CN207516391U - A kind of multi-functional speed measuring device - Google Patents
A kind of multi-functional speed measuring device Download PDFInfo
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- CN207516391U CN207516391U CN201721584509.0U CN201721584509U CN207516391U CN 207516391 U CN207516391 U CN 207516391U CN 201721584509 U CN201721584509 U CN 201721584509U CN 207516391 U CN207516391 U CN 207516391U
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Abstract
The utility model is related to speed measuring device fields, 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 this system uses portable design, and easy disassembly is suitble to test site to use operation.
Description
Technical field
The utility model is related to speed measuring device field, more particularly, to a kind of multi-functional speed measuring device.
Background technology
In daily calibration, because of the limitation of standard, we use general measurer, stopwatch, inclinator, revolution counter into
During row manual measurement, the uncertainty factor caused by artificial is affected, so as to generate 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 has 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.
Utility model content
The utility model is at least one defect overcome described in the above-mentioned prior art, provides a kind of multi-functional dress that tests the speed
It puts, realizes and spacing, chord length, arc length, angle, angular speed, linear velocity, rotating speed, time index are measured, this system is using just
Design is taken, easy disassembly is suitble to test site to use operation.
In order to solve the above technical problems, the technical solution adopted in the utility model 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 mould
Block includes first laser sensor, second laser sensor, grating scale, computer, the first laser sensor and second
Sensor is installed on grating scale, and the computer is electrically connected with first laser sensor and second laser sensor, institute
That states tests the speed turntable 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, are measuring angle
During speed, the center of circle for the turntable that tests the speed is mounted 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, it tests the speed and is divided into the hollow disc of several 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 requirement can have both been reached using microcontroller, it is whole can also to mitigate equipment
Body size and weight, are convenient for carrying, and reduce cost.
Further, the utility model further includes adjustable support, and detection module is mounted on adjustable support.
Further, adjustable support is tripod, and tripod has rock-steady structure, and detachable, 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, advantageous effect is：
1st, the measurement of many kinds of parameters can be realized, it is easy to use；
2nd, using high-precision Laser Doppler Velocimeter, test result is accurate；
3rd, equipment is light adjustable, facilitates several scenes application.
Description of the drawings
Fig. 1 is the utility model overall structure front view；
Fig. 2 is the utility model laser sensor setting interface schematic diagram；
Fig. 3-10 is control module Operation interface diagram in the utility model.
Specific embodiment
The attached figures are only used for illustrative purposes and cannot be understood as limitating the patent；It is attached in order to more preferably illustrate the present embodiment
Scheme certain components to have omission, zoom in or out, do not represent the size of actual product；To those skilled in the art,
The omitting of some known structures and their instructions in the attached drawings are understandable.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 mounted on tripod 4, and control module 2 is electrically connected control detection module 1 with detection module 1, wherein, it is 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 on grating scale with second laser sensor 102, first laser sensor 101 and second laser sensor 102 can
It is slided on grating scale, first laser sensor 101 and second laser sensor 102 and monolithic mechatronics, by institute's measured data
It is further calculated in output to microcontroller, obtains 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 point by triggering
Timing, by stopping timing during another laser point, controller passes through formula：V=s/t calculates measured object space rate.V is represented
Movement speed, behalf shift motion, t were represented through the shift motion required time.
Angular speed：Center location is confirmed in the tested equipment with rotating function, by installing, fixing known angle additional
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 of rotation, 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 obtains linear velocity.
The expression formula of linear velocity is v=l/t, in formula：V represents linear velocity, and l represents the arc length of rotation, and t is represented by passing through 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 label 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 label 1 minute.
Further included the turntable 3 that tests the speed, test turntable is the hollow disc that one point is several equal portions, measure angular speed when
It waits, 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 on 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 tuning, pattern, preset functions, channel switch, specific setting up procedure are as follows：
1st, pattern is set：
As shown in Fig. 2, pinning " pattern " button 3s, after there is present mode, changed by pressing " sensitivity fine tuning " button
Change pattern, by mode setting in HSP patterns.When 2 points of distances of AB are less than 50mm to displacement measurement simultaneously, second laser head is put
Big device 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 feelings
Condition is necessarily placed at HSP patterns.
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, adjust laser head
To the distance of measured object, to ensure its reflective value>=500.
3rd, sensitivity threshold value setting：
（1）" channel switch " is beaten Sensitirity va1ue F1 when to 1 channel, recording no measured point, is pressed by " sensitivity fine tuning "
Sensitivity threshold values is set as bigger than F1 by 20 by key.
（2）" channel switch " is beaten to 2 channels, by " sensitivity fine tuning " button, sensitivity threshold values is set as leading 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, laser head B is returned to original position, then click " clearing ", then is mobile sharp
Bare headed B is to desired size positions.
（2）As shown in figure 5, click " space rate measurements ", select the measured object direction of motion, selection " single triggering " or
" continuous trigger " after setting, is clicked " beginning ", is determined, you can measure.
