CN113125805A - Standard machine for calibrating moving speed detector of cross beam of testing machine - Google Patents
Standard machine for calibrating moving speed detector of cross beam of testing machine Download PDFInfo
- Publication number
- CN113125805A CN113125805A CN202110377484.1A CN202110377484A CN113125805A CN 113125805 A CN113125805 A CN 113125805A CN 202110377484 A CN202110377484 A CN 202110377484A CN 113125805 A CN113125805 A CN 113125805A
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- measuring wheel
- reel
- measuring
- wheel shaft
- standard machine
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- 230000005540 biological transmission Effects 0.000 claims abstract description 51
- 230000007246 mechanism Effects 0.000 claims abstract description 33
- 238000004804 winding Methods 0.000 claims abstract description 23
- 230000001360 synchronised effect Effects 0.000 claims abstract description 12
- 239000002356 single layer Substances 0.000 claims abstract description 5
- 238000005259 measurement Methods 0.000 claims description 10
- 238000006073 displacement reaction Methods 0.000 claims description 8
- 230000001133 acceleration Effects 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- BGOFCVIGEYGEOF-UJPOAAIJSA-N helicin Chemical compound O[C@@H]1[C@@H](O)[C@H](O)[C@@H](CO)O[C@H]1OC1=CC=CC=C1C=O BGOFCVIGEYGEOF-UJPOAAIJSA-N 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000012795 verification Methods 0.000 description 1
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P21/00—Testing or calibrating of apparatus or devices covered by the preceding groups
- G01P21/02—Testing or calibrating of apparatus or devices covered by the preceding groups of speedometers
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Abstract
The invention relates to a standard machine for calibrating a moving speed detector of a crossbeam of a testing machine, which comprises a standard machine frame, wherein at least one measuring wheel axle and at least one reel axle are rotatably assembled on the standard machine frame, a measuring wheel is assembled on the measuring wheel axle in a rotation stopping manner, a reel is assembled on the reel axle in a rotation stopping manner, the measuring wheel axle is in transmission connection with the reel axle through a synchronous transmission mechanism, a rotation driving mechanism for driving the measuring wheel axle or the reel axle to rotate is further arranged on the standard machine frame, one end of the standard machine is wound on the reel in a single layer manner, the other end of the standard machine is used for winding a measuring pull rope connected with a pull rope of the corresponding moving speed detector of the crossbeam of the testing machine after passing through the measuring wheel, and a rotating speed measuring instrument for detecting the rotating speed of the. The invention aims to provide a standard machine for calibrating a moving speed detector of a cross beam of a testing machine, which can calibrate the speed of a pull rope of the moving speed detector of the cross beam of the testing machine.
Description
Technical Field
The invention relates to a standard machine for calibrating a tester beam moving speed detector in the field of calibration and verification.
Background
The moving speed and the moving displacement of the testing machine crossbeam in the laboratory need to be detected through a testing machine crossbeam moving speed detector, the testing machine crossbeam moving speed detector comprises a detector support, a winding drum is arranged on the detector support, and a pull rope is wound on the winding drum.
When the device is used, one end of the pull rope is connected with the cross beam of the testing machine, when the testing machine drives the cross beam to move, the cross beam drives the pull rope to move, and the moving speed detector of the cross beam of the testing machine reflects the speed and the displacement of the cross beam by detecting the speed and the displacement of the pull rope. According to corresponding tracing requirements, a standard device with higher precision is also required to be used for calibrating a speed sensor and a displacement sensor in the tester beam moving speed detector, and the standard device specially used for calibrating the tester beam moving speed detector is absent at present.
Disclosure of Invention
The invention aims to provide a standard machine for calibrating a moving speed detector of a cross beam of a testing machine, which can calibrate the speed of a pull rope of the moving speed detector of the cross beam of the testing machine.
