CN109520547A - High-low temperature precision detection device and detection method for photoelectric encoder - Google Patents
High-low temperature precision detection device and detection method for photoelectric encoder Download PDFInfo
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- CN109520547A CN109520547A CN201811312017.5A CN201811312017A CN109520547A CN 109520547 A CN109520547 A CN 109520547A CN 201811312017 A CN201811312017 A CN 201811312017A CN 109520547 A CN109520547 A CN 109520547A
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- photoelectric encoder
- low temperature
- pulse signal
- test
- sampling module
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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 a high and low temperature precision detection device and a detection method of a photoelectric encoder, which comprises a high and low temperature impact test box, a rotating shaft, the photoelectric encoder and a test unit, wherein the test unit comprises a sampling module and a test module, a high-frequency pulse signal output by the photoelectric encoder arranged in the high and low temperature impact test box is received by the sampling module, the sampling module comprises a high-speed counter, so that each path of output high-frequency signal is accurately collected by the high-speed counter, and transmitted to a test module for testing the number of pulses output by the encoder after one rotation, the duty ratio of each pulse signal and the phase relationship among the pulses, but accurate collection high frequency pulse signal, efficiency of software testing is high, and in addition, test module output pulse signal test result under each temperature has realized carrying out the measuring of precision to photoelectric encoder at high low temperature impact in-process.
Description
Technical field
The present invention relates to electronic measuring technology field more particularly to a kind of photoelectric encoder high/low temperature accuracy detecting device and
Detection 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, due to needing to guarantee photoelectric coding
Measurement accuracy of the device under high and low temperature environment, traditional test are all to be restored to room temperature after carrying out high/low-temperature impact to encoder
Test, without dynamic performance testing of encoder during high/low-temperature impact.
Summary of the invention
The technical problem to be solved by the present invention is to overcome the deficiencies in the prior art, a kind of photoelectric encoder is provided
High/low temperature accuracy detecting device and detection method.
The present invention is to be achieved by the following technical programs:
A kind of photoelectric encoder high/low temperature accuracy detecting device, which is characterized in that including low temperature impact test box, turn
Axis, photoelectric encoder and the test cell being electrically connected with photoelectric encoder, the low temperature impact test box is interior to be equipped with one group
Shaft, axially distributed in the shaft to be connected with one group of photoelectric encoder, the test cell includes and photoelectric encoder electricity
The sampling module of 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.
According to the above technical scheme, it is preferable that the relay square being electrically connected with sampling module is equipped in the test cell
Battle array card.
A kind of detection method of photoelectric encoder high/low temperature accuracy detecting device, which comprises the following steps:
A. the photoelectric encoder being set in low temperature impact test box exports high-frequency pulse signal；
B. switching relay makes sampling module receive corresponding high-frequency pulse signal；
C. the test module detects each technical indicator of pulse signal according to the temperature change in low temperature impact test box；
D. 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 detection different temperatures under each technical indicator of pulse signal；
E. switch relay, the sampling module receives the high-frequency pulse signal of photoelectric encoder output, test module inspection
Each technical indicator of pulse signal when surveying different shaft rotation status at each temperature.
According to the above technical scheme, it is preferable that each technical indicator includes that photoelectric encoder rotates a circle the arteries and veins of output
Rush quantity, per the phase relation between the duty ratio of pulse signal and each road pulse all the way.
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 for the photoelectric encoder output being placed in inside low temperature impact test box is received by sampling module,
It include high-speed counter in sampling module, so that each road high-frequency signal of output and is transmitted to by high-speed counter precise acquisition
Test module test encoder rotates a circle the number of pulses of output, per the duty ratio of pulse signal all the way and each road pulse it
Between phase relation, can precise acquisition high-frequency pulse signal, testing efficiency is high, and in addition to this, test module exports at each temperature
Pulsed test signal is as a result, realize the detection for carrying out precision to photoelectric encoder during high/low-temperature impact.
