CN105004358A - Photo-magnetic hybrid coder - Google Patents
Photo-magnetic hybrid coder Download PDFInfo
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- CN105004358A CN105004358A CN201510498699.3A CN201510498699A CN105004358A CN 105004358 A CN105004358 A CN 105004358A CN 201510498699 A CN201510498699 A CN 201510498699A CN 105004358 A CN105004358 A CN 105004358A
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- circuit board
- photoelectric sensor
- magnetoelectric transducer
- code
- wheel
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Abstract
The invention discloses a photo-magnetic hybrid coder, which comprises a rotational motion device, a circuit board installation bracket and a coding wheel, wherein the circuit board installation bracket is fixed at a stator end face of the rotational motion assembly. The photo-magnetic hybrid coder is characterized by further comprising a photoelectric sensor and a magnetoelectric sensor, the circuit board installation bracket is provided with a photoelectric sensor circuit board and a magnetoelectric sensor circuit board, the photoelectric sensor is installed on the photoelectric sensor circuit board, and the magnetoelectric sensor is installed on the magnetoelectric sensor circuit board. The coding wheel comprises two disc faces and a wheel face located between the two disc faces, the magnetoelectric sensor is arranged at the side surface of the disc face of the coding wheel and mutually vertical with the axial direction of the coding wheel, and the photoelectric sensor is arranged in a cavity between the two disc faces of the coding wheel. Through the structure disclosed by the invention, the photoelectric sensor and the magnetoelectric sensor are combined together, defects existing in using the photoelectric sensor or the magnetoelectric sensor independently are overcome through playing the advantages of the magnetoelectric sensor and the photoelectric sensor, and the purposes of size minimization and convenient debugging are achieved.
Description
Technical field
The present invention relates to mechanical manufacturing field, refer to a kind of scrambler simultaneously using magnetoelectricity and photoelectric sensor particularly.
Background technology
Scrambler (encoder) be signal (as bit stream) or data are carried out work out, being converted to can in order to the equipment of the signal form of communication, transmission and storage.Scrambler converts electric signal to angular displacement or straight-line displacement, and the former is called code-disc, and the latter is called yardstick.Contact and contactless two kinds can be divided into according to playback mode scrambler; Increment type and absolute type two class can be divided into according to principle of work scrambler.Incremental encoder converts displacement to periodic electric signal, then this electric signal is transformed into count pulse, represents the size of displacement by the number of pulse.
Present scrambler is on the market all use single-sensor, or only uses photoelectric sensor, or only uses magnetoelectric transducer.If only use photoelectric sensor, all need to arrange multi-turn code channel when making absolute encoder or encoded servo device, cause volume to increase, the complex process of sensor.If only use magnetoelectric transducer, its positioning precision does not reach the accuracy requirement of photoelectric encoder, and magnetoelectric transducer also needs signal processing circuit to carry out auxiliary use in addition, and meanwhile the anti-electromagnetic interference capability of magnetoelectric transducer is more very different than photoelectric sensor.
Summary of the invention
Technical matters to be solved by this invention is to provide optomagnetic hybrid scrambler, photoelectric sensor and magnetoelectric transducer are combined, by playing the advantage of magnetoelectricity and photoelectric sensor, overcoming the shortcoming existed when being used alone and reaching volume minimization, the object of convenient debugging.
The present invention's adopted technical scheme that solves the problem is: optomagnetic hybrid scrambler, comprise rotation device, circuit board mounting bracket and code wheel, circuit board mounting bracket is fixed in the stator faces of rotary motion assembly, also comprise photoelectric sensor and magnetoelectric transducer, described circuit board mounting bracket is arranged photoelectric sensor circuit plate and magnetoelectric transducer circuit board, photoelectric sensor is arranged on photoelectric sensor circuit plate, and magnetoelectric transducer is arranged on magnetoelectric transducer circuit board; Described code wheel comprises two disc face and the wheel face between two disc face, and magnetoelectric transducer is arranged on the side of code wheel disc face, mutually vertical with the axis of code wheel, and photoelectric sensor is arranged in the cavity of two disc face centres of code wheel; At least one disc face of described code wheel also arranges magnet steel, and magnet steel is between magnetoelectric transducer circuit board and code wheel.Magnetoelectric transducer is utilized to provide the signal of low accuracy requirement (as the motor commutation signal in servo sensor, low bit position signalling in absolute encoder) and photoelectric sensor provide the signal of high-precision requirement (as the position signalling in encoded servo device, high bit position signalling in absolute encoder) reduce the setting of photoelectricity code channel in servo or absolute encoder, reach the object that conserve space reduces volume.The signal of magnetism encoder can be adjusted by software after scrambler installation simultaneously, and to reach accuracy requirement, than directly using, photoelectric encoder debugging is convenient.Magnetic field is produced by magnet steel, so that magnetoelectric transducer can better work and magnet steel anticorrosive property is good, durable.