In order to solve the technical problems, the technical scheme of the standard machine for calibrating the tester beam moving speed detector is as follows:
the standard machine comprises a standard machine frame, wherein at least one measuring wheel shaft and at least one reel wheel shaft are rotatably assembled on the standard machine frame, a measuring wheel is assembled on the measuring wheel shaft in a rotation stopping manner, a reel is assembled on the reel wheel shaft in a rotation stopping manner, the measuring wheel shaft is in transmission connection with the reel wheel shaft through a synchronous transmission mechanism, a rotation driving mechanism for driving the measuring wheel shaft or the reel wheel shaft to rotate is further arranged on the standard machine frame, one end of the standard machine frame is used for winding on the reel in a single layer manner, the other end of the standard machine frame is used for winding a measuring pull rope connected with a pull rope of a corresponding tester beam moving speed detector behind the measuring wheel, and a rotating speed measuring instrument for detecting the rotating speed of the measuring wheel shaft is arranged on the standard machine frame.
The measuring pull rope is provided with length scales.
A rotation stop key is arranged between the reel and the reel axle, the reel is matched with the reel axle in a guiding and moving mode along the axial direction of the reel axle, and a spiral winding rope groove is formed in the reel.
The standard machine frame comprises a fixed support and a movable support assembled on the fixed support in a left-right direction guiding and moving mode, at least two measuring wheel shafts are arranged on the fixed support in parallel at intervals in the left-right direction, the rotating speeds of the two measuring wheel shafts are different due to the fact that the two corresponding measuring wheel shafts are connected through a speed change mechanism in a transmission mode, the reel wheel shafts are assembled on the movable support in a rotating mode, the synchronous transmission mechanism comprises measuring wheel transmission gears fixed on the corresponding measuring wheel shafts, the synchronous transmission mechanism further comprises movable support transmission gears assembled on the movable support in a rotating mode, the movable support transmission gears are connected with the reel wheel shafts in a transmission mode, the movable support moves left and right, and the movable support transmission gears can be selected to be meshed with the corresponding measuring wheel transmission gears, and therefore the reels.
The number of the measuring wheel shafts is three, the three measuring wheel shafts from left to right are respectively a left measuring wheel shaft, a middle measuring wheel shaft and a right measuring wheel shaft, the speed change mechanism between the left measuring wheel shaft and the middle measuring wheel shaft is a speed increasing mechanism, the speed change mechanism between the middle measuring wheel shaft and the right measuring wheel shaft is a speed increasing mechanism, the rotation driving mechanism is connected with one measuring wheel shaft, the rotating speed of the left measuring wheel shaft is lower than that of the middle measuring wheel shaft, and the rotating speed of the middle measuring wheel shaft is lower than that of the right measuring wheel shaft.
The reel shaft has two, and interval arrangement about two reel shafts all is provided with the reel drive gear with the driving of movable support drive gear interlock on each reel shaft, is provided with two on the measuring wheel shaft measuring wheel, two measuring wheel are preceding measuring wheel and back measuring wheel respectively, measure the stay cord and link to each other first measurement stay cord with the stay cord of one of them testing machine crossbeam moving speed detector after measuring after taking turns including winding around on one of them reel, measure the stay cord and still measure the stay cord including winding around the stay cord that the back was measured after taking turns to and another testing machine crossbeam moving speed detector on another reel and link to each other the second.
The invention has the beneficial effects that: when the pull rope speed of the tester beam moving speed detector needs to be calibrated, the pull rope of the tester beam moving speed detector is connected with the measuring pull rope, under the driving of a rotary driving mechanism, the reel and the measuring wheel rotate synchronously, the reel is wound by one circle of the measuring pull rope, the rotating speed of the reel is measured by a rotating speed measuring instrument, thereby the linear speed of the measuring pull rope, namely the pull rope linear speed of the tester beam moving speed detector is obtained, the calibration of the pull rope linear speed of the tester beam moving speed detector is realized, the synchronous action of the reel and the measuring wheel is realized, the measuring pull rope is ensured not to slide relative to the measuring wheel, the measuring accuracy is ensured, the single-layer winding of the measuring pull rope on the reel is avoided, and the influence on the linear speed of the measuring pull rope caused by.