（3）Mm/s, m/s, km/h, m/min can be switched over to speed unit by clicking " switching ".
Annotation：
Single triggers：It can just be measured after must click on " beginning ", " determining " before measuring every time.
Continuous trigger：After entering the function, click primary " beginning ", " determining ", behind can continue repeatedly to survey
Amount, until exiting the functional measurement.
2nd, tachometric survey：
As shown in fig. 6, clicking " tachometric survey ", the laser head measured is selected, " beginning " is clicked, determines, you can surveyed
Amount.
3rd, angle rates measure：
（1）As shown in Figure 7,8, the turntable that tests the speed of angle known to installation is by school centre point, and " angle rates survey for click
Amount ", selection select " single triggering " or " continuous trigger " for the laser head of measurement.
（2）Corresponding input frame is clicked, pop-up input keyboard inputs angle angle, radius r1, radius r2 known to disk,
Finally click " preservation ".
（3）Click " beginning ", " determining ", you can measure.
Annotation：
Single triggers：It can just be measured after must click on " beginning ", " determining " before measuring every time.
Continuous trigger：After entering the function, click primary " beginning ", " determining ", behind can continue repeatedly to survey
Amount, until exiting the functional measurement.
4th, laser head is tested：
As shown in figure 9, clicking " laser head test ", measured object is moved through laser head, corresponding laser head identification time
Number can increase automatically, then prove that tested laser head is working properly at this time.If cannot identify, by " laser head and amplifier
Setting " is 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 is expressed as
Work(.
（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, clicks input frame, pop-up input keyboard, the 2nd step of input calculates
Offset out is clicked and determines, preserves.
（5）Oscillograph is connected on BNC terminals（Waveform exports）, oscillograph, which is set as low level, to be triggered, and utilizes " space rate
Measure " function, measure 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 period of oscillograph is arranged on 400us, and this set time can essence
Really to us, displacement time is bigger, and the setting of oscillograph period must be bigger, and measurement accuracy is poorer.
Obviously, above-described embodiment of the utility model is only intended to clearly illustrate the utility model example, and
It is not the restriction to the embodiment of the utility model.For those of ordinary skill in the art, in above description
On the basis of can also make other variations or changes in different ways.There is no need and unable to give all embodiments
It is exhaustive.All any modification, equivalent and improvement made within the spirit and principles of the present invention etc., should be included in
Within the protection domain of the utility model claims.
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）Electrical connection, which is characterized in that further include the turntable that tests the speed（3）, the detection module（1）It is 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）Electrical connection, the turntable that tests the speed（3）On measured object.
A kind of 2. multi-functional speed measuring device according to claim 1, which is characterized in that the turntable that tests the speed（3）For in
The heart is divided into the hollow disc of several equal portions.
A kind of 3. multi-functional speed measuring device according to claim 1, which is characterized 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, which is characterized in that the computer is microcontroller.
5. a kind of multi-functional speed measuring device according to claim 1, which is characterized 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, which is characterized in that the adjustable support is tripod
（4）.
A kind of 7. multi-functional speed measuring device according to claim 6, which is characterized in that the tripod（4）It is equipped with
Handle.
A kind of 8. multi-functional speed measuring device according to claim 1, which is characterized 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
It is projected by slot.
9. according to a kind of multi-functional speed measuring device of claim 1-8 any one of them, which is characterized in that the control module
（2）For touch screen terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721584509.0U CN207516391U (en) | 2017-11-23 | 2017-11-23 | A kind of multi-functional speed measuring device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721584509.0U CN207516391U (en) | 2017-11-23 | 2017-11-23 | A kind of multi-functional speed measuring device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207516391U true CN207516391U (en) | 2018-06-19 |
Family
ID=62540204
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| Application Number | Title | Priority Date | Filing Date |
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| CN201721584509.0U Active CN207516391U (en) | 2017-11-23 | 2017-11-23 | A kind of multi-functional speed measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957503A (en) * | 2017-11-23 | 2018-04-24 | 广电计量检测（西安）有限公司 | A kind of multi-functional speed measuring device |
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2017
- 2017-11-23 CN CN201721584509.0U patent/CN207516391U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107957503A (en) * | 2017-11-23 | 2018-04-24 | 广电计量检测（西安）有限公司 | A kind of multi-functional speed measuring device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 710003 Room C, Floor 1, Jingshang Production Building, No. 21, Bachelor Road, New Industrial Park, Xi'an Hi-tech Zone, Shaanxi Province Patentee after: GRG METROLOGY & TEST (XI'AN) CO.,LTD. Patentee 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 Patentee before: GRG METROLOGY & TEST (XI'AN) CO.,LTD. Patentee before: GUANGZHOU GRG METROLOGY & TEST Co.,Ltd. |
|
| CP01 | Change in the name or title of a patent holder |