Further, described photoelectric sensor is one or multiple.The differential information utilizing two photoelectric sensors to gather photosignal respectively can revise the position deviation that single-sensor collects, and improves the precision of scrambler.
Further, described magnetoelectric transducer is one or multiple.The differential information utilizing two magnetoelectric transducers to gather magnetoelectricity signal respectively can improve the positional precision of magnetoelectric transducer, thus magnetism encoder exports bit position in raising absolute encoder, reduce the quantity that photoelectric sensor arranges code channel, thus reduce the volume of scrambler.
Further, the wheel face of described code wheel is at least provided with a code-bar ring, each code-bar ring has multiple code-bar be parallel to each other, any one code-bar all with the axis being parallel of code wheel.
In order to provide protection to decoder internal structure and sealing, described circuit board mounting bracket is also fixedly covered with shell, and shell covers the whole region between magnetoelectric transducer circuit board and circuit board mounting bracket.
To sum up, the invention has the beneficial effects as follows:
1. this programme employs photoelectric sensor and magnetoelectric transducer simultaneously, magnetoelectric transducer is utilized to export the signal of low precision, utilize photoelectric encoder to export high-precision signal, overcome the shortcoming being used alone a kind of scrambler and existing, reach volume minimization and the object of convenient debugging.
2, the disc face of code wheel is used by this programme, and the space on Appropriate application code wheel, for placing photoelectric sensor, magnetoelectric transducer and code-bar ring, to make definitely or encoded servo body amasss can do thinner less.
3, this programme is provided with magnetoelectric transducer, and later stage Installation and Debugging are more convenient.
Accompanying drawing explanation
Fig. 1 is front square shaft geodesic structure schematic diagram of the present invention;
Fig. 2 is rear axis geodesic structure schematic diagram of the present invention;
Fig. 3 is the cut-open view after the present invention installs;
Fig. 4 is the structural representation of magnet steel, code wheel, photoelectric sensor and magnetoelectric transducer circuit board;
Fig. 5 is the structural representation of magnet steel, code wheel, two photoelectric sensors and two magnetoelectric transducer circuit boards.
Mark and corresponding parts title in accompanying drawing: 1, rotation device; 2, circuit board mounting bracket; 3, code wheel; 4, scrambler shell; 11, stator faces; 12, armature spindle; 21, photoelectric sensor circuit plate; 22, photoelectric sensor; 23, magnetoelectric transducer circuit board; 24, magnetoelectric transducer; 31, wheel face; 311, disc face; 32, magnet steel.
Embodiment
Below in conjunction with embodiment and accompanying drawing, to the detailed description further of the present invention's do, but embodiments of the present invention are not limited thereto.
Embodiment 1:
As Figure 1-5, the present invention includes rotation device 1, circuit board mounting bracket 2 and code wheel 3, circuit board mounting bracket 2 is fixed in the stator faces 11 of rotary motion assembly 1, it is characterized in that, also comprise photoelectric sensor 22 and magnetoelectric transducer 24, described circuit board mounting bracket 2 is arranged photoelectric sensor circuit plate 21 and magnetoelectric transducer circuit board 23, photoelectric sensor 22 is arranged on photoelectric sensor circuit plate 21, and magnetoelectric transducer 24 is arranged on magnetoelectric transducer circuit board 23; Described code wheel 3 comprises two disc face 311 and the wheel face between two disc face 311 31, magnetoelectric transducer 24 is arranged on the side of code wheel disc face 311, mutually vertical with the axis of code wheel 3, photoelectric sensor 22 is arranged in the cavity of two disc face 311 centres of code wheel 3.Photoelectric sensor 22 wherein and magnetoelectric transducer 24 are 1.At least one disc face 311 of code wheel 3 also arranges magnet steel 32, and magnet steel 32 is between magnetoelectric transducer circuit board 23 and code wheel 3.Magnetic field is produced by magnet steel, so that magnetoelectric transducer can better work and magnet steel anticorrosive property is good, durable.
