CN109489707A - Incremental photoelectric encoder testing machine and testing method - Google Patents
Incremental photoelectric encoder testing machine and testing method Download PDFInfo
- Publication number
- CN109489707A CN109489707A CN201811315677.9A CN201811315677A CN109489707A CN 109489707 A CN109489707 A CN 109489707A CN 201811315677 A CN201811315677 A CN 201811315677A CN 109489707 A CN109489707 A CN 109489707A
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- China
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- photoelectric encoder
- test
- sampling module
- pulse signal
- frequency pulse
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- 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
- G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
Abstract
The invention relates to an incremental photoelectric encoder testing machine and a testing method, which comprises a driving device, a rotating shaft, a photoelectric encoder and a testing unit, wherein the testing unit comprises a sampling module electrically connected with the photoelectric encoder and a testing module electrically connected with the sampling module, high-frequency pulse signals output by the tested photoelectric encoder are received by the sampling module, the sampling module comprises a high-speed counter, so that the output high-frequency signals are accurately collected by the high-speed counter and are transmitted to the testing module to test the number of pulses output by the encoder rotating for one circle, the duty ratio of each pulse signal and the phase relation among the pulses, the high-frequency pulse signals can be accurately collected, and the testing efficiency is high.
Description
Technical field
The present invention relates to electronic measuring technology field more particularly to a kind of incremental photoelectric encoder test machine and test sides
Method.
Background technique
Photoelectric encoder be measure angular displacement representative photoelectric displacement sensor, be widely used in national defence,
In industry and sciemtifec and technical sphere, photoelectric encoder passes through the signal processing of conversion circuit by each road pulse signal of output, can be with
The corner or velocity information of measured axis are obtained, photoelectric encoder has mechanical average life span length, high resolution, anti-interference ability
By force, signal transmission distance length, high reliability.The technical indicator of photoelectric encoder includes that encoder rotates a circle output
Number of pulses, the duty ratio per pulse signal all the way, the phase relation etc. between each road pulse, the prior art is straight with oscillograph
The output pulse waveform for surveying encoder is connect, phase shift and the duty of each road pulse are estimated by the coordinate transform on oscillograph
Than, and its calculating process is time-consuming, error calculated is very big, in addition to this, since full signal encoder has 12 road arteries and veins
Signal is rushed, test machine needs to sample 12 road pulse signals, and existing test machine is difficult to precise acquisition high-frequency pulse signal,
Testing efficiency is low, and resultant error is big.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, providing one kind can accurately be adopted
Collect the incremental photoelectric encoder test machine and test method of high-frequency pulse signal.
The present invention is to be achieved by the following technical programs:
A kind of incremental photoelectric encoder test machine, which is characterized in that including driving device, turn affixed with driving device
Axis, the photoelectric encoder affixed with shaft and the test cell being electrically connected with photoelectric encoder, the test cell include with
The sampling module of photoelectric encoder electrical connection and the test module being electrically connected with sampling module.
According to the above technical scheme, it is preferable that the sampling module is NI-PCI-6612 board, the NI-PCI-6612
Board includes the independent relay of No. 8 high-speed counters and 32 tunnels.
A kind of test method of incremental photoelectric encoder test machine, which comprises the following steps:
A. the photoelectric encoder exports high-frequency pulse signal；
B. the sampling module receives high-frequency pulse signal and is sent to test module and detected；
C. for switching relay to different test voltages, the sampling module receives the high-frequency impulse letter of photoelectric encoder output
Number and be sent to test module and detected；
D. switch relay, the sampling module receives the high-frequency pulse signal of photoelectric encoder output, test module inspection
Survey the pulse signal quality under different shaft rotation status.
According to the above technical scheme, it is preferable that the high-frequency pulse signal includes 12 road pulse signals.
According to the above technical scheme, it is preferable that the shaft rotation status includes revolving speed and direction of rotation.
The beneficial effects of the present invention are:
The high-frequency pulse signal of tested photoelectric encoder output is received by sampling module, includes high speed in sampling module
Counter, so that each road high-frequency signal of output and is transmitted to test module test encoder by high-speed counter precise acquisition
Rotate a circle the number of pulses of output, can essence per the phase relation between the duty ratio of pulse signal and each road pulse all the way
Really acquisition high-frequency pulse signal, testing efficiency are high.
Detailed description of the invention
Fig. 1 is schematic view of the front view of the invention.