Furthermore, the length of the measuring pull rope wound on the winding wheel can be obtained by setting length scales on the measuring pull rope, so that the movement displacement of the pull rope of the tester beam movement speed detector can be calibrated.
Furthermore, at least two measuring wheel axles are arranged, the rotating speeds of the different measuring wheel axles are different, so that the calibration of the tester beam moving speed detector can be realized at different speeds, and the movable support transmission gear can be selectively meshed with the corresponding measuring wheel transmission gear through the movement of the movable support in the face of different rotating speeds of the different measuring wheel axles, so that the synchronous rotation of the reel and the corresponding measuring wheel is realized.
Further, reel and back reel before setting up on a reel shaft, measure the stay cord through first measurement stay cord, second and respectively with the cooperation that corresponds the reel, can realize once calibrating two testing machine crossbeam displacement speed detectors.
Drawings
FIG. 1 is a schematic block diagram of one embodiment of the present invention;
FIG. 2 is a schematic view of the axle of the measuring wheel of FIG. 1 engaged with a fixed bracket;
FIG. 3 is a schematic view of the engagement of the reel axle and the movable bracket of FIG. 1;
fig. 4 is a schematic diagram of the calibration principle in the present invention.
Detailed Description
The embodiment of the standard machine for calibrating the tester beam moving speed detector is shown in figures 1-4:
including the standard machine frame, the standard machine frame includes fixed bolster 1 and removes the movable support 2 of assembly on the fixed bolster along controlling the direction, and the fixed bolster includes fixed bolster preceding curb plate 3, fixed bolster posterior lateral plate, fixed bolster left side board 4, fixed bolster right side board 5 and fixed bolster bottom plate 17, and the height that highly is less than fixed bolster preceding curb plate 3 and fixed bolster posterior lateral plate of fixed bolster 4, fixed bolster right side board 5 of fixed bolster left side board, fixed bolster right side board.
The movable support 2 comprises a movable support bottom plate 16 which is guided to move and matched with a fixed support bottom plate, a movable support front side plate 13 and a movable support rear side plate are respectively fixed at the front end and the rear end of the movable support bottom plate, a transmission lead screw 19 with a rotation axis extending along the left and right direction is rotatably assembled on the fixed support left side plate 4 and the fixed support right side plate 5, the transmission lead screw 19 is in threaded fit with the movable support bottom plate 16, the whole movable support 2 forms a screw nut structure, and a stepping motor 18 for driving the transmission lead screw to rotate is arranged on the fixed support right side plate.
The fixed bolster preceding curb plate 3 of fixed bolster and the last rotation of fixed bolster posterior lateral plate are equipped with three measuring wheel shaft, three measuring wheel shaft is left side measuring wheel shaft 6 respectively from left to right, middle measuring wheel shaft 7 and right side measuring wheel shaft 8, connect through speed change mechanism 31 transmission between the adjacent measuring wheel shaft, in this embodiment, the speed change mechanism between left side measuring wheel shaft 6 and the middle measuring wheel shaft 7 is gear acceleration rate mechanism, the speed change mechanism between middle measuring wheel shaft 7 and the right side measuring wheel shaft 8 is gear acceleration rate mechanism, two gear acceleration rate mechanisms all set up in the front side of fixed bolster preceding curb plate 3. The rear side of the rear side plate of the fixed support is provided with a rotation driving mechanism connected with the axle of the middle measuring wheel, the rotation driving mechanism in the embodiment is a motor 23, and the motor shaft of the motor 23 is fixedly connected with the axle 7 of the middle measuring wheel. The rotating speed of the left measuring wheel axle 6 is lower than that of the middle measuring wheel axle 7, and the rotating speed of the middle measuring wheel axle 7 is lower than that of the right measuring wheel axle 8.
