CN107957503A - A kind of multi-functional speed measuring device - Google Patents
A kind of multi-functional speed measuring device Download PDFInfo
- Publication number
- CN107957503A CN107957503A CN201711185525.7A CN201711185525A CN107957503A CN 107957503 A CN107957503 A CN 107957503A CN 201711185525 A CN201711185525 A CN 201711185525A CN 107957503 A CN107957503 A CN 107957503A
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- laser sensor
- measuring device
- speed
- laser
- speed measuring
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- 238000012360 testing method Methods 0.000 claims abstract description 29
- 238000001514 detection method Methods 0.000 claims abstract description 18
- 238000005259 measurement Methods 0.000 description 16
- 230000035945 sensitivity Effects 0.000 description 8
- 238000006073 displacement reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000013078 crystal Substances 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/64—Devices characterised by the determination of the time taken to traverse a fixed distance
- G01P3/68—Devices characterised by the determination of the time taken to traverse a fixed distance using optical means, i.e. using infrared, visible, or ultraviolet light
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The present invention relates to speed measuring device field, more specifically, it is related to a kind of multi-functional speed measuring device, including detection module, control module, the detection module is electrically connected with control module, further include the turntable that tests the speed, the detection module includes first laser sensor, second laser sensor, grating scale, computer, the first laser sensor and second sensor are installed on grating scale, the computer is electrically connected with first laser sensor and second laser sensor, and described tests the speed turntable on measured object.Realization measures spacing, chord length, arc length, angle, angular speed, linear velocity, rotating speed, time index, and the system uses portable design, and easy disassembly, is adapted to test site to use operation.
Description
Technical field
The present invention relates to speed measuring device field, more particularly, to a kind of multi-functional speed measuring device.
Background technology
In daily calibration because the limitation of standard, we using general measurer, stopwatch, inclinator, revolution counter into
During row manual measurement, the uncertainty factor caused by artificial has a great influence, so as to produce large effect to measurement result.But
With metering market development, now many clients have measurement accuracy to space rate, linear velocity, angular speed, tachometric survey
It is required that.Traditional measuring apparatus has been unable to meet the demand of present situation, and laser velocimeter sensor is widely used.So I am certainly
Row have developed the multi-functional speed measuring device of the set.Using the laser sensor of Doppler effect speed-measuring method, when triggering crystal oscillator measures
Between, and matched modification height, the calibrating installation of horizontal direction and vertical angle measure short distance average speed, angular speed and line
Speed, the project for having measuring speed demand both at home and abroad at present include space rate（Charpy impact, photoelectric door are closed the door, inclined-plane impact
Machine, product testing etc.）, line/angular speed（Product testing）, rotating speed（Dynamometer machine, product testing）Deng.
The content of the invention
The present invention is at least one defect overcome described in the above-mentioned prior art, there is provided a kind of multi-functional speed measuring device, it is real
Now spacing, chord length, arc length, angle, angular speed, linear velocity, rotating speed, time index are measured, the system is set using portable
Meter, easy disassembly, is adapted to test site to use operation.
In order to solve the above technical problems, the technical solution adopted by the present invention is：A kind of multi-functional speed measuring device, including detection
Module, control module, the detection module are electrically connected with control module, further include the turntable that tests the speed, the detection module bag
Include first laser sensor, second laser sensor, grating scale, computer, the first laser sensor and the second sensing
Device is installed on grating scale, and the computer is electrically connected with first laser sensor and second laser sensor, described
The turntable that tests the speed is installed on measured object.
By setting the distance of first laser sensor and second laser sensor on grating scale, sense first laser
The laser of device and second laser sensor is got on measured object, is measured measured object and is passed by first laser sensor and second laser
The time of sensor laser spot, test result are transmitted to the space rate or rotating speed that measured object is calculated in computer, at measurement angle
During speed, the center of circle for the turntable that tests the speed is installed on to turn for turning in the heart, to test out the turntable that tests the speed by laser sensor of measured object
Speed, surveyed rotating speed is transmitted in computer and typing is tested the speed the radius and angle of turntable in a computer, is calculated by computer
Go out the angular speed of measured object.By calculator can also realize to spacing, chord length, arc length, angle, angular speed, linear velocity, rotating speed,
Time index measures.
Further, test the speed and be divided into the hollow disc of some equal portions centered on turntable, can be tested by laser sensor
Go out every equal portions interlude, so as to calculate angular velocity.
