CN207541268U - A kind of laser velocimeter device under high speed impact - Google Patents
A kind of laser velocimeter device under high speed impact Download PDFInfo
- Publication number
- CN207541268U CN207541268U CN201721666995.0U CN201721666995U CN207541268U CN 207541268 U CN207541268 U CN 207541268U CN 201721666995 U CN201721666995 U CN 201721666995U CN 207541268 U CN207541268 U CN 207541268U
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- measurement plate
- laser
- pedestal
- high speed
- plate
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Abstract
The utility model discloses the laser velocimeter devices under a kind of high speed impact, including pedestal, shock plate, measurement plate, laser emission element and buffer unit, sliding slot is offered along its length on the pedestal, the measurement plate is slidably arranged in sliding slot, the measurement plate upper edge glide direction offers the rectangular straight slot of several spacing settings, one end in the measurement plate close to impulse source is provided with shock plate, one end far from impulse source is provided with buffer unit on the bottom plate, portal trestle is provided between shock plate and buffer unit, laser emission element is provided on stent, photoelectric conversion unit is provided on pedestal, the photoelectric conversion unit is correspondingly arranged with laser emission element；The signal output end of photoelectric conversion unit and the signal input part of timing unit connect.The utility model provides the laser velocimeter device under a kind of high speed impact, can effectively react the velocity variations after object collision.
Description
Technical field
The utility model laser velocimeter field, the laser velocimeter device under more particularly to a kind of high speed impact.
Background technology
At present, the velocity variations after object impact are measured mostly using laser velocimeter, and the measuring principle of laser velocimeter device is
Laser ranging that is, by emitting laser beam, and receive the back wave of the laser beam to testee, passes through opto-electronic conversion electricity
Road changes into electric signal timing, and records the time difference, to determine the distance of testee and test point.Laser velocimeter device is pair
Testee is had the laser ranging of specified time interval twice, obtain the movement of the testee within a period away from
From so as to obtain the movement speed of the testee.But in impact test, such as the examination of vehicle impact testing, projectile impact
It tests, it is impossible to the velocity variations course of the object after reaction impact.
Invention content
Goal of the invention：In order to overcome the deficiencies in the prior art, the utility model is provided under a kind of high speed impact
Laser velocimeter device can effectively react the velocity variations after object collision.
Technical solution：To achieve the above object, the technical solution of the utility model is as follows：
A kind of laser velocimeter device under high speed impact, eases up including pedestal, shock plate, measurement plate, laser emission element
Flushing device, the pedestal are the rectangular slab of fixed setting, and sliding slot, the measurement plate bottom are offered along its length on the pedestal
Portion is provided with guide rail, and the guide rail is slidably arranged in sliding slot, and the measurement plate upper edge glide direction offers several spacing and sets
The rectangular straight slot put, the rectangular straight slot run through the two side of measurement plate；It is set in the measurement plate close to one end of impulse source
There is a shock plate, one end far from impulse source is provided with buffer unit on the bottom plate, is set between the shock plate and buffer unit
Portal trestle is equipped with, the stent is fixed at the top of bottom plate, and laser emission element, the bottom are provided on the stent
Photoelectric conversion unit is provided on seat, the photoelectric conversion unit is correspondingly arranged with laser emission element；The opto-electronic conversion list
The signal output end of member and the signal input part of timing unit connect.
Further, several rectangular straight slot are opened in measurement plate long side edge, several rectangular straight slot
It is of same size, and the adjacent spacing of several rectangular straight slot is equal.
Further, when being not affected by impact force, the measurement plate is connected to the end of sliding slot close to one end of impulse source,
And the edge of rectangular straight slot of the laser light irradiation of the laser emission element in measurement plate, and laser beam is just tested
Template blocks.
Further, the triggering inductor that timing unit is provided in one end that measurement plate is abutted with sliding slot, it is described
Triggering inductor is arranged on the end of sliding slot.
Further, two of the spacing between the laser emission element and buffer unit at least more than twice are adjacent
The spacing of rectangular straight slot.
Further, open up fluted on the bottom plate, the photoelectric conversion unit is arranged in the groove.
Advantageous effect：In original state, measurement plate contacts the measurement plate of the utility model with triggering inductor, and same
When, the laser light irradiation of laser emission element transmitting is just blocked in the edge of rectangular straight slot, will not be radiated at light
In electric converting unit；After momentum effect, start to slide backward, and pass through and trigger inductor and start to make timing unit timing,
Meanwhile laser beam starts to be radiated on photoelectric conversion unit, laser photoelectricity converting unit converts optical signals into electric signal, and
Data processing is carried out by processing unit；With the slip of measurement plate, when laser beam passes through rectangular straight slot, photoelectric conversion unit
Conversion signal and export change rectangular straight slot by time interval, when laser beam is blocked, then will not output time data, lead to
Cross the length of rectangular straight slot divided by the time interval of the output of this section, you can obtain speed values at this time, pass through multiple speed
Numerical value, can reflected measurement plate velocity variations course.