Two measuring wheels are fixed on the wheel shafts of the measuring wheels, the two measuring wheels on the same wheel shaft are a front measuring wheel 21 and a rear measuring wheel 22 respectively, and a rotating speed measuring instrument for detecting the rotating speed of the wheel shaft of the corresponding measuring wheel is arranged on the fixed support.
Move movable support's movable support preceding curb plate 13 and the last rotation of movable support posterior lateral plate 24 and be equipped with two reel axles 15 of controlling parallel arrangement, all be equipped with reel 26 along the fore-and-aft direction removal on each reel axle, the reel passes through spline 14 and corresponds reel axle 15 stall cooperation, be provided with spiral helicine winding rope groove 27 on the reel, when measuring the stay cord winding on winding rope groove, it can the winding of round winding on the winding rope groove that corresponds to measure the stay cord, it can produce a fore-and-aft direction pulling force to winding rope groove to measure the stay cord, the reel can move the reel axle relatively, and avoid measuring the stay cord and twine the stack in same position.
The standard machine further comprises one end used for single-layer winding on the reels, the other end used for winding the measuring rope connected with the rope of the corresponding tester beam moving speed detector behind the measuring wheel, in the embodiment, the measuring rope comprises a first measuring rope 20 wound on one of the reels and connected with the rope of the first tester beam moving speed detector 28 after being changed around the front measuring wheel 21, and a second measuring rope 30 wound on the other reel and connected with the rope of the second tester beam moving speed detector 29 after being changed around the rear measuring wheel 22.
The measuring wheel axle is in transmission connection with the reel axles through a synchronous transmission mechanism, the synchronous transmission mechanism comprises a movable support transmission gear 10 which is rotatably assembled on a movable support, each reel axle 15 is provided with a reel axle transmission gear 12, the movable support transmission gear 10 is in occlusion transmission with one reel axle transmission gear, the movable support transmission gear is in transmission connection with the other reel axle transmission gear through a reversing gear 11, and the rotation directions of the two reel axles are opposite. And a measuring wheel transmission gear 9 is fixed on each measuring wheel shaft, the movable support moves left and right, and the movable support transmission gear 10 can be selectively occluded with the corresponding measuring wheel transmission gear 9, so that the synchronous rotation of the reel 15 and the corresponding measuring wheel is realized. In fig. 1, a transmission gear 10 of the movable bracket is in meshing transmission with a transmission gear 9 of the measuring wheel on the axle of the middle measuring wheel.
The measurement principle is shown in fig. 4: one end of the first measuring rope 20 is wound on one of the reels, the other end is wound around the front measuring wheel 21 and then connected with the measuring rope of the first tester beam moving speed detector 28, one end of the second measuring rope 30 is wound on the other reel, the other end is wound around the rear measuring wheel 22 and then connected with the measuring rope of the second tester beam moving speed detector 29, the rope of one tester beam moving speed detector is connected to the left side of the front measuring wheel, and the rope of the other tester beam moving speed detector is connected to the right side of the rear measuring wheel. Taking two measuring wheels on a left measuring wheel shaft as an example, a motor inputs power by transmitting to a middle measuring wheel shaft, the left measuring wheel shaft rotates clockwise, the left reel wheel shaft rotates clockwise, the right reel wheel shaft rotates anticlockwise, the measurement stay cord paying-off calibration of one tester beam moving speed detector is realized, the measurement stay cord paying-off calibration of the other tester beam moving speed detector is realized, the motor rotates reversely, the measurement stay cord paying-off calibration of one tester beam moving speed detector can be realized, and the measurement stay cord paying-off calibration of the other tester beam moving speed detector is realized. When two measuring wheels on the axle of the middle measuring wheel need to be used, the measuring pull rope is moved to the corresponding measuring wheel on the axle of the middle measuring wheel, the moving support moves rightwards, the moving support transmission gear on the moving support is in meshing transmission with the measuring wheel transmission gear on the axle of the middle measuring wheel, namely, gear shifting is carried out, so that the measuring wheel on the axle of the middle measuring wheel can synchronously act with the corresponding reel, and the calibration of the other speed of the tester beam moving speed detector is realized.