Further, first laser sensor and second laser sensor are Laser Doppler Velocimeter, and how general laser is
It is high to strangle tachymeter measuring accuracy, test result is accurate.
Further, computer is microcontroller, and calculating can have both been reached using microcontroller and has been required, it is whole can also to mitigate equipment
Body size and weight, are convenient for carrying, and reduce cost.
Further, present invention additionally comprises adjustable support, detection module to be installed on adjustable support.
Further, adjustable support is tripod, and tripod has rock-steady structure, and detachably, being capable of multi-angle rotary
With adjusting height, different application scene can adapted to.
Further, tripod is equipped with handle, and the position of this speed measuring device is can conveniently adjust by handle.
Further, detection module further includes shell, and side wall of outer shell is equipped with slot, and grating scale and laser sensor are located at outer
In shell, the laser of laser sensor is projected by slot, and protective shell can protect internal mechanism, prevents collision or dust entrance from leading
Cause service life reduction.
Further, control module is touch screen terminal, and staff can operate device by touch screen terminal, institute
Data are measured to show by touch screen terminal.
Compared with prior art, beneficial effect is：
1st, the measurement of many kinds of parameters can be realized, it is easy to use；
2nd, it is accurate using high-precision Laser Doppler Velocimeter, test result；
3rd, equipment is light adjustable, facilitates several scenes application.
Brief description of the drawings
Fig. 1 is overall structure front view of the present invention；
Fig. 2 is that laser sensor of the present invention sets interface schematic diagram；
Fig. 3-10 is control module Operation interface diagram in the present invention.
Embodiment
Attached drawing is only for illustration, it is impossible to is interpreted as the limitation to this patent；It is attached in order to more preferably illustrate the present embodiment
Scheme some components to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
Some known features and its explanation may be omitted and will be understood by attached drawing.Being given for example only property of position relationship described in attached drawing
Explanation, it is impossible to be interpreted as the limitation to this patent.
As shown in Figure 1, a kind of multi-functional speed measuring device, including detection module 1, control module 2, tripod 4, detection module
1 is installed on tripod 4, and control module 2 is electrically connected control detection module 1 with detection module 1, wherein, wrapped in detection module 1
Shell, microcontroller, first laser sensor 101, second laser sensor 102, grating scale, first laser sensor 101 are included
It is installed in second laser sensor 102 on grating scale, first laser sensor 101 and second laser sensor 102 can
Slided on grating scale, first laser sensor 101 and second laser sensor 102 and monolithic mechatronics, by surveyed data
Output is further calculated into microcontroller, draws spacing, chord length, arc length, angle, angular speed, linear velocity, rotating speed, time
Index.
Space rate：Distance of two laser head of A, B on grating scale is adjusted, when object during a wherein laser spots by triggering
Timing, by stopping timing during another laser spots, controller passes through formula：V=s/t calculates measured object space rate.V is represented
Translational speed, behalf shift motion, t, which is represented, passes through the shift motion required time.
Angular speed：Confirm center location in the tested equipment with rotating function, by installing additional, it is fixed known to angle
Test the speed turntable, and the angular speed that two short axles are fixed by turntable is tested out using speed measuring device single-point laser.The expression formula of angular speed
For ω=y/t, in formula：ω represents angular speed, and y represents the angle rotated, and t is represented by rotating the angle required time.
Linear velocity measures：The radius of circle that user's actual use is multiplied by by the above-mentioned angular speed measured draws linear velocity.
The expression formula of linear velocity is v=l/t, in formula：V represents linear velocity, and l represents the arc length rotated, and t is represented by by this arc length institute
The time needed.V=r ω, r represent tested equipment actual use radius, and ω represents angular speed.
Velocity of rotation measures:Apply simple aberration mark in the tested equipment with rotating function, utilize the dress that tests the speed
Single-point laser is put to measure by the velocity of rotation in aberration mark 1 minute.
Further included the turntable 3 that tests the speed, test turntable is the hollow disc that one point is some equal portions, measure angular speed when
Wait, the turntable 3 that tests the speed is centrally mounted at turning in the heart for measured object, the laser of laser sensor, which is beaten, to test the speed on turntable 3, measures
Corresponding data, then be transmitted back in microcontroller, by radius, angle to microcontroller that the turntable 3 that tests the speed is inputted in control module 2
In, the angular speed of measured object is calculated by microcontroller.
Wherein, control module 2 is touch screen terminal, and staff can operate device by touch screen terminal, be surveyed
Go out data to show by touch screen terminal.
