CN111060717A - Angular velocity sensor testing machine - Google Patents
Angular velocity sensor testing machine Download PDFInfo
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- CN111060717A CN111060717A CN201911337688.1A CN201911337688A CN111060717A CN 111060717 A CN111060717 A CN 111060717A CN 201911337688 A CN201911337688 A CN 201911337688A CN 111060717 A CN111060717 A CN 111060717A
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- turntable
- angular velocity
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- sprocket
- servo motor
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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 provides an angular velocity sensor testing machine. The utility model provides an angular velocity sensor testing machine, includes frame, the control unit, servo motor, drive wheel, pivot and survey carousel, servo motor fixes in the frame, the control unit with servo motor connects, servo motor's output shaft with the drive wheel transmission is connected, a terminal surface of drive wheel passes through the pivot with the bottom surface of survey carousel is connected, the pivot activity is worn to establish in the frame, the top surface of survey carousel is equipped with the sensor standing groove that awaits measuring, be equipped with the encoder on the drive wheel, the encoder with the control unit communication connection. The invention has simple structure, convenient use and low manufacturing cost, can conveniently and intuitively obtain more accurate data to be tested during test calibration, and has higher user experience.
Description
Technical Field
The invention relates to the field of testing instruments, in particular to an angular velocity sensor testing machine.
Background
The angular velocity sensor is a precise and sensitive electronic component, various angular velocity sensors are available in the market at present, and the angular velocity sensor is widely applied to automobile navigation, position control and attitude control of moving objects and other occasions requiring precise angle measurement. The most common angular velocity sensor is a mobile phone, for example, a racing car hand game is an interaction mode for generating the left-right swing of an automobile through the action of the angular velocity sensor. Besides mobile phones, angular velocity sensors are also widely used in the fields of AR/VR and unmanned aerial vehicles. Is a key component for measuring and controlling parameters such as angular velocity, angular acceleration and the like.
Before the angular velocity sensor is used, accurate, real-time and comprehensive testing of various performance parameters of the angular velocity sensor is a basic guarantee for mastering the performance of the angular velocity sensor. The existing methods for testing parameters of the angular velocity sensor are various, and corresponding devices and equipment for testing the angular velocity sensor are various, and the devices and the equipment have the following defects: the operation is complicated, and the test process is complex; the test precision is not high, and the reliability of the test result is not high; the noise and vibration of the machine are increased under higher vibration; the test result can not be obtained quickly and conveniently, and comprehensive analysis and research can be carried out on the test result, so that the user experience is not high. Therefore, how to solve the problems of the existing angular velocity sensor testing device that the operation is complicated, the testing process is complex, the reliability of the testing result is not high, the testing result cannot be obtained quickly and conveniently, and the comprehensive analysis and research on the testing result are always the key points to which the technicians in the field pay attention.
Disclosure of Invention
The invention aims to overcome the defects of complex operation and complex test process in the background technology; the test precision is not high, and the reliability of the test result is not high; the noise and vibration of the machine are increased under higher vibration; the testing machine for the angular velocity sensor has the problems that the testing result cannot be quickly and conveniently obtained, comprehensive analysis and research on the testing result cannot be carried out, and the user experience is not high. The invention has simple structure, convenient use and low manufacturing cost, can conveniently and intuitively obtain more accurate data to be tested during test calibration, and has higher user experience.
In order to solve the technical problems, the invention adopts the technical scheme that: an angular velocity sensor testing machine comprises a rack, a control unit, a servo motor, a transmission wheel, a rotating shaft and a measuring turntable, wherein the servo motor is fixed on the rack; the top surface of the measuring turntable is fixedly connected with a sensor to be measured, the driving wheel is provided with an encoder, and the encoder is in communication connection with the control unit. Thus, the general frame is a box body with an opening on one side surface, the motor is fixed on the frame, an output shaft of the motor rotates to drive the transmission wheel to rotate, the transmission wheel is connected to the turntable at the top of the frame of the box body through a rotating shaft, and the rotating shaft is movably arranged on the top surface of the box body in a penetrating way; during testing, the angular velocity sensor to be tested is in data transmission connection with the control unit, the angular velocity sensor to be tested is fixedly placed in a sensor placing groove of the turntable to be tested, the control unit outputs a control signal to the servo motor, the servo motor is controlled to rotate at a certain rotating speed, the servo motor drives the driving wheels to rotate, each driving wheel is coaxially connected with an encoder or is in transmission connection with the encoder (the connection modes are various, the purpose is to measure the angular velocity or linear velocity of the driving wheels, and then the calculation is carried out through the control unit), the encoder is in data transmission connection with the control unit, the encoder can measure the angular velocity corresponding to each driving wheel, the encoder used here is a standard instrument, the precision is very high, and the angular velocity data tested by the encoder can be compared as standard data; the rotating shaft is generally a conical shaft, and the connecting part of the rotating shaft and the measuring turntable has a certain taper, so that the measuring turntable can rotate stably; because the driving wheel and the measuring turntable rotate coaxially, the angular speeds of the driving wheel and the measuring turntable are the same, so that the performance parameters of the angular speed sensor to be measured can be measured by sending the data measured by the angular speed sensor to be measured on the turntable to the control unit and comparing the data sent by the encoder; the invention has simple structure, convenient use and low manufacturing cost, can conveniently and intuitively obtain more accurate data to be tested during test calibration, and has higher user experience.
