CN105424073A - Incremental photoelectric encoder precision detection system - Google Patents
Incremental photoelectric encoder precision detection system Download PDFInfo
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- CN105424073A CN105424073A CN201511017711.0A CN201511017711A CN105424073A CN 105424073 A CN105424073 A CN 105424073A CN 201511017711 A CN201511017711 A CN 201511017711A CN 105424073 A CN105424073 A CN 105424073A
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Abstract
The invention discloses an incremental photoelectric encoder precision detection system, which comprises a fixing support, a DC motor, a reference encoder, a data acquisition and control circuit, a motor driving circuit and a computer with a display device, wherein the DC motor drives the reference encoder and a detected incremental photoelectric encoder to rotate synchronously. Through the data acquisition and control circuit, angle data, at each conversion edge position of two square wave signals outputted by the detected incremental photoelectric encoder, of the reference encoder are acquired; the angle data are calculated according to the preset requirements to obtain orthogonality and uniformity of the detected incremental photoelectric encoder; and precision detection on the detected incremental photoelectric encoder is realized. The reference encoder is adopted as an angle reference to obtain the angle data, angle position errors of the detected incremental photoelectric encoder can be directly detected, and detection errors brought as the rotation speed of the motor is not uniform or the rotation speed changes largely can be avoided.
Description
Technical field
The present invention relates to incremental optical-electricity encoder technical field, in particular, relate to a kind of incremental optical-electricity encoder precision detection system.
Background technology
Incremental optical-electricity encoder is a kind of using high-precision measuring grating as detecting element, by photoelectric conversion technique, the angle information of input is converted to the photoelectric displacement sensor of corresponding pulses or digital code.Incremental optical-electricity encoder is widely used in the fields such as Industry Control, Aulomatizeted Detect and precision measurement.Due to one of important technology index that precision is incremental optical-electricity encoder, therefore, in incremental optical-electricity encoder research and production process, need to detect its precision.
Existing detection method is: rotated by the tested incremental optical-electricity encoder of driven by motor, the angle that when motor at the uniform velocity rotates, tested incremental optical-electricity encoder turns over is represented by two square-wave signal A and B exported, by the time of the crest in two cycles adjacent in oscilloscope measurement square-wave signal A, and the time that the trough of square-wave signal B interlocks with crest and the trough of square-wave signal A respectively, thus these Time Calculation are utilized to obtain homogeneity and the orthogonality of tested incremental optical-electricity encoder.Usually using accuracy detection that the homogeneity of tested incremental optical-electricity encoder and orthogonality realize tested incremental optical-electricity encoder as the turning error of tested incremental optical-electricity encoder.
Because existing detection method is larger by the impact of motor stability of rotation, therefore, when motor speed is uneven or rotation speed change is larger, two the square-wave signal deviations obtained are larger, thus the homogeneity of the tested incremental optical-electricity encoder calculated and the deviation of orthogonality are increased, therefore cannot reflect the true precision of tested incremental optical-electricity encoder.
Summary of the invention
In view of this, the invention provides a kind of incremental optical-electricity encoder precision detection system, to realize the direct-detection of the turning error to tested incremental optical-electricity encoder, avoiding the metrical error because bringing when motor speed is uneven or rotation speed change is larger.
A kind of incremental optical-electricity encoder precision detection system, comprise: fixed support (11), direct current generator (12), reference encoders (13), data collection and control circuit (14), motor-drive circuit (15) and there is the computing machine (16) of display device, wherein, described fixed support (11) has upper and lower two platforms, be respectively the first platform (111) being positioned at the first surface level and the second platform (112) being positioned at the second surface level, described first surface level is higher than described second surface level;
Tested incremental optical-electricity encoder (17) is fixed on described first platform (111), described reference encoders (13) is fixed on described second platform (112), one end of the main shaft of described reference encoders (13) is connected with described direct current generator (12), the other end of described main shaft is connected with the main shaft of described tested incremental optical-electricity encoder (17), described tested incremental optical-electricity encoder (17) and described reference encoders (13) are connected with described data collection and control circuit (14) respectively, described data collection and control circuit (14) is connected with described direct current generator (12) by described motor-drive circuit (15), described computing machine (16) is connected with described data collection and control circuit (14),
Described computing machine (16) sends startup command to described data collection and control circuit (14), described data collection and control circuit (14) controls described motor-drive circuit (15) according to described startup command and drives described direct current generator (12) to rotate, described direct current generator (12) drives described reference encoders (13) and described tested incremental optical-electricity encoder (17) synchronous axial system, described data collection and control circuit (14) gathers the angle-data of each conversion along position of two square-wave signals that described reference encoders (13) exports described tested incremental optical-electricity encoder (17), and described angle-data is calculated orthogonality and the homogeneity of described tested incremental optical-electricity encoder (17) according to preset requirement, and export described computing machine (16) to and show.