Detailed description of the invention
Fig. 1 is schematic perspective view of the invention.
In figure: 1. shafts, 2. low temperature impact test boxes, 3. photoelectric encoders, 4. relays, 5. high-speed counters,
6.NI-PCI-6612 board, 7. test modules, 8. relay matrix cards.
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 low temperature impact test box 2, shaft 1, photoelectric encoder 3 and and photoelectric coding
The test cell that device 3 is electrically connected, the low temperature impact test box 2 is interior to be equipped with one group of shaft 1, and the shaft 1 is rushed with high/low temperature
The rotation connection of chamber 2 is hit, 1 one end of shaft, which is run through 2 outer wall of low temperature impact test box and is connected to the motor, to be connect, the shaft 1
Above axially distributed to be connected with one group of photoelectric encoder 3, the test cell includes the sampling mould being electrically connected with photoelectric encoder 3
Block and the test module 7 being electrically connected with sampling module, the photoelectric encoder 3 being placed in inside low temperature impact test box 2 export
High-frequency pulse signal received by sampling module, in sampling module include high-speed counter 5 so that output each road high-frequency signal
By 5 precise acquisition of high-speed counter, and it is transmitted to 7 test encoder of test module and rotates a circle the number of pulses of output, it is each
Phase relation between the duty ratio of road pulse signal and each road pulse, can precise acquisition high-frequency pulse signal, testing efficiency
Height, in addition to this, test module 7 output at each temperature pulsed test signal as a result, realize it is right during high/low-temperature impact
The detection of the progress precision of photoelectric encoder 3.
According to above-described embodiment, it is preferable that the sampling module is NI-PCI-6612 board 6, the NI-PCI-6612
Board 6 include the independent relays 4 in the tunnel of No. 8 high-speed counter 5 and 32, due to full signal encoder have 12 road pulse signals, 8
The setting of the independent relay 4 in the tunnel of road high-speed counter 5 and 32 can by switching relay 4 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.
According to above-described embodiment, it is preferable that be equipped with 4 matrix of relay being electrically connected with sampling module in the test cell
Card, can detect multiple photoelectric encoders 3 simultaneously in low temperature impact test box 2, and setting 4 matrix card of relay can switch
More multiplex pulse signal improves testing efficiency.
A kind of detection method of 3 high/low temperature accuracy detecting device of photoelectric encoder, which comprises the following steps:
A. the photoelectric encoder 3 being set in low temperature impact test box 2 exports high-frequency pulse signal；
B. switching relay 4 makes sampling module receive corresponding high-frequency pulse signal；
C. the test module 7 refers to according to temperature change detection each technology of pulse signal in low temperature impact test box 2
Mark；
D. switching relay 4 to different test voltages, the sampling module receive the high-frequency impulse that photoelectric encoder 3 exports
Signal is simultaneously sent to each technical indicator of pulse signal under the detection different temperatures of test module 7；
E. switch relay 4, the sampling module receives the high-frequency pulse signal that photoelectric encoder 3 exports, test module 7
Each technical indicator of pulse signal when detecting different 1 rotation status of shaft at each temperature.
According to above-described embodiment, it is preferable that each technical indicator includes that photoelectric encoder 3 rotates a circle the pulse of output
Quantity, every phase relation between the duty ratio of pulse signal and each road pulse all the way, since a full signal encodes utensil
Have a 12 road pulse signals, including A, B, Z, U, V, W,It can be divided by switching relay 4
The road Bie Duige pulse signal is sampled and is detected.
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 the photoelectric encoder 3 being placed in inside low temperature impact test box 2 exports is connect by sampling module
It receives, includes high-speed counter 5 in sampling module, so that each road high-frequency signal of output is by 5 precise acquisition of high-speed counter, and pass
It transports to 7 test encoder of test module to rotate a circle the number of pulses of output, per the duty ratio of pulse signal and each road all the way
Phase relation between pulse, can precise acquisition high-frequency pulse signal, testing efficiency is high, and in addition to this, test module 7 exports respectively
At a temperature of pulsed test signal as a result, realize during high/low-temperature impact to photoelectric encoder 3 carry out precision detection.