Furthermore, a sensor placing groove to be measured is arranged on the top surface of the measuring turntable. Therefore, the sensor to be measured is placed in the groove by the single sensor to be measured placing groove, the sensor to be measured cannot be separated from the rotary table during rotation, and the measuring rotary table plays a role in fixing the sensor to be measured.
As a preferable scheme, the transmission wheel includes a first gear and a second gear, the outer diameter of the first gear is larger than the outer diameter of the second gear, the measuring turntable includes a first turntable and a second turntable, the first gear is fixedly connected with the first turntable through the rotating shaft, the second gear is fixedly connected with the second turntable through the rotating shaft, the output shaft of the servo motor is fixedly connected with the inner hole of the first gear, and the first gear is engaged with the second gear. Therefore, the technical scheme adopts a large gear and a small gear to carry out the test, and the measuring range of the angular speed testing machine can be enlarged; be equipped with an encoder on first gear and the second gear respectively, can use first gear to drive the first carousel rotation of low-speed end when setting up angular velocity less, when setting up angular velocity great, because the motion of first gear linkage second gear increases rotation angular velocity, drives high-speed end test disc and rotates with great speed, so the design can satisfy different test condition.
As another preferred scheme, the driving wheel includes a first chain wheel and a second chain wheel, the outer diameter of the first chain wheel is greater than the outer diameter of the second chain wheel, the measuring turntable includes a first turntable and a second turntable, the first chain wheel is fixedly connected with the first turntable through the rotating shaft, the second chain wheel is fixedly connected with the second turntable through the rotating shaft, a third chain wheel is arranged on the output shaft of the motor, and the first chain wheel and the second chain wheel form chain transmission with the third chain wheel through chains. Like this, be equipped with an encoder on first sprocket and the second sprocket respectively, the external diameter of first sprocket is a lot bigger than the external diameter of third sprocket, the external diameter of second sprocket is less than the external diameter of third sprocket, the thickness of third sprocket is great, can connect two chains simultaneously, utilize chain drive, the linear velocity that the transmission came out on same motor output shaft is unanimous for the angular velocity of first sprocket is a lot less than the angular velocity of second sprocket, can satisfy the test under the different angular velocity condition equally.
Further, the control unit comprises a PLC and an upper computer, the upper computer is connected with the PLC, the PLC is connected with the servo motor, and the encoder is connected with the upper computer. Like this, the host computer is used for carrying out data reception processing, management and storage, show, generate the certificate report after accomplishing the test flow, and set up PLC, external PLC can control servo motor's initial rotational speed, servo motor can drive first gear and second gear rotation, first gear drives first carousel and rotates, the second gear drives the second carousel and rotates, during the test, can select first carousel or second carousel to test according to the test condition, the data after encoder and the measured angular velocity transducer test all transmits the host computer and carries out the contrastive processing, and generate the certificate report.
Compared with the prior art, the beneficial effects are:
1. the testing device adopts a mode that the motor drives the gear to rotate to carry out testing, has a simple structure, is very convenient to use, has low manufacturing cost, can conveniently and intuitively obtain more accurate data to be tested during testing and calibration, and has higher user experience.
2. The invention adopts a transmission mode of the big gear and the small gear or the big chain wheel to carry out the test, can increase the measurement range of the angular speed tester, and can meet different test conditions.
Drawings
Fig. 1 is a schematic diagram of the overall framework of the present invention.
Fig. 2 is a schematic structural view of the whole of the present invention.