In the present embodiment, handle is equipped with tripod 4, the angle of the present apparatus is can conveniently adjust by handle, it is real
The adjusting of existing multi-angle, is adapted to the application of different scenes.
In the present embodiment, in the present apparatus laser sensor setting as shown in the figure, including sensitivity setting, display,
Sensitivity fine setting, pattern, preset functions, channel switch, specific setting up procedure are as follows：
1st, pattern is set：
As shown in Fig. 2, " pattern " button 3s is pinned, after there is present mode, by changing mould by " sensitivity fine setting " button
Formula, by mode setting in HSP patterns.When 2 points of distances of AB are less than 50mm to displacement measurement at the same time, second laser head amplifier
It is necessarily placed at FINE patterns（Such as from A->During B, B is arranged on FINE.From B->During A, A is arranged on FINE）, other situations must
HSP patterns must be arranged on.
2nd, laser head is set to measured object distance：
By laser alignment measured object test point, reflective value is read, it is necessary to>=500, during if less than 500, adjustment laser head to quilt
The distance of thing is surveyed, to ensure its reflective value>=500.
3rd, sensitivity threshold value setting：
（1）" channel switch " is beaten Sensitirity va1ue F1 when to 1 passage, recording no measured point, by " sensitivity fine setting " button,
Sensitivity threshold values is set to bigger than F1 by 20.
（2）" channel switch " is beaten to 2 passages, by " sensitivity fine setting " button, sensitivity threshold values is set to lead to than first
Road is big by 100.
In the present embodiment, the operation interface in control module is as shown in the figure, concrete operation step is as follows：
1st, space rate measures：
（1）As shown in Figure 3,4, " distance measurement " is clicked on, laser head B is returned to original position, then click on " clearing ", then move laser head
B is to desired size positions.
（2）As shown in figure 5, click on " space rate measurement ", select the measured object direction of motion, selection " single triggering " or
" continuous trigger ", after setting, clicks on " beginning ", determines, you can measure.
（3）Mm/s, m/s, km/h, m/min can be switched over to speed unit by clicking on " switching ".
Annotation：
Single triggers：It can just be measured after must click on " beginning ", " definite " before measurement every time.
Continuous trigger：After entering the function, click on once " beginning ", " definite ", behind can continue repeatedly to survey
Amount, until exiting the functional measurement.
2nd, tachometric survey：
As shown in fig. 6, clicking on " tachometric survey ", the laser head of measurement is selected, " beginning " is clicked on, determines, you can measure.
3rd, angle rates measure：
（1）As shown in Figure 7,8, the turntable that tests the speed of angle known to installation is clicked on " angle rates' measurement " by school centre point,
Selection selects " single triggering " or " continuous trigger " for the laser head measured.
（2）Corresponding input frame is clicked on, pop-up input keyboard, inputs angle angle, radius r1, radius r2 known to disk,
Finally click on " preservation ".
（3）Click on " beginning ", " definite ", you can measure.
Annotation：
Single triggers：It can just be measured after must click on " beginning ", " definite " before measurement every time.
Continuous trigger：After entering the function, click on once " beginning ", " definite ", behind can continue repeatedly to survey
Amount, until exiting the functional measurement.
4th, laser head is tested：
As shown in figure 9, clicking on " laser head test ", measured object is moved through laser head, corresponding laser head identifies number meeting
Automatic increase, then proves that tested laser head is working properly at this time.If cannot identify, by " laser head and amplifier are set "
Tested again after being configured to amplifier.
5th, equipment Alignment：
（1）" calibrating procedure " TF card is inserted into, cycle power, after waiting several seconds for, the screen lower right corner V8.88 occurs and represents successfully.
（2）BNC terminals are measured with frequency meter（Rate-adaptive pacemaker）Spot frequency output, standard 50KHz（20us）, read
Actual measured value t, offset=（t-20us）/2.
（3）" device program " TF card is inserted into, cycle power, after waiting several seconds for, the screen lower right corner V1.0* occurs and is expressed as
Work(.
（4）As shown in Figure 10, " calibration " of screen is clicked on, clicks on input frame, pop-up input keyboard, the 2nd step of input calculates
Offset out, clicks on and determines, preserves.
（5）Oscillograph is connected on BNC terminals（Waveform exports）, oscillograph be set as low level trigger, utilize " space rate
Measurement " function, measures the time that B is displaced to from laser head A, if it is that low level time is consistent to occur with oscillograph, if unanimously
Expression is demarcated successfully, is otherwise re-scaled or is sent and repaiies.