Preferably, the process that described data collection and control circuit (14) calculates described orthogonality and described homogeneity comprises:
Described data collection and control circuit (14) receives the first square-wave signal and the second square-wave signal that described tested incremental optical-electricity encoder (17) exports, and the angle reference data that described reference encoders (13) exports;
Utilize described first square-wave signal, described second square-wave signal and described angle reference data, obtain the angle value a that the crest in adjacent two cycles in described first square-wave signal is corresponding
1with angle value a
2, the trough of described second square-wave signal and described first square-wave signal the staggered angle value a of trough
3, and the staggered angle value a of the crest of the trough of described second square-wave signal and described first square-wave signal
4;
By described angle value a
1with described angle value a
2bring following formula (1) into, obtain homogeneity J, formula (1) is:
By described angle value a
3with described angle value a
4bring following formula (2) into, obtain orthogonality Y, formula (2) is:
Preferably, described data collection and control circuit (14) comprising:
The tested incremental optical-electricity encoder data acquisition circuit (141) be connected with tested incremental optical-electricity encoder (17), described tested incremental optical-electricity encoder data acquisition circuit (141) is for described first square-wave signal that gathers described tested incremental optical-electricity encoder (17) and export and described second square-wave signal;
The reference encoders data acquisition circuit (142) be connected with described reference encoders (13), the described angle reference data that described reference encoders data acquisition circuit (142) exports for gathering described reference encoders (13);
Data processing and counting circuit (143), described data processing and counting circuit (143) are connected with described tested incremental optical-electricity encoder data acquisition circuit (141) and described reference encoders data acquisition circuit (142) respectively, for gathering the angle-data of each conversion along position of two square-wave signals that described reference encoders (13) exports described tested incremental optical-electricity encoder (17), and described angle-data is calculated described orthogonality and described homogeneity according to preset requirement;
Data transmission circuit (144), described data transmission circuit (144) is connected with counting circuit (143) and described computing machine (16) with described data processing respectively, for exporting the described enabled instruction that sends of the described computing machine (16) received to described data processing and counting circuit (143), and the described homogeneity described data processing of reception and counting circuit (143) exported and described orthogonality export described computing machine (16) to shows;
Circuit for controlling motor (145), described circuit for controlling motor 145 is connected with described data transmission circuit (144) and described motor-drive circuit (15) respectively, and the described enabled instruction for being sent by described computing machine (16) exports described motor-drive circuit (15) to and rotates to control described direct current generator (12).
Preferably, described data collection and control circuit (14) also comprises: A/D Acquisition Circuit (146);
Described A/D Acquisition Circuit (146) is connected with described tested incremental optical-electricity encoder (17) and described data transmission circuit (144) respectively, for gathering the amplitude of two described square-wave signals that described tested incremental optical-electricity encoder (17) exports, and export described computing machine (16) to by described data transmission circuit (144).
Preferably, the main shaft of described reference encoders (13) is connected by the main shaft of shaft coupling (18) with described tested incremental optical-electricity encoder (17).
Preferably, described tested incremental optical-electricity encoder (17) is connected with described data collection and control circuit (14) respectively by cable with described reference encoders (13).
As can be seen from above-mentioned technical scheme, the invention provides a kind of incremental optical-electricity encoder precision detection system, comprise fixed support, direct current generator, reference encoders, data collection and control circuit, motor-drive circuit and have the computing machine of display device, direct current generator drives reference encoders and tested incremental optical-electricity encoder synchronous axial system.Detection system gathers the angle-data of each conversion along position of two square-wave signals that reference encoders exports at tested incremental optical-electricity encoder by data collection and control circuit, and this angle-data is calculated tested incremental optical-electricity encoder orthogonality and homogeneity according to preset requirement, realize the accuracy detection to tested incremental optical-electricity encoder.Can find out, the present invention adopts reference encoders to obtain angle-data as angle reference, compared to existing technology the tested incremental optical-electricity encoder collected is turned over the time of angle as angle-data, present invention achieves the direct-detection of the turning error to tested incremental optical-electricity encoder, thus the metrical error avoided because bringing when motor speed is uneven or rotation speed change is larger, make testing result more genuine and believable, effectively improve the accuracy of detection to tested incremental optical-electricity encoder.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only embodiments of the invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to the accompanying drawing provided.
