDFInfo
- Publication number
- WO2006136120A1 WO2006136120A1 PCT/DE2005/001097 DE2005001097W WO2006136120A1 WO 2006136120 A1 WO2006136120 A1 WO 2006136120A1 DE 2005001097 W DE2005001097 W DE 2005001097W WO 2006136120 A1 WO2006136120 A1 WO 2006136120A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- switching stages
- coding
- rotary
- switch
- switching
- Prior art date
Links
Classifications
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/1235—Non-linear conversion not otherwise provided for in subgroups of H03M1/12
-
- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03M—CODING; DECODING; CODE CONVERSION IN GENERAL
- H03M1/00—Analogue/digital conversion; Digital/analogue conversion
- H03M1/12—Analogue/digital converters
- H03M1/22—Analogue/digital converters pattern-reading type
- H03M1/24—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip
- H03M1/28—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding
- H03M1/285—Analogue/digital converters pattern-reading type using relatively movable reader and disc or strip with non-weighted coding of the unit Hamming distance type, e.g. Gray code
Definitions
- the invention relates to a rotary encoder, as used for example for the function setting in relays or the like.
- An object of the present invention is to enable a particularly secure function adjustment in relays or the like.
- a rotary encoding switch with a number of switching stages is proposed, wherein the distances between the switching stages are not constant.
- a basic idea of the 'invention is using non-constant distances between the setting of the rotary coding the percentage error in the setting of a certain setting value to reduce and thus increase the relative adjustment accuracy.
- a complex and expensive adjustment is not required.
- the intervals between the switching stages change continuously, in particular always become smaller. In other words, the distance from one switching stage to the next switching stage is reduced. This makes it possible to achieve a constant percentage error over the entire adjustable scale of the rotary encoder. It is particularly advantageous if the distances between the individual switching stages are reduced logarithmically. In other words, this results in a logarithmic division of the switching stages via the coding of the Drehkodierschalters. It is particularly advantageous if the distances decrease, starting with the switching stages which are assigned to low setting values, to the switching stages which are assigned to high setting values.
- the coding disc is formed as a hub, as provided in a further preferred embodiment of the invention, a nearly continuous adjustment is possible, as is usual with resistance potentiometers.
- a continuous "spin" of the rotary coding switch is made possible, giving the user a feeling that the resistance potentiometer is the same is used to a resist potentiometer.
- a rotary encoding switch which has a high resolution, for example with sixty-four switching stages, as well as a Gray code as coding and a rotary disc designed as coding disc.
- this Wheelkodierschalter is provided without mechanical detent positions, ie the user can set the desired value "steplessly.”
- Such a rotary encoder combines in itself the most important features to realize a particularly user-friendly operation, but without a special design of the switching stages, such as - example, changing distances between the switching stages to be set.
- FIG. 3 shows a schematic representation of a coding disc with Gray code
- n 16
- the individual switching stages have a constant distance from each other.
- Figure 1 is based on such a conventional rotary encoder, wherein already 64 switching stages are used to provide better comparability with the inventive solution.
- Rotary coding switches with 64 switching stages are not yet known.
- the constant distance between the switching stages thus has the disadvantage that, due to the setting accuracy of +/- 4 ° at the lower setting mark (25A), a large percentage error occurs, while at the upper setting mark (100A) the percentage error is very small.
- the invention therefore proposes a rotary coding switch which has a constant percentage error over the entire scale. This is achieved in that the distances of the switching stages at the lower setting mark (25A) are greater than the intervals of the switching stages at the upper setting mark (100A), where one can allow a larger Einstellwinkelschreib. In particular, the distances between the individual switching stages from the lower switching stage to the upper switching stage logarithmically smaller.
- the percentage error at the lower index mark (25A) is 0% for such a rotary encoder and 2.4% at the upper index.
- the largest error percentage is when the distance between one switching stage and the next switching stage is greater than 8 ° for the first time. In the example chosen, this would be the case at 42, 9A.
- a turntable As encoder a turntable is used, which has a tap. In contrast to conventional resistance potentiometers, however, it is not resistance values but digital signals that are tapped.
- the coding of the coding disc is effected by the use of conductive and non-conductive surfaces (shown in FIG. 3 as black and white bars), which are scanned with a corresponding number of sensors. In this case, a conductive area stands for the digital value "1 ⁇ " and a non-conductive area for the digital value "0".