According to the invention, the calibration precision can be improved by changing the diameter of the measuring wheel, because the measuring precision of the rotating speed measuring instrument is related to the rotating speed of the measured object, the winding wheel winds the measuring pull rope to provide a fixed linear speed for the measuring pull rope, and if the diameter of the measuring wheel is larger, the rotating speed of the axle of the measuring wheel is smaller. In other embodiments of the invention, the reversing gear on the moving bracket may not be provided; only one measuring wheel can be arranged on one measuring wheel axle, and only one reel axle can be arranged.
Finally, it should be noted that: the above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.
Claims (6)
1. The utility model provides a testing machine crossbeam moving speed detector calibration is with standard machine which characterized in that: the device comprises a standard machine frame, wherein at least one measuring wheel shaft and at least one reel wheel shaft are rotationally assembled on the standard machine frame, a measuring wheel is assembled on the measuring wheel shaft in a rotation stopping manner, a reel is assembled on the reel wheel shaft in a rotation stopping manner, the measuring wheel shaft is in transmission connection with the reel wheel shaft through a synchronous transmission mechanism, a rotation driving mechanism for driving the measuring wheel shaft or the reel wheel shaft to rotate is further arranged on the standard machine frame, one end of the standard machine frame is used for winding on the reel in a single layer manner, the other end of the standard machine frame is used for winding through a measuring pull rope connected with a pull rope of a corresponding tester beam moving speed detector, and a rotating speed measuring instrument for detecting the rotating speed of the measuring wheel shaft is arranged on the.
2. The standard machine of claim 1, wherein: the measuring pull rope is provided with length scales.
3. The standard machine of claim 1, wherein: a rotation stop key is arranged between the reel and the reel axle, the reel is matched with the reel axle in a guiding and moving mode along the axial direction of the reel axle, and a spiral winding rope groove is formed in the reel.
4. The standard machine of claim 1, wherein: the standard machine frame comprises a fixed support and a movable support assembled on the fixed support in a left-right direction guiding and moving mode, at least two measuring wheel shafts are arranged on the fixed support in parallel at intervals in the left-right direction, the rotating speeds of the two measuring wheel shafts are different due to the fact that the two corresponding measuring wheel shafts are connected through a speed change mechanism in a transmission mode, the reel wheel shafts are assembled on the movable support in a rotating mode, the synchronous transmission mechanism comprises measuring wheel transmission gears fixed on the corresponding measuring wheel shafts, the synchronous transmission mechanism further comprises movable support transmission gears assembled on the movable support in a rotating mode, the movable support transmission gears are connected with the reel wheel shafts in a transmission mode, the movable support moves left and right, and the movable support transmission gears can be selected to be meshed with the corresponding measuring wheel transmission gears, and therefore the reels.
5. The standard machine of claim 4, wherein: the number of the measuring wheel shafts is three, the three measuring wheel shafts from left to right are respectively a left measuring wheel shaft, a middle measuring wheel shaft and a right measuring wheel shaft, the speed change mechanism between the left measuring wheel shaft and the middle measuring wheel shaft is a speed increasing mechanism, the speed change mechanism between the middle measuring wheel shaft and the right measuring wheel shaft is a speed increasing mechanism, the rotation driving mechanism is connected with one measuring wheel shaft, the rotating speed of the left measuring wheel shaft is lower than that of the middle measuring wheel shaft, and the rotating speed of the middle measuring wheel shaft is lower than that of the right measuring wheel shaft.