The structural representation of Fig. 1 a kind of incremental optical-electricity encoder precision detection system disclosed in the embodiment of the present invention;
Fig. 2 is a kind of incremental optical-electricity encoder signal output waveform figure disclosed in the embodiment of the present invention;
The structural representation of Fig. 3 a kind of data collection and control circuit disclosed in the embodiment of the present invention;
The structural representation of Fig. 4 another kind of incremental optical-electricity encoder precision detection system disclosed in the embodiment of the present invention.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
The embodiment of the invention discloses a kind of incremental optical-electricity encoder precision detection system, to realize the direct-detection of the turning error to tested incremental optical-electricity encoder, avoiding the metrical error because bringing when motor speed is uneven or rotation speed change is larger.
See Fig. 1, the structural representation of a kind of incremental optical-electricity encoder precision detection system that the embodiment of the present invention provides, detection system comprises: fixed support 11, direct current generator 12, reference encoders 13, data collection and control circuit 14, motor-drive circuit 15 and have the computing machine 16 of display device, wherein, described fixed support 11 has upper and lower two platforms, be respectively the first platform 111 being positioned at the first surface level and the second platform 112 being positioned at the second surface level, described first surface level is higher than described second surface level;
Concrete, tested incremental optical-electricity encoder 17 is fixed on the first platform 111, reference encoders 13 is fixed on the second platform 112, one end of the main shaft of reference encoders 13 is connected with direct current generator 12, the other end of this main shaft is connected with the main shaft of tested incremental optical-electricity encoder 17, tested incremental optical-electricity encoder 17 is connected with data collection and control circuit 14 respectively with reference encoders 13, data collection and control circuit 14 is connected with direct current generator 12 by motor-drive circuit 15, and computing machine 16 is connected with data collection and control circuit 14.
Wherein, tested incremental optical-electricity encoder 17 is fixed by screws on the first platform 111; Reference encoders 13 is fixed by screws on the second platform 112.
The principle of work of incremental optical-electricity encoder precision detection system is specific as follows:
Computing machine 16 sends startup command to data collection and control circuit 14, data collection and control circuit 14 controls motor-drive circuit 15 according to described startup command and drives direct current generator 12 to rotate, and direct current generator 12 drives reference encoders 13 and tested incremental optical-electricity encoder 17 synchronous axial system;
Data collection and control circuit 14 gathers the angle-data of each conversion along position of two square-wave signals that reference encoders 13 exports at tested incremental optical-electricity encoder 17, and described angle-data is calculated orthogonality and the homogeneity of tested incremental optical-electricity encoder 17 according to preset requirement, and export computing machine 16 to and show, thus complete the accuracy detection to tested incremental optical-electricity encoder 17.
The process that data collection and control circuit 14 calculates described orthogonality and described homogeneity comprises:
Data collection and control circuit 14 receives the first square-wave signal A and the second square-wave signal B (see Fig. 2) of the output of tested incremental optical-electricity encoder 17, and the angle reference data that reference encoders (13) exports;
Utilize the first square-wave signal A and the second square-wave signal B and angle reference data, obtain the angle value a that the crest in adjacent two cycles in the first square-wave signal A is corresponding
1with angle value a
2, the trough of the second square-wave signal B and the staggered angle value a of the first square-wave signal A trough
3, and the crest of the second square-wave signal B and the staggered angle value a of the first square-wave signal A trough
4;
By described angle value a
1with described angle value a
2bring following formula (1) into, obtain homogeneity J, formula (1) is:
By described angle value a
3with described angle value a
4bring following formula (2) into, obtain orthogonality Y, formula (2) is:
In summary it can be seen, incremental optical-electricity encoder precision detection system provided by the invention, the angle-data of each conversion along position of two square-wave signals that reference encoders 13 exports at tested incremental optical-electricity encoder 17 is gathered by data collection and control circuit 14, and this angle-data is calculated tested incremental optical-electricity encoder 17 orthogonality and homogeneity according to preset requirement, realize the accuracy detection to tested incremental optical-electricity encoder 17.Can find out, the angle-data that the present invention adopts reference encoders 13 to obtain as angle reference, compared to existing technology the tested incremental optical-electricity encoder 17 collected is turned over the time of angle as angle-data, present invention achieves the direct-detection of the turning error to tested incremental optical-electricity encoder 17, thus the metrical error avoided because bringing when motor speed is uneven or rotation speed change is larger, make testing result more genuine and believable, effectively improve the accuracy of detection to tested incremental optical-electricity encoder 17.