In figure: 1. shafts, 2. photoelectric encoders, 3. driving devices, 4. sampling modules, 5. test modules, 6. high-speed countings
Device, 7. relays.
Specific embodiment
In order to make those skilled in the art more fully understand technical solution of the present invention, with reference to the accompanying drawing and most
The present invention is described in further detail for good embodiment.
As shown, the present invention includes driving device 3 and the affixed shaft 1 of driving device 3 and the affixed photoelectricity of shaft 1
Encoder 2 and the test cell being electrically connected with photoelectric encoder 2, the driving device 3 are motor, and the test cell includes
The sampling module 4 being electrically connected with photoelectric encoder 2 and the test module 5 being electrically connected with sampling module 4, tested photoelectricity are compiled
The high-frequency pulse signal that code device 2 exports is received by sampling module 4, includes high-speed counter 6 in sampling module 4, so that output
Each road high-frequency signal is transmitted to 5 test encoder of test module and is rotated a circle the arteries and veins of output by 6 precise acquisition of high-speed counter
Quantity is rushed, it, can precise acquisition high-frequency impulse letter per the phase relation between the duty ratio of pulse signal and each road pulse all the way
Number, testing efficiency is high.
According to above-described embodiment, it is preferable that the sampling module 4 is NI-PCI-6612 board, the NI-PCI-6612
Board include the independent relays 7 in the tunnel of No. 8 high-speed counter 6 and 32, due to full signal encoder have 12 road pulse signals, 8
The setting of the independent relay 7 in the tunnel of road high-speed counter 6 and 32 can by switching relay 7 respectively to each road pulse signal into
Row is sampled and is detected, in addition to this it is possible to be detected contorted by switch test voltage, test revolving speed and direction of rotation
One-stop global function test is realized in influence of the height of state and input voltage to signal quality.
A kind of test method of 2 test machine of incremental photoelectric encoder, which comprises the following steps:
A. the photoelectric encoder 2 exports high-frequency pulse signal；
B. the sampling module 4 receives high-frequency pulse signal and is sent to test module 5 and detected；
C. switching relay 7 to different test voltages, the sampling module 4 receive the high frequency arteries and veins that photoelectric encoder 2 exports
It rushes signal and is sent to test module 5 and detected；
D. switch relay 7, the sampling module 4 receives the high-frequency pulse signal that photoelectric encoder 2 exports, test module
Pulse signal quality under different 1 rotation status of shaft of 5 detections.
According to above-described embodiment, it is preferable that the high-frequency pulse signal includes 12 road pulse signals, due to a full signal
Encoder have 12 road pulse signals, including A, B, Z, U, V, W, Can by switching after
Electric appliance 7 is sampled and is detected to each road pulse signal respectively.
According to above-described embodiment, it is preferable that 1 rotation status of shaft includes revolving speed and direction of rotation, can be passed through
Influence of the rotation status to signal quality is detected in switch test revolving speed and direction of rotation, and detection function is comprehensive, detection efficiency
It is high.
The high-frequency pulse signal that tested photoelectric encoder 2 exports is received by sampling module 4, includes in sampling module 4
High-speed counter 6 so that output each road high-frequency signal by 6 precise acquisition of high-speed counter, and be transmitted to test module 5 test
Encoder rotates a circle the number of pulses of output, closes per the phase all the way between the duty ratio of pulse signal and each road pulse
System, can precise acquisition high-frequency pulse signal, testing efficiency is high.
The above is only a preferred embodiment of the present invention, it is noted that for the ordinary skill people of the art
For member, various improvements and modifications may be made without departing from the principle of the present invention, these improvements and modifications are also answered
It is considered as protection scope of the present invention.
Claims (5)
1. a kind of incremental photoelectric encoder test machine, which is characterized in that including driving device, turn affixed with driving device
Axis, the photoelectric encoder affixed with shaft and the test cell being electrically connected with photoelectric encoder, the test cell include with
The sampling module of photoelectric encoder electrical connection and the test module being electrically connected with sampling module.
2. a kind of incremental photoelectric encoder test machine according to claim 1, which is characterized in that the sampling module is
NI-PCI-6612 board, the NI-PCI-6612 board include the independent relay of No. 8 high-speed counters and 32 tunnels.