Magnetoelectric transducer is utilized to provide the signal of low accuracy requirement (as the motor commutation signal in servo sensor, low bit position signalling in absolute encoder) and photoelectric sensor provide the signal of high-precision requirement (as the position signalling in encoded servo device, high bit position signalling in absolute encoder) reduce the setting of photoelectricity code channel in servo or absolute encoder, reach the object that conserve space reduces volume.The signal of magnetism encoder can be adjusted by software after scrambler installation simultaneously, and to reach accuracy requirement, than directly using, photoelectric encoder debugging is convenient.
Embodiment 2:
The present embodiment is preferably as follows on the basis of embodiment 1: photoelectric sensor 22 is two, and magnetoelectric transducer 24 is two.The differential information utilizing two photoelectric sensors to gather photosignal respectively can revise the position deviation that single-sensor collects, and improves the precision of scrambler; The differential information utilizing two magnetoelectric transducers to gather magnetoelectricity signal respectively can improve the positional precision of magnetoelectric transducer, thus magnetism encoder exports bit position in raising absolute encoder, reduce the quantity that photoelectric sensor arranges code channel, thus reduce the volume of scrambler.
Embodiment 3:
The present embodiment on the basis of above-described embodiment preferably: in order to provide protection to decoder internal structure and sealing; circuit board mounting bracket 2 is also fixedly covered with shell 4, and shell 4 covers the whole region between magnetoelectric transducer circuit board 23 and circuit board mounting bracket 2.
The wheel face 31 of code wheel 3 is at least provided with a code-bar ring, each code-bar ring has multiple code-bar be parallel to each other, any one code-bar all with the axis being parallel of code wheel 3.
As mentioned above, the present invention can be realized preferably.
The above is only preferred embodiment of the present invention, and not do any pro forma restriction to the present invention, every any simple modification, equivalent variations done above embodiment according to technical spirit of the present invention, all falls within protection scope of the present invention.
Claims (5)
1. optomagnetic hybrid scrambler, comprise rotation device (1), circuit board mounting bracket (2) and code wheel (3), circuit board mounting bracket (2) is fixed in the stator faces (11) of rotary motion assembly (1), it is characterized in that, also comprise photoelectric sensor (22) and magnetoelectric transducer (24), described circuit board mounting bracket (2) is arranged photoelectric sensor circuit plate (21) and magnetoelectric transducer circuit board (23), photoelectric sensor (22) is arranged on photoelectric sensor circuit plate (21), magnetoelectric transducer (24) is arranged on magnetoelectric transducer circuit board (23), the wheel face (31) that described code wheel (3) comprises two disc face (311) and is positioned between two disc face (311), magnetoelectric transducer (24) is arranged on the side of code wheel disc face (311), mutually vertical with the axis of code wheel (3), photoelectric sensor (22) is arranged in the cavity of two disc face (311) centre of code wheel (3), at least one disc face (311) of described code wheel (3) also arranges magnet steel (32), and magnet steel (32) is positioned between magnetoelectric transducer circuit board (23) and code wheel (3).
2. optomagnetic hybrid scrambler according to claim 1, is characterized in that, described photoelectric sensor (22) is one or multiple.
3. optomagnetic hybrid scrambler according to claim 1, is characterized in that, described magnetoelectric transducer (24) is one or multiple.
4. optomagnetic hybrid scrambler according to claim 1, it is characterized in that, the wheel face (31) of described code wheel (3) is at least provided with a code-bar ring, and each code-bar ring has multiple code-bar be parallel to each other, any one code-bar all with the axis being parallel of code wheel (3).