6. The standard machine of claim 4, wherein: the reel wheel axle has two, and interval arrangement about two reel wheel axles all is provided with the reel drive gear who is connected with the transmission of movable support drive gear on each reel wheel axle, and the direction of rotation of two reel wheel axles is the same or opposite, is provided with two on the measuring wheel axle measuring wheel, two measuring wheel are preceding measuring wheel and back measuring wheel respectively, measure the stay cord and connect first measurement stay cord after and the stay cord of one of them testing machine crossbeam displacement speed detector including twining around the preceding measurement of warp on one of them reel, measure the stay cord still including twining around the continuous second measurement stay cord of measuring backward and another testing machine crossbeam displacement speed detector after the back of warp on another reel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110377484.1A CN113125805A (en) | 2021-04-08 | 2021-04-08 | Standard machine for calibrating moving speed detector of cross beam of testing machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110377484.1A CN113125805A (en) | 2021-04-08 | 2021-04-08 | Standard machine for calibrating moving speed detector of cross beam of testing machine |
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| Publication Number | Publication Date |
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| CN113125805A true CN113125805A (en) | 2021-07-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110377484.1A Pending CN113125805A (en) | 2021-04-08 | 2021-04-08 | Standard machine for calibrating moving speed detector of cross beam of testing machine |
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| JP2011112574A (en) * | 2009-11-27 | 2011-06-09 | Toyota Motor Corp | Alignment tester correcting device |
| CN102829745A (en) * | 2012-09-04 | 2012-12-19 | 常州市计量测试技术研究所 | Detection device of displacement and speed of movable cross beam of testing machine |
| CN103776584A (en) * | 2014-02-11 | 2014-05-07 | 重庆建设工业(集团)有限责任公司 | Torque and rotation speed standard machine |
| CN204988867U (en) * | 2015-10-16 | 2016-01-20 | 中南林业科技大学 | Metal material fatigue damage test system |
| US20200003669A1 (en) * | 2018-06-29 | 2020-01-02 | Illinois Tool Works Inc. | System for verification of testing machine speed |
| CN111443220A (en) * | 2020-04-01 | 2020-07-24 | 河南省计量科学研究院 | Calibration device for engine speed measuring instrument |
| CN212674956U (en) * | 2020-08-05 | 2021-03-09 | 中国人民解放军32382部队 | Helicopter revolution speed sensor detects calibrating device |
| CN112505359A (en) * | 2020-12-28 | 2021-03-16 | 中国人民解放军91550部队 | Calibration method of stay-supported speed measuring device |
-
2021
- 2021-04-08 CN CN202110377484.1A patent/CN113125805A/en active Pending
Patent Citations (11)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2006284336A (en) * | 2005-03-31 | 2006-10-19 | Tokimec Inc | Sensor assembling technique |
| CN200965472Y (en) * | 2006-11-08 | 2007-10-24 | 深圳市新三思材料检测有限公司 | Displacement, speed demarcation device for detecting the tester |
| JP2011112574A (en) * | 2009-11-27 | 2011-06-09 | Toyota Motor Corp | Alignment tester correcting device |
| CN102829745A (en) * | 2012-09-04 | 2012-12-19 | 常州市计量测试技术研究所 | Detection device of displacement and speed of movable cross beam of testing machine |
| CN103776584A (en) * | 2014-02-11 | 2014-05-07 | 重庆建设工业(集团)有限责任公司 | Torque and rotation speed standard machine |
| CN204988867U (en) * | 2015-10-16 | 2016-01-20 | 中南林业科技大学 | Metal material fatigue damage test system |
| US20200003669A1 (en) * | 2018-06-29 | 2020-01-02 | Illinois Tool Works Inc. | System for verification of testing machine speed |
| CN112534273A (en) * | 2018-06-29 | 2021-03-19 | 伊利诺斯工具制品有限公司 | System for verifying speed of test machine |
| CN111443220A (en) * | 2020-04-01 | 2020-07-24 | 河南省计量科学研究院 | Calibration device for engine speed measuring instrument |
| CN212674956U (en) * | 2020-08-05 | 2021-03-09 | 中国人民解放军32382部队 | Helicopter revolution speed sensor detects calibrating device |
| CN112505359A (en) * | 2020-12-28 | 2021-03-16 | 中国人民解放军91550部队 | Calibration method of stay-supported speed measuring device |
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Application publication date: 20210716 |
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