- a Gray code is used, cf. FIG. 3.
- the Gray code is a coding method for the robust transmission of digital quantities. Its essential feature is that the Graycodes for two adjacent segments only differ by 1 bit. This reduces the maximum possible setting error.
- the Gray code is suitable in particular for a circular arrangement as on the coding disk shown in FIG. 3, since only one point changes during the transition from the highest number to 0.
- a table representing the Gray code for 64 switching stages is shown in FIG. 4.
- the distance between the individual switching stages changes on the encoder disk. logarithmic.
- the conductive and non-conductive areas at the lower switching stages are wider than the areas at the upper switching stages 61, 62, 63. This means at the same time that the distances change between the switching stages. Starting from the low switching stages to the higher switching stages, the distances between the individual switching stages are reduced.
- a Drehkodierschalter can take over the function of a yorkspotentiometers, while maintaining the positive characteristics of the mattersspotentiometers (continuous rotation, relative adjustment accuracy), but without having to perform an expensive and complex adjustment.
- the rotary encoder switch with detent positions. This is particularly useful if the rotary encoder switch is shock- In this case, the detents serve to prevent unintentional misalignment.
Abstract
Description
Claims
Priority Applications (6)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2005/001097 WO2006136120A1 (de) | 2005-06-20 | 2005-06-20 | Drehkodierschalter |
CA002612556A CA2612556A1 (en) | 2005-06-20 | 2005-06-20 | Rotary encoding switch |
DE112005003677T DE112005003677A5 (de) | 2005-06-20 | 2005-06-20 | Drehkodierschalter |
CNA2005800502007A CN101208862A (zh) | 2005-06-20 | 2005-06-20 | 旋转编码开关 |
US11/922,493 US7612689B2 (en) | 2005-06-20 | 2005-06-20 | Rotary encoding switch |
EP05761991A EP1894303A1 (de) | 2005-06-20 | 2005-06-20 | Drehkodierschalter |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
PCT/DE2005/001097 WO2006136120A1 (de) | 2005-06-20 | 2005-06-20 | Drehkodierschalter |
Publications (1)
Publication Number | Publication Date |
---|---|
WO2006136120A1 true WO2006136120A1 (de) | 2006-12-28 |
Family
ID=34972914
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
PCT/DE2005/001097 WO2006136120A1 (de) | 2005-06-20 | 2005-06-20 | Drehkodierschalter |
Country Status (6)
Country | Link |
---|---|
US (1) | US7612689B2 (de) |
EP (1) | EP1894303A1 (de) |
CN (1) | CN101208862A (de) |
CA (1) | CA2612556A1 (de) |
DE (1) | DE112005003677A5 (de) |
WO (1) | WO2006136120A1 (de) |
Families Citing this family (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE102005059494A1 (de) * | 2005-12-13 | 2007-06-14 | Tecpharma Licensing Ag | E-Modul |
DE102008020110A1 (de) * | 2008-04-23 | 2009-10-29 | Dr. Johannes Heidenhain Gmbh | Winkelmesseinrichtung und Baureihe mit derartigen Winkelmesseinrichtungen |
DE102010001967A1 (de) * | 2010-02-16 | 2011-08-18 | Robert Bosch GmbH, 70469 | Bedienelement für Handwerkzeugmaschine |
CN108777898A (zh) * | 2018-06-05 | 2018-11-09 | 深圳市廿年科技有限公司 | 一种旋钮编码开关以及智能调光方法 |
Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187318A (en) * | 1960-05-17 | 1965-06-01 | Itt | Function encoding system |
US3196431A (en) * | 1962-11-21 | 1965-07-20 | Control Company Inc Comp | Encoding apparatus |
US3680079A (en) * | 1970-06-08 | 1972-07-25 | Charles P Hedges | Apparatus for providing conversion between analog and digital values |