5. optomagnetic hybrid scrambler according to claim 1, it is characterized in that, described circuit board mounting bracket (2) is also fixedly covered with shell (4), and shell (4) covers the whole region between magnetoelectric transducer circuit board (23) and circuit board mounting bracket (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498699.3A CN105004358A (en) | 2015-08-14 | 2015-08-14 | Photo-magnetic hybrid coder |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510498699.3A CN105004358A (en) | 2015-08-14 | 2015-08-14 | Photo-magnetic hybrid coder |
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| Publication Number | Publication Date |
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| CN105004358A true CN105004358A (en) | 2015-10-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510498699.3A Pending CN105004358A (en) | 2015-08-14 | 2015-08-14 | Photo-magnetic hybrid coder |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318855A (en) * | 2015-11-06 | 2016-02-10 | 天津雷沃动力有限公司 | Engine crankshaft position detection device |
Citations (8)
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| CN1398343A (en) * | 2000-12-06 | 2003-02-19 | 约翰尼斯海登海恩博士股份有限公司 | Multiturn encoder |
| CN2685844Y (en) * | 2004-03-25 | 2005-03-16 | 王福双 | Screw shaft type displacement transducer |
| CN1624427A (en) * | 2003-12-01 | 2005-06-08 | 安捷伦科技有限公司 | Encoder utilizing a reflective cylindrical surface |
| CN202204522U (en) * | 2011-09-15 | 2012-04-25 | 成都伊贝基科技有限公司 | High-precision coding wheel and encoder formed by high-precision coding wheel |
| US20130286194A1 (en) * | 2012-04-27 | 2013-10-31 | Canon Kabushiki Kaisha | Encoder, lens apparatus, and camera |
| CN104048726A (en) * | 2014-01-14 | 2014-09-17 | 莱芜欧利电子有限公司 | Direct reading meter character wheel surface information array method |
| CN104535092A (en) * | 2014-12-28 | 2015-04-22 | 浙江风尚科技有限公司 | Servo motor encoder and signal generating method |
| CN204788434U (en) * | 2015-08-14 | 2015-11-18 | 成都伊贝基科技有限公司 | Optomagnetic composite encoder |
-
2015
- 2015-08-14 CN CN201510498699.3A patent/CN105004358A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1398343A (en) * | 2000-12-06 | 2003-02-19 | 约翰尼斯海登海恩博士股份有限公司 | Multiturn encoder |
| CN1624427A (en) * | 2003-12-01 | 2005-06-08 | 安捷伦科技有限公司 | Encoder utilizing a reflective cylindrical surface |
| CN2685844Y (en) * | 2004-03-25 | 2005-03-16 | 王福双 | Screw shaft type displacement transducer |
| CN202204522U (en) * | 2011-09-15 | 2012-04-25 | 成都伊贝基科技有限公司 | High-precision coding wheel and encoder formed by high-precision coding wheel |
| US20130286194A1 (en) * | 2012-04-27 | 2013-10-31 | Canon Kabushiki Kaisha | Encoder, lens apparatus, and camera |
| CN104048726A (en) * | 2014-01-14 | 2014-09-17 | 莱芜欧利电子有限公司 | Direct reading meter character wheel surface information array method |
| CN104535092A (en) * | 2014-12-28 | 2015-04-22 | 浙江风尚科技有限公司 | Servo motor encoder and signal generating method |
| CN204788434U (en) * | 2015-08-14 | 2015-11-18 | 成都伊贝基科技有限公司 | Optomagnetic composite encoder |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318855A (en) * | 2015-11-06 | 2016-02-10 | 天津雷沃动力有限公司 | Engine crankshaft position detection device |
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Address after: 2, No. 15, No. 12, 610000 floor, No. 1366, Tianfu Road, Chengdu hi tech Zone, Sichuan Applicant after: Chengdu Yibeiji Tecnology Co., Ltd. Address before: High tech Zone Chengdu city Sichuan province 610000 Gaopeng Road No. 2 307 Applicant before: Chengdu Yibeiji Tecnology Co., Ltd. |
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Application publication date: 20151028 |