Description of the drawings
Attached drawing 1 is the overall structure diagram of the utility model；
Attached drawing 2 is the overall structure vertical view of the utility model；
Attached drawing 3 is the laser emission element of the utility model and the partial schematic diagram of photoelectric conversion unit；
Attached drawing 4 is the impulse waveform schematic diagram of the utility model.
Specific embodiment
The utility model is further described below in conjunction with the accompanying drawings.
As shown in Figures 1 and 2, the laser velocimeter device under a kind of high speed impact including pedestal 1, shock plate 2, is surveyed
Template 3, laser emission element 8 and buffer unit 7, the pedestal 1 be fixed setting rectangular slab, the 1 upper edge length of pedestal
Direction offers sliding slot 6, and 3 bottom of measurement plate is provided with guide rail, and the guide rail is slidably arranged in sliding slot 6, the measurement
3 upper edge glide direction of plate offers the rectangular straight slot 9 of several spacing settings, and the rectangular straight slot 9 runs through the both sides of measurement plate 3
Wall；One end of impulse source is provided with shock plate 2 in the measurement plate 3, one end far from impulse source is set in the measurement plate 3
Baffle 5 is equipped with, the baffle 5 with buffer unit for contacting, and one end far from impulse source is provided with buffering dress on the bottom plate 1
7 to be put, portal trestle 4 is provided between the shock plate 2 and buffer unit 7, the stent 4 is fixed at the top of bottom plate 1,
Laser emission element 8 is provided on the stent 4, photoelectric conversion unit 10, the opto-electronic conversion list are provided on the pedestal 1
Member 10 is correspondingly arranged with laser emission element 8；The signal output end of the photoelectric conversion unit 10 and the signal of timing unit 11
Input terminal connects.The signal output end of the timing unit is connect with the signal input part of processing unit 12, is wrapped in processing unit
Include transient waveform logger, can stored record photoelectric conversion unit signal intensity, measurement plate in original state, measurement plate with
Trigger inductor contact, and at the same time, laser emission element transmitting laser light irradiation in the edge of rectangular straight slot, and just
It is blocked well, will not be radiated on photoelectric conversion unit；After momentum effect, start to slide backward, and pass through triggering sensing
Device starts to make timing unit timing, meanwhile, laser beam starts to be radiated on photoelectric conversion unit, and laser photoelectricity converting unit will
Optical signal is converted into electric signal, and passes through processing unit and carry out data processing；With the slip of measurement plate, laser beam passes through square
During shape straight slot, photoelectric conversion unit conversion signal and export change rectangular straight slot by time interval, when laser beam is blocked,
Then will not output time data, pass through the time interval of the output of the length of rectangular straight slot divided by this section, you can obtain at this time
Speed values, by multiple speed values, can reflected measurement plate velocity variations course.
Several rectangular straight slot 9 are opened in the long side edge of measurement plate 3, the width of several rectangular straight slot 9
Spend identical, and the adjacent spacing of several rectangular straight slot 9 is equal.By the variation of identical spacing reaction speed, make measurement
Structure is more intuitive, is easy to observation analysis.
As shown in attached drawing 2 and attached drawing 3, when being not affected by impact force, the measurement plate 3 is connected to close to one end of impulse source
The end of sliding slot 6, and the edge of rectangular straight slot 9 of the laser light irradiation of the laser emission element 8 in measurement plate 3, and
The just tested template 3 of laser beam blocks.It is blocked at this point, laser beam is tested template, has only just received impact in measurement plate
It is just triggered during power, the starting point as signal measurement.
As shown in Figure 2, the triggering sensing for being provided with timing unit 11 with one end that sliding slot 6 abuts in measurement plate 3
Device 14, the triggering inductor 14 are arranged on the end of sliding slot 6.When measurement plate just receives impact force just trigger, as when
Between the starting point that measures.
Two adjacent rectangles of the spacing at least more than twice between the laser emission element 8 and buffer unit 7 lead to
The spacing of slot 9.Due to measurement plate 3 and buffer unit, there are a determining deviations, when measurement plate 3 receives impact force, can first rush
Mobile one end distance under the action of power is hit, and passes through the distance of at least two rectangular straight slot, in the segment distance, punching can be calculated
Starting velocity when source just acts on is hit, after which moves past, measurement plate 3 is contacted with buffer unit, into row buffering, measurement plate 3
Speed rapid drawdown, in buffering, measurement plate continues rearward displacement, gradually passes through the rectangular recess of remainder, and pass through timing list
Member and processing unit processes simultaneously reflect the velocity variations course after impact.