Remarks：
It is recommended that displacement time control, within 2ms, the cycle of oscillograph is arranged on 400us, and this set time can be as accurate as
Us, displacement time is bigger, and the setting of oscillograph cycle must be bigger, and measurement accuracy is poorer.
Obviously, the above embodiment of the present invention is only intended to clearly illustrate example of the present invention, and is not pair
The restriction of embodiments of the present invention.For those of ordinary skill in the field, may be used also on the basis of the above description
To make other variations or changes in different ways.There is no necessity and possibility to exhaust all the enbodiments.It is all this
All any modification, equivalent and improvement made within the spirit and principle of invention etc., should be included in the claims in the present invention
Protection domain within.
Claims (9)
1. a kind of multi-functional speed measuring device, including detection module（1）, control module（2）, the detection module（1）With control
Module（2）It is electrically connected, it is characterised in that further include the turntable that tests the speed（3）, the detection module（1）Sensed including first laser
Device（101）, second laser sensor（102）, grating scale, computer, the first laser sensor（101）And second laser
Sensor（102）It is installed on grating scale, the computer and first laser sensor（101）With second laser sensor
（102）It is electrically connected, the turntable that tests the speed（3）On measured object.
A kind of 2. multi-functional speed measuring device according to claim 1, it is characterised in that the turntable that tests the speed（3）For in
The heart is divided into the hollow disc of some equal portions.
A kind of 3. multi-functional speed measuring device according to claim 1, it is characterised in that the first laser sensor
（101）With second laser sensor（102）It is Laser Doppler Velocimeter.
4. a kind of multi-functional speed measuring device according to claim 1, it is characterised in that the computer is microcontroller.
A kind of 5. multi-functional speed measuring device according to claim 1, it is characterised in that adjustable support is further included, it is described
Detection module（1）On adjustable support.
6. a kind of multi-functional speed measuring device according to claim 5, it is characterised in that the adjustable support is tripod
（4）.
A kind of 7. multi-functional speed measuring device according to claim 6, it is characterised in that the tripod（4）It is equipped with
Handle.
A kind of 8. 1 multi-functional speed measuring device according to claim, it is characterised in that the detection module（1）Also wrap
Shell is included, the side wall of outer shell is equipped with slot, and the grating scale and laser sensor are set inside the shell, the laser of laser sensor
Projected by slot.
A kind of 9. multi-functional speed measuring device of 1-8 any one of them according to claim, it is characterised in that the control
Module（2）For touch screen terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201711185525.7A CN107957503A (en) | 2017-11-23 | 2017-11-23 | A kind of multi-functional speed measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201711185525.7A CN107957503A (en) | 2017-11-23 | 2017-11-23 | A kind of multi-functional speed measuring device |
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| Publication Number | Publication Date |
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| CN107957503A true CN107957503A (en) | 2018-04-24 |
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| CN201711185525.7A Pending CN107957503A (en) | 2017-11-23 | 2017-11-23 | A kind of multi-functional speed measuring device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110133319A (en) * | 2019-05-10 | 2019-08-16 | 国网上海市电力公司 | High speed grounding switch spindle angular velocity detection device in a kind of GIS device |
| CN110596416A (en) * | 2019-10-27 | 2019-12-20 | 江西中船航海仪器有限公司 | Linear speed detection and calibration device |
| CN114545022A (en) * | 2022-01-28 | 2022-05-27 | 中国科学院电工研究所 | High-speed linear motor positioning and speed measuring real-time simulation method and system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110596416A (en) * | 2019-10-27 | 2019-12-20 | 江西中船航海仪器有限公司 | Linear speed detection and calibration device |
| CN114545022A (en) * | 2022-01-28 | 2022-05-27 | 中国科学院电工研究所 | High-speed linear motor positioning and speed measuring real-time simulation method and system |
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| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 710003 Room C, Floor 1, Jingshang Production Building, No. 21, Bachelor Road, New Industrial Park, Xi'an Hi-tech Zone, Shaanxi Province Applicant after: GRG METROLOGY & TEST (XI'AN) CO.,LTD. Applicant after: Radio and TV Measurement and Testing Group Co.,Ltd. Address before: 710003 Room C, Floor 1, Jingshang Production Building, No. 21, Bachelor Road, New Industrial Park, Xi'an Hi-tech Zone, Shaanxi Province Applicant before: GRG METROLOGY & TEST (XI'AN) CO.,LTD. Applicant before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. |