It should be noted that, data collection and control circuit 14 can also gather sine wave signal, the cosine wave signal that tested incremental optical-electricity encoder 17 exports, and utilizes sine wave signal and cosine wave signal to calculate DC level rate of change, phase angle variations amount, degree of distortion and amplitude deviation etc.
Wherein, tested incremental optical-electricity encoder 17 is connected with data collection and control circuit 14 respectively by cable with reference encoders 13.
Preferably, reference encoders 13 is 24 incremental optical-electricity encoders, and its precision is σ <1 〞, and resolving power is 0.077 〞.
Preferably, direct current generator (12) is DC brushless motor.
For optimizing above-described embodiment further, see Fig. 3, the structural representation of a kind of data collection and control circuit that the embodiment of the present invention provides, comprising: tested incremental optical-electricity encoder data acquisition circuit 141, reference encoders data acquisition circuit 142, data processing and counting circuit 143, data transmission circuit 144 and circuit for controlling motor 145;
Wherein:
Tested incremental optical-electricity encoder data acquisition circuit 141 is connected with tested incremental optical-electricity encoder 17, for gathering the first square-wave signal A and the second square-wave signal B of the output of tested incremental optical-electricity encoder 17;
It should be noted that, what tested incremental optical-electricity encoder data acquisition circuit 141 can also export tested incremental optical-electricity encoder 17 detects etc. zero pulse width (zero pulse is see the Z in Fig. 2).
Reference encoders data acquisition circuit 142 is connected with reference encoders 13, for gathering the angle reference data that reference encoders 13 exports;
Data processing and counting circuit 143 are connected with tested incremental optical-electricity encoder data acquisition circuit 141 and reference encoders data acquisition circuit 142 respectively, for gathering the angle-data of each conversion along position of two square-wave signals that reference encoders 13 exports at described tested incremental optical-electricity encoder 17, and described angle-data is calculated described orthogonality and described homogeneity according to preset requirement;
Wherein, data processing and counting circuit 143 calculate the tested orthogonality of incremental optical-electricity encoder 17 and the detailed process of homogeneity refers to above-mentioned.
Preferably, data processing and counting circuit 143 are programmable logic device (PLD).
Data transmission circuit 144 is connected with counting circuit 143 and computing machine 16 with data processing respectively, described enabled instruction for being sent by the computing machine 16 of reception exports data processing and counting circuit 143 to, and the described homogeneity data processing of reception and counting circuit 143 exported and described orthogonality export computing machine 16 to shows;
Circuit for controlling motor 145 is connected with data transmission circuit 144 and motor-drive circuit 15 respectively, and the described enabled instruction for being sent by computing machine 16 exports motor-drive circuit 15 to and rotates to control direct current generator 12.
For optimizing above-described embodiment further, data collection and control circuit 14 also comprises: A/D Acquisition Circuit 146;
A/D Acquisition Circuit 146 is connected with tested incremental optical-electricity encoder 17 and data transmission circuit 144 respectively, for gathering the amplitude of two described square-wave signals that tested incremental optical-electricity encoder 17 exports, and export computing machine 16 to by data transmission circuit 144.
Wherein, A/D Acquisition Circuit 146 is also for detecting the amplitude U of the first square-wave signal A of tested incremental optical-electricity encoder 17
awith the amplitude U of the second square-wave signal B
b(specifically see Fig. 2).
See Fig. 4, the structural representation of a kind of incremental optical-electricity encoder precision detection system that another embodiment of the present invention provides, wherein, the main shaft of reference encoders 13 is connected by the main shaft of shaft coupling 18 with tested incremental optical-electricity encoder 17.
Be understandable that, for realizing the fixing of fixed support 11, can be fixed on platform 19 by the bottom of fixed support 11, meanwhile, direct current generator 12, data collection and control circuit (14), motor-drive circuit 15 and computing machine 16 all can be placed on platform 19.