US4567467A (en) * | 1984-02-21 | 1986-01-28 | Towmotor Corporation | Angular rotary position encoder |
DE19803661A1 (de) * | 1998-01-30 | 1999-08-05 | Siemens Ag | Elektrisches Gerät mit Gehäuse und Frontblende |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3432847A (en) * | 1965-04-02 | 1969-03-11 | Breeze Corp | Rotation input encoder assembly |
FR2336782A1 (fr) * | 1975-12-22 | 1977-07-22 | Radiotechnique Compelec | Commutateurs rotatifs codeurs |
US4163879A (en) * | 1977-12-01 | 1979-08-07 | Amerace Corporation | Selector switch |
US5006703A (en) * | 1988-02-22 | 1991-04-09 | Victor Company Of Japan, Ltd. | Reflective optical rotary encoder disc |
US4945231A (en) * | 1988-06-02 | 1990-07-31 | Toyota Jidosha Kabushiki Kaisha | Compound rotary encoder for detecting the rotation angle and the number of rotations of a rotor shaft |
JP3044957B2 (ja) * | 1993-01-13 | 2000-05-22 | 松下電器産業株式会社 | インクリメンタルエンコーダ |
US5602388A (en) * | 1994-09-09 | 1997-02-11 | Sony Corporation | Absolute and directional encoder using optical disk |
US6081339A (en) * | 1997-05-29 | 2000-06-27 | Aim Controls, Inc. | Method and apparatus for measuring the direction and position of rotating bodies |
US6124589A (en) * | 1997-06-16 | 2000-09-26 | West; Donald Lee | Virtual mask encoder |
DE10056604A1 (de) * | 2000-11-15 | 2002-05-23 | Kostal Leopold Gmbh & Co Kg | Verfahren zur Signalauswertung einer optoelektronischen Weg-oder Winkelmeßeinrichtung sowie Verwendung eines solchen Verfahrens |
US6448518B1 (en) * | 2001-06-11 | 2002-09-10 | Delphi Technologies, Inc. | Resistive switch pad |
GB0127491D0 (en) * | 2001-11-16 | 2002-01-09 | Trw Lucas Varity Electric | Angular position sensor |
JP2004191087A (ja) * | 2002-12-09 | 2004-07-08 | Nidec Copal Corp | 光学式エンコーダ |
-
2005
- 2005-06-20 WO PCT/DE2005/001097 patent/WO2006136120A1/de active Application Filing
- 2005-06-20 EP EP05761991A patent/EP1894303A1/de not_active Withdrawn
- 2005-06-20 CA CA002612556A patent/CA2612556A1/en not_active Abandoned
- 2005-06-20 US US11/922,493 patent/US7612689B2/en not_active Expired - Fee Related
- 2005-06-20 CN CNA2005800502007A patent/CN101208862A/zh active Pending
- 2005-06-20 DE DE112005003677T patent/DE112005003677A5/de not_active Withdrawn
Patent Citations (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3187318A (en) * | 1960-05-17 | 1965-06-01 | Itt | Function encoding system |
US3196431A (en) * | 1962-11-21 | 1965-07-20 | Control Company Inc Comp | Encoding apparatus |
US3680079A (en) * | 1970-06-08 | 1972-07-25 | Charles P Hedges | Apparatus for providing conversion between analog and digital values |
US4567467A (en) * | 1984-02-21 | 1986-01-28 | Towmotor Corporation | Angular rotary position encoder |
DE19803661A1 (de) * | 1998-01-30 | 1999-08-05 | Siemens Ag | Elektrisches Gerät mit Gehäuse und Frontblende |
Non-Patent Citations (2)
Title |
---|
KHAIROLOMOUR P: "ROTARY ENCODER MATES WITH DIGITAL POTENTIOMETER", EDN ELECTRICAL DESIGN NEWS, ROGERS PUB. CO., ENGLEWOOD, COLO, US, vol. 48, no. 5, 6 March 2003 (2003-03-06), pages 124,126, XP001160008, ISSN: 0012-7515 * |
WOOLVET G A: "DIGITAL TRANSDUCERS", JOURNAL OF PHYSICS E. SCIENTIFIC INSTRUMENTS, IOP PUBLISHING, BRISTOL, GB, vol. 15, no. 12, 1982, pages 1271 - 1280, XP002055470, ISSN: 0022-3735 * |
Also Published As
Publication number | Publication date |
---|---|
US7612689B2 (en) | 2009-11-03 |
CA2612556A1 (en) | 2006-12-28 |
DE112005003677A5 (de) | 2008-05-21 |
CN101208862A (zh) | 2008-06-25 |
US20090135028A1 (en) | 2009-05-28 |
EP1894303A1 (de) | 2008-03-05 |
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