Detailed Description
The drawings are for illustrative purposes only and are not to be construed as limiting the patent; for the purpose of better illustrating the embodiments, certain features of the drawings may be omitted, enlarged or reduced, and do not represent the size of an actual product; it will be understood by those skilled in the art that certain well-known structures in the drawings and descriptions thereof may be omitted. The positional relationships depicted in the drawings are for illustrative purposes only and are not to be construed as limiting the present patent.
The technical scheme of the invention is further described in detail by the following specific embodiments in combination with the attached drawings:
the embodiment provides an angular velocity sensor testing machine, as shown in fig. 1 and fig. 2, including frame 1, the control unit 2, servo motor 3, first sprocket 4, the second sprocket 5, pivot 9 and survey carousel, servo motor 3 fixes in frame 1, the control unit 2 is connected with servo motor 3, the activity of pivot 9 is worn to establish in frame 1, the top surface of survey carousel is equipped with the sensor standing groove that awaits measuring, all be equipped with the encoder on first sprocket 4 and the second sprocket 5, encoder and 2 communication connection of the control unit.
In the present embodiment, the outer diameter of the first sprocket 4 is larger than the outer diameter of the second sprocket 5; the measuring turntable comprises a first turntable 7 and a second turntable 8, a first chain wheel 4 is fixedly connected with the first turntable 7 through a rotating shaft 9, and a second chain wheel 5 is fixedly connected with the second turntable 8 through the rotating shaft 9; and a third chain wheel is arranged on an output shaft of the motor 3, and the first chain wheel 4 and the second chain wheel 5 form a chain 6 transmission with the third chain wheel through a chain 6. The control unit 2 comprises a PLC and an upper computer, the upper computer is connected with the PLC, the PLC is connected with the servo motor 3, and the encoder is connected with the upper computer.
In this embodiment, the frame 1 is a box body with an opening on one side, the motor 3 is fixed on the frame 1, the output shaft of the motor 3 rotates to drive two chain wheels to rotate, the chain wheels are connected to a turntable on the top of the frame 1 of the box body through a rotating shaft 9, and the rotating shaft 9 is movably arranged on the top surface of the box body in a penetrating manner; during testing, the angular velocity sensor to be tested is connected with the control unit 2 in a data transmission mode, the angular velocity sensor to be tested is fixedly placed in a placing groove of the sensor to be tested of the measuring turntable, the control unit 2 outputs a control signal to the servo motor 3 to control the servo motor 3 to rotate at a certain rotating speed, the servo motor 3 drives the chain wheel to rotate, the first chain wheel 4 and the second chain wheel 5 are both provided with encoders, the encoders are connected with the control unit 2 in a data transmission mode, the encoders can measure the angular velocity corresponding to each chain wheel, the encoders used herein are standard instruments and are high in precision, and the angular velocity data tested by the encoders can be compared as standard data; since the first sprocket 4 and the first turntable 7 rotate coaxially, their angular velocities are the same; the second chain wheel 5 and the second rotating disc 8 rotate coaxially, and the angular speeds of the second chain wheel and the second rotating disc are the same, so that the performance parameters of the angular speed sensor to be tested can be tested by comparing the data measured by the angular speed sensor to be tested on each rotating disc with the data sent by the control unit 2 and the encoder. The host computer is used for carrying out data reception and processing, the management and storage, show, generate the certificate report after accomplishing the test flow, and set up PLC, external PLC can control servo motor 3's initial rotational speed, servo motor 3 can drive first sprocket 4 and second sprocket 5 and rotate, first sprocket 4 drives first carousel 7 and rotates, second sprocket 5 drives second carousel 8 and rotates, during the test, can select first carousel 7 or second carousel 8 to test according to the test condition, the encoder and by the data after the test of angular velocity transducer all transmit the host computer and carry out the contrastive processing, and generate the certificate report.
In the embodiment, a large chain wheel and a small chain wheel are linked for testing, the measuring range of the angular speed testing machine can be enlarged, the first chain wheel 4 and the second chain wheel 5 are respectively provided with an encoder, the outer diameter of the first chain wheel 4 is much larger than that of the third chain wheel, the outer diameter of the second chain wheel 5 is smaller than that of the third chain wheel, the thickness of the third chain wheel is larger, the first chain wheel and the second chain wheel can be simultaneously connected with two chains 6, the chains 6 are utilized for transmission, the linear speeds transmitted from the output shaft of the same motor 3 are consistent, the angular speed of the first chain wheel 4 is much smaller than that of the second chain wheel 5, and the testing under the condition of different angular speeds can be met; the structure of the experimental machine is more convenient and reasonable.