Finally, also it should be noted that, in this article, the such as relational terms of first and second grades and so on is only used for an entity or operation to separate with another entity or operational zone, and not necessarily requires or imply the relation that there is any this reality between these entities or operation or sequentially.And, term " comprises ", " comprising " or its any other variant are intended to contain comprising of nonexcludability, thus make to comprise the process of a series of key element, method, article or equipment and not only comprise those key elements, but also comprise other key elements clearly do not listed, or also comprise by the intrinsic key element of this process, method, article or equipment.When not more restrictions, the key element limited by statement " comprising ... ", and be not precluded within process, method, article or the equipment comprising described key element and also there is other identical element.
In this instructions, each embodiment adopts the mode of going forward one by one to describe, and what each embodiment stressed is the difference with other embodiments, between each embodiment identical similar portion mutually see.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.
Claims (6)
1. an incremental optical-electricity encoder precision detection system, it is characterized in that, comprise: fixed support (11), direct current generator (12), reference encoders (13), data collection and control circuit (14), motor-drive circuit (15) and there is the computing machine (16) of display device, wherein, described fixed support (11) has upper and lower two platforms, be respectively the first platform (111) being positioned at the first surface level and the second platform (112) being positioned at the second surface level, described first surface level is higher than described second surface level;
Tested incremental optical-electricity encoder (17) is fixed on described first platform (111), described reference encoders (13) is fixed on described second platform (112), one end of the main shaft of described reference encoders (13) is connected with described direct current generator (12), the other end of described main shaft is connected with the main shaft of described tested incremental optical-electricity encoder (17), described tested incremental optical-electricity encoder (17) and described reference encoders (13) are connected with described data collection and control circuit (14) respectively, described data collection and control circuit (14) is connected with described direct current generator (12) by described motor-drive circuit (15), described computing machine (16) is connected with described data collection and control circuit (14),
Described computing machine (16) sends startup command to described data collection and control circuit (14), described data collection and control circuit (14) controls described motor-drive circuit (15) according to described startup command and drives described direct current generator (12) to rotate, described direct current generator (12) drives described reference encoders (13) and described tested incremental optical-electricity encoder (17) synchronous axial system, described data collection and control circuit (14) gathers the angle-data of each conversion along position of two square-wave signals that described reference encoders (13) exports described tested incremental optical-electricity encoder (17), and described angle-data is calculated orthogonality and the homogeneity of described tested incremental optical-electricity encoder (17) according to preset requirement, and export described computing machine (16) to and show.
2. incremental optical-electricity encoder precision detection system according to claim 1, is characterized in that, the process that described data collection and control circuit (14) calculates described orthogonality and described homogeneity comprises:
Described data collection and control circuit (14) receives the first square-wave signal and the second square-wave signal that described tested incremental optical-electricity encoder (17) exports, and the angle reference data that described reference encoders (13) exports;
Utilize described first square-wave signal, described second square-wave signal and described angle reference data, obtain the angle value a that the crest in adjacent two cycles in described first square-wave signal is corresponding
1with angle value a
2, the trough of described second square-wave signal and described first square-wave signal the staggered angle value a of trough
3, and the staggered angle value a of the crest of the trough of described second square-wave signal and described first square-wave signal
4;
By described angle value a
1with described angle value a
2bring following formula (1) into, obtain homogeneity J, formula (1) is:
By described angle value a
3with described angle value a
4bring following formula (2) into, obtain orthogonality Y, formula (2) is:
3. incremental optical-electricity encoder precision detection system according to claim 1, is characterized in that, described data collection and control circuit (14) comprising:
The tested incremental optical-electricity encoder data acquisition circuit (141) be connected with tested incremental optical-electricity encoder (17), described tested incremental optical-electricity encoder data acquisition circuit (141) is for described first square-wave signal that gathers described tested incremental optical-electricity encoder (17) and export and described second square-wave signal;
The reference encoders data acquisition circuit (142) be connected with described reference encoders (13), the described angle reference data that described reference encoders data acquisition circuit (142) exports for gathering described reference encoders (13);
Data processing and counting circuit (143), described data processing and counting circuit (143) are connected with described tested incremental optical-electricity encoder data acquisition circuit (141) and described reference encoders data acquisition circuit (142) respectively, for gathering the angle-data of each conversion along position of two square-wave signals that described reference encoders (13) exports described tested incremental optical-electricity encoder (17), and described angle-data is calculated described orthogonality and described homogeneity according to preset requirement;
Data transmission circuit (144), described data transmission circuit (144) is connected with counting circuit (143) and described computing machine (16) with described data processing respectively, for exporting the described enabled instruction that sends of the described computing machine (16) received to described data processing and counting circuit (143), and the described homogeneity described data processing of reception and counting circuit (143) exported and described orthogonality export described computing machine (16) to shows;
Circuit for controlling motor (145), described circuit for controlling motor 145 is connected with described data transmission circuit (144) and described motor-drive circuit (15) respectively, and the described enabled instruction for being sent by described computing machine (16) exports described motor-drive circuit (15) to and rotates to control described direct current generator (12).