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 (6)
1. a kind of photoelectric encoder high/low temperature accuracy detecting device, which is characterized in that including low temperature impact test box, shaft,
Photoelectric encoder and the test cell being electrically connected with photoelectric encoder, the low temperature impact test box is interior to be equipped with one group turn
Axis, axially distributed in the shaft to be connected with one group of photoelectric encoder, the test cell includes being electrically connected with photoelectric encoder
The sampling module connect and the test module being electrically connected with sampling module.
2. a kind of photoelectric encoder high/low temperature accuracy detecting device according to claim 1, which is characterized in that the sampling mould
Block is NI-PCI-6612 board, and the NI-PCI-6612 board includes the independent relay of No. 8 high-speed counters and 32 tunnels.
3. a kind of photoelectric encoder high/low temperature accuracy detecting device according to claim 2, which is characterized in that the test is single
The relay matrix card being electrically connected with sampling module is equipped in first.
4. a kind of detection method of photoelectric encoder high/low temperature accuracy detecting device, which comprises the following steps:
A. the photoelectric encoder being set in low temperature impact test box exports high-frequency pulse signal；
B. switching relay makes sampling module receive corresponding high-frequency pulse signal；
C. the test module detects each technical indicator of pulse signal according to the temperature change in low temperature impact test box；
D. for switching relay to different test voltages, the sampling module receives the high-frequency pulse signal of photoelectric encoder output simultaneously
It is sent to each technical indicator of pulse signal under test module detection different temperatures；
E. switch relay, the sampling module receives the high-frequency pulse signal of photoelectric encoder output, and test module detects not
With each technical indicator of pulse signal when shaft rotation status at each temperature.
5. a kind of detection method of photoelectric encoder high/low temperature accuracy detecting device according to claim 4, which is characterized in that
Each technical indicator include photoelectric encoder rotate a circle output number of pulses, per the duty ratio of pulse signal all the way and
Phase relation between each road pulse.
6. a kind of detection method of photoelectric encoder high/low temperature accuracy detecting device according to claim 4, which is characterized in that
The shaft rotation status includes revolving speed and direction of rotation.
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| CN201811312017.5A CN109520547A (en) | 2018-11-06 | 2018-11-06 | High-low temperature precision detection device and detection method for photoelectric encoder |
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| CN201811312017.5A CN109520547A (en) | 2018-11-06 | 2018-11-06 | High-low temperature precision detection device and detection method for photoelectric encoder |
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| CN110275146A (en) * | 2019-07-18 | 2019-09-24 | 北京道锐达科技有限公司 | A kind of radar the high and low temperature test system and method |
| CN111307178A (en) * | 2020-03-17 | 2020-06-19 | 中国科学院微小卫星创新研究院 | Degradation test method of passive high-power single machine for navigation |
| CN116892960A (en) * | 2023-09-06 | 2023-10-17 | 西安甘鑫科技股份有限公司 | Angle rotary encoder suitable for ultralow temperature environment |
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| CN110275146A (en) * | 2019-07-18 | 2019-09-24 | 北京道锐达科技有限公司 | A kind of radar the high and low temperature test system and method |
| CN111307178A (en) * | 2020-03-17 | 2020-06-19 | 中国科学院微小卫星创新研究院 | Degradation test method of passive high-power single machine for navigation |
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| CN116892960A (en) * | 2023-09-06 | 2023-10-17 | 西安甘鑫科技股份有限公司 | Angle rotary encoder suitable for ultralow temperature environment |
| CN116892960B (en) * | 2023-09-06 | 2023-12-08 | 西安甘鑫科技股份有限公司 | Angle rotary encoder suitable for ultralow temperature environment |
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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: 20190326 |