Fluted 13 are opened up on the bottom plate 1, the photoelectric conversion unit 10 is arranged in the groove 13.Convenient for measuring
The slip of plate, while make opto-electronic conversion power supply unaffected.
If attached drawing 4 is the impulse waveform schematic diagram that measures, each pulse corresponds to a time interval, according to groove length and
Time interval can obtain the velocity variations after impact.
The above is only the preferred embodiment of the utility model, it should be pointed out that：For the common skill of the art
For art personnel, under the premise of the utility model principle is not departed from, several improvements and modifications can also be made, these improve and
Retouching also should be regarded as the scope of protection of the utility model.
Claims (6)
1. a kind of laser velocimeter device under high speed impact, it is characterised in that：Including pedestal (1), shock plate (2), measurement plate
(3), laser emission element (8) and buffer unit (7), the pedestal (1) is the rectangular slab of fixed setting, on the pedestal (1)
Sliding slot (6) is offered along its length, and measurement plate (3) bottom is provided with guide rail, and the guide rail is slidably arranged in sliding slot (6)
Interior, measurement plate (3) the upper edge glide direction offers the rectangular straight slot (9) of several spacing settings, and the rectangular straight slot (9) is passed through
The two side of wear measurement plate (3)；One end on the measurement plate (3) close to impulse source is provided with shock plate (2), the pedestal
(1) one end far from impulse source is provided with buffer unit (7) on, and door is provided between the shock plate (2) and buffer unit (7)
Shape stent (4), the stent (4) are fixed at the top of pedestal (1), laser emission element are provided on the stent (4)
(8), photoelectric conversion unit (10), the photoelectric conversion unit (10) and laser emission element (8) are provided on the pedestal (1)
It is correspondingly arranged；The signal output end of the photoelectric conversion unit (10) is connect with the signal input part of timing unit (11).
2. the laser velocimeter device under a kind of high speed impact according to claim 1, it is characterised in that：Several rectangles
Straight slot (9) is opened in the long side edge of measurement plate (3), the rectangular straight slot (9) it is of same size, and several rectangles lead to
The adjacent spacing of slot (9) is equal.
3. the laser velocimeter device under a kind of high speed impact according to claim 1, it is characterised in that：It is being not affected by impact
During power, the measurement plate (3) is connected to the ends of sliding slot (6) close to one end of impulse source, and the laser emission element (8)
The edge of rectangular straight slot (9) of the laser light irradiation in measurement plate (3), and the just tested template (3) of laser beam blocks.
4. the laser velocimeter device under a kind of high speed impact according to claim 3, it is characterised in that：It is described in measurement plate
(3) one end abutted with sliding slot (6) is provided with the triggering inductor (14) of timing unit (11), and the triggering inductor (14) sets
It puts in the end of sliding slot (6).
5. the laser velocimeter device under a kind of high speed impact according to claim 1, it is characterised in that：The Laser emission
The spacing of the adjacent rectangular straight slot (9) of two of spacing at least more than twice between unit (8) and buffer unit (7).
6. the laser velocimeter device under a kind of high speed impact according to claim 1, it is characterised in that：The pedestal (1)
On open up fluted (13), the photoelectric conversion unit (10) is arranged in the groove (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666995.0U CN207541268U (en) | 2017-12-05 | 2017-12-05 | A kind of laser velocimeter device under high speed impact |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721666995.0U CN207541268U (en) | 2017-12-05 | 2017-12-05 | A kind of laser velocimeter device under high speed impact |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207541268U true CN207541268U (en) | 2018-06-26 |
Family
ID=62616899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721666995.0U Expired - Fee Related CN207541268U (en) | 2017-12-05 | 2017-12-05 | A kind of laser velocimeter device under high speed impact |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207541268U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304550A (en) * | 2018-09-28 | 2019-02-05 | 郑州康德钛制品科技有限公司 | A kind of new pattern laser mark tooling |
| CN114870920A (en) * | 2022-05-13 | 2022-08-09 | 成都开图医疗系统科技有限公司 | TIP head loading device and loading method for pipettor |
-
2017
- 2017-12-05 CN CN201721666995.0U patent/CN207541268U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109304550A (en) * | 2018-09-28 | 2019-02-05 | 郑州康德钛制品科技有限公司 | A kind of new pattern laser mark tooling |
| CN109304550B (en) * | 2018-09-28 | 2023-06-02 | 郑州康德泰口腔医疗科技有限公司 | Novel laser marking tool |
| CN114870920A (en) * | 2022-05-13 | 2022-08-09 | 成都开图医疗系统科技有限公司 | TIP head loading device and loading method for pipettor |
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180626 Termination date: 20201205 |