4. incremental optical-electricity encoder precision detection system according to claim 3, is characterized in that, described data collection and control circuit (14) also comprises: A/D Acquisition Circuit (146);
Described A/D Acquisition Circuit (146) is connected with described tested incremental optical-electricity encoder (17) and described data transmission circuit (144) respectively, for gathering the amplitude of two described square-wave signals that described tested incremental optical-electricity encoder (17) exports, and export described computing machine (16) to by described data transmission circuit (144).
5. incremental optical-electricity encoder precision detection system according to claim 1, it is characterized in that, the main shaft of described reference encoders (13) is connected by the main shaft of shaft coupling (18) with described tested incremental optical-electricity encoder (17).
6. incremental optical-electricity encoder precision detection system according to claim 1, it is characterized in that, described tested incremental optical-electricity encoder (17) is connected with described data collection and control circuit (14) respectively by cable with described reference encoders (13).
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| CN107830819A (en) * | 2017-09-28 | 2018-03-23 | 中国科学院长春光学精密机械与物理研究所 | High-precision angular errors demarcation dish and calibration system with identification groove |
| CN107655511A (en) * | 2017-11-03 | 2018-02-02 | 常州寻心电子科技有限公司 | A kind of magnetic encoder calibrating installation and method |
| CN109883465A (en) * | 2017-12-06 | 2019-06-14 | 上海三菱电梯有限公司 | Encoder detection method |
| CN109883465B (en) * | 2017-12-06 | 2021-10-01 | 上海三菱电梯有限公司 | Encoder detection method |
| CN108168590A (en) * | 2018-01-15 | 2018-06-15 | 固安华电天仁控制设备有限公司 | A kind of increment type absolute value type motor encoder detecting |
| CN108151786A (en) * | 2018-02-13 | 2018-06-12 | 吉林宇恒光电仪器有限责任公司 | Photoelectric encoder angular error automatic checkout system and systematic features method |
| CN108151786B (en) * | 2018-02-13 | 2024-04-12 | 吉林宇恒光电仪器有限责任公司 | Automatic detection system for angle error of photoelectric encoder and system error correction method |
| CN108318068A (en) * | 2018-05-03 | 2018-07-24 | 中国计量大学 | A kind of high and low temperature environment lower angle calibrating installation and method |
| CN110230977A (en) * | 2018-06-29 | 2019-09-13 | 蔚来汽车有限公司 | Rotation becomes dynamic Error Analysis device and method, controller and the storage medium of equipment |
| CN109470292A (en) * | 2018-12-06 | 2019-03-15 | 广州广电计量检测股份有限公司 | Portable angle angular speed calibration system and its calibration method |
| CN110133316A (en) * | 2019-04-26 | 2019-08-16 | 中国科学院长春光学精密机械与物理研究所 | A kind of photoelectric encoder precision velocity-measuring system and method |
| CN110133316B (en) * | 2019-04-26 | 2020-07-24 | 中国科学院长春光学精密机械与物理研究所 | Precise speed measurement system and method for photoelectric encoder |
| CN109990823A (en) * | 2019-04-29 | 2019-07-09 | 吉林大学 | For detecting the detection device and detection method of photoelectric encoder precision |
| CN115876238A (en) * | 2022-11-11 | 2023-03-31 | 广州市鸿辉电工机械有限公司 | Monitoring auxiliary system for incremental encoder signal receiving and transmitting |
| CN115824286A (en) * | 2023-02-08 | 2023-03-21 | 长春长光启衡传感技术有限公司 | Device and method for quickly detecting error of angle encoder |
| CN116481582A (en) * | 2023-06-21 | 2023-07-25 | 深圳深蕾科技股份有限公司 | Precision detection system of incremental photoelectric encoder |
| CN116481582B (en) * | 2023-06-21 | 2023-09-05 | 深圳深蕾科技股份有限公司 | Precision detection system of incremental photoelectric encoder |
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Application publication date: 20160323 |