3. a kind of test method of incremental photoelectric encoder test machine, which comprises the following steps:
A. the photoelectric encoder exports high-frequency pulse signal；
B. the sampling module receives high-frequency pulse signal and is sent to test module and detected；
C. for switching relay to different test voltages, the sampling module receives the high-frequency pulse signal of photoelectric encoder output simultaneously
Test module is sent to be detected；
D. switch relay, the sampling module receives the high-frequency pulse signal of photoelectric encoder output, and test module detects not
With the pulse signal quality under shaft rotation status.
4. a kind of test method of incremental photoelectric encoder test machine according to claim 3, which is characterized in that the height
Frequency pulse signal includes 12 road pulse signals.
5. a kind of test method of incremental photoelectric encoder test machine according to claim 3, which is characterized in that described turn
Axis rotation status includes revolving speed and direction of rotation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811315677.9A CN109489707A (en) | 2018-11-06 | 2018-11-06 | Incremental photoelectric encoder testing machine and testing method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201811315677.9A CN109489707A (en) | 2018-11-06 | 2018-11-06 | Incremental photoelectric encoder testing machine and testing method |
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| CN109489707A true CN109489707A (en) | 2019-03-19 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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| CN201464879U (en) * | 2009-06-30 | 2010-05-12 | 上海电器科学研究所（集团）有限公司 | Programmable controller with multi-circuit high-speed pulse output and high-speed counting functions |
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| CN202133407U (en) * | 2011-05-18 | 2012-02-01 | 上海宝钢工业检测公司 | Incremental encoder acquisition signal and load function test signal conversion interface |
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| CN106933215A (en) * | 2017-03-09 | 2017-07-07 | 北京宇航系统工程研究所 | A kind of telemetry system external tapping generalized equivalent device based on PXI buses |
| CN107064562A (en) * | 2017-04-20 | 2017-08-18 | 吉林宇恒光电仪器有限责任公司 | A kind of caliberating device of photoelectric encoder output speed error |
| CN108534817A (en) * | 2018-04-16 | 2018-09-14 | 吉林大学 | Grating encoder reliability test |
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- 2018-11-06 CN CN201811315677.9A patent/CN109489707A/en active Pending
Patent Citations (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2476824Y (en) * | 2001-04-19 | 2002-02-13 | 安徽工业大学 | Automatic testing device for property of photoelectric coder and speedometer |
| CN201107393Y (en) * | 2007-09-21 | 2008-08-27 | 北京工业大学 | Synchronization / coordinating controller performance test platform |
| CN201464879U (en) * | 2009-06-30 | 2010-05-12 | 上海电器科学研究所（集团）有限公司 | Programmable controller with multi-circuit high-speed pulse output and high-speed counting functions |
| CN101639337A (en) * | 2009-09-07 | 2010-02-03 | 北京航天控制仪器研究所 | Real-time measurement method of dynamic radius and dynamic misalignment angle of precision centrifuge and device thereof |
| CN101881637A (en) * | 2010-06-22 | 2010-11-10 | 上海理工大学 | Encoder test system based on virtual instrument |
| CN202133407U (en) * | 2011-05-18 | 2012-02-01 | 上海宝钢工业检测公司 | Incremental encoder acquisition signal and load function test signal conversion interface |
| CN205280113U (en) * | 2015-12-22 | 2016-06-01 | 南车株洲电力机车研究所有限公司 | Testing arrangement of generator incremental encoder |
| CN106933215A (en) * | 2017-03-09 | 2017-07-07 | 北京宇航系统工程研究所 | A kind of telemetry system external tapping generalized equivalent device based on PXI buses |
| CN107064562A (en) * | 2017-04-20 | 2017-08-18 | 吉林宇恒光电仪器有限责任公司 | A kind of caliberating device of photoelectric encoder output speed error |
| CN108534817A (en) * | 2018-04-16 | 2018-09-14 | 吉林大学 | Grating encoder reliability test |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
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Effective date of registration: 20200716 Address after: No.99, zhuangchi Middle Road, ganyao Town, Jiashan County, Jiaxing City, Zhejiang Province Applicant after: DORNA TECHNOLOGY Co.,Ltd. Address before: 300 000 No. 13, Ziyuan Road, Huayuan Industrial Zone, Binhai High-tech Zone, Nankai District, Tianjin - B-601-1 Applicant before: BEIHEMAN INDUSTRIAL TECHNOLOGY (TIANJIN) Co.,Ltd. |
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Application publication date: 20190319 |