This embodiment simple structure, it is very convenient to use, low in manufacturing cost, when the test calibration, can very conveniently obtain the comparatively accurate data that awaits measuring directly perceivedly, and user experience degree is higher.
Example 2
This example is similar to example 1, except that:
in the embodiment, the first chain wheel and the second chain wheel are respectively replaced by a first gear and a second gear, the output shaft of the servo motor is directly and fixedly connected with the inner hole of the first gear, and the first gear is meshed with the second gear; the first gear is connected with the first rotary disc through rotation, the second gear is connected with the second rotary disc through a rotating shaft, and the outer diameter of the first gear is larger than that of the second gear.
It should be understood that the above-described embodiments of the present invention are merely examples for clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. Any modification, equivalent replacement, and improvement made within the spirit and principle of the present invention should be included in the protection scope of the claims of the present invention.
Claims (5)
1. An angular velocity sensor testing machine is characterized by comprising a rack, a control unit, a servo motor, a transmission wheel, a rotating shaft and a measuring turntable, wherein the servo motor is fixed on the rack;
the top surface of the measuring turntable is fixedly connected with a sensor to be measured, the driving wheel is provided with an encoder, and the encoder is in communication connection with the control unit.
2. The angular velocity sensor testing machine according to claim 1, wherein a sensor placement groove to be tested is provided on a top surface of the measurement turntable.
3. The angular velocity sensor testing and testing machine according to claim 1, wherein the transmission wheel includes a first gear and a second gear, an outer diameter of the first gear is larger than an outer diameter of the second gear, the measuring turntable includes a first turntable and a second turntable, the first gear is fixedly connected to the first turntable through the rotation shaft, the second gear is fixedly connected to the second turntable through the rotation shaft, an output shaft of the servo motor is fixedly connected to an inner hole of the first gear, and the first gear is engaged with the second gear.
4. The angular velocity sensor testing and testing machine according to claim 1, wherein the transmission wheel includes a first sprocket and a second sprocket, an outer diameter of the first sprocket is larger than an outer diameter of the second sprocket, the measuring turntable includes a first turntable and a second turntable, the first sprocket is fixedly connected with the first turntable through the rotating shaft, the second sprocket is fixedly connected with the second turntable through the rotating shaft, a third sprocket is disposed on an output shaft of the motor, and the first sprocket and the second sprocket are both in chain transmission with the third sprocket through chains.
5. The testing and testing machine of angular velocity sensors according to any of claims 1 to 4, characterized in that, the control unit comprises a PLC and an upper computer, the upper computer is connected with the PLC, the PLC is connected with the servo motor, and the encoder is connected with the upper computer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337688.1A CN111060717A (en) | 2019-12-23 | 2019-12-23 | Angular velocity sensor testing machine |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911337688.1A CN111060717A (en) | 2019-12-23 | 2019-12-23 | Angular velocity sensor testing machine |
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| CN111060717A true CN111060717A (en) | 2020-04-24 |
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| CN201911337688.1A Pending CN111060717A (en) | 2019-12-23 | 2019-12-23 | Angular velocity sensor testing machine |
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| CN108519500A (en) * | 2018-04-11 | 2018-09-11 | 航天科技控股集团股份有限公司 | Car speed sensor comparison type detection device |
| CN208537580U (en) * | 2018-06-08 | 2019-02-22 | 上海煤科检测技术有限公司 | A kind of Multifunctional speed generating device |
| 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 |
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2019
- 2019-12-23 CN CN201911337688.1A patent/CN111060717A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101173878A (en) * | 2007-11-27 | 2008-05-07 | 上海西派埃自动化仪表工程有限责任公司 | Static and dynamic acceleration testing device |
| CN102608358A (en) * | 2012-03-09 | 2012-07-25 | 中国农业大学 | System and method for multi-sensor comparative rotation speed test |
| KR20140078938A (en) * | 2012-12-18 | 2014-06-26 | 한국남부발전 주식회사 | Speed characteristic test device of turbine and boiler feedwater pump |
| CN205193095U (en) * | 2015-10-20 | 2016-04-27 | 北京融世杰机械设备有限公司 | Engineering machinery camshaft, bent axle signal generator |
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Application publication date: 20200424 |