CN109212251A - A kind of laser bullet speed measuring instrument and its speed-measuring method - Google Patents
A kind of laser bullet speed measuring instrument and its speed-measuring method Download PDFInfo
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- CN109212251A CN109212251A CN201810959611.7A CN201810959611A CN109212251A CN 109212251 A CN109212251 A CN 109212251A CN 201810959611 A CN201810959611 A CN 201810959611A CN 109212251 A CN109212251 A CN 109212251A
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- laser
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- bullet
- transmitting
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- 238000000034 method Methods 0.000 title claims abstract description 10
- 230000003287 optical effect Effects 0.000 claims description 4
- 239000004973 liquid crystal related substance Substances 0.000 claims description 3
- 230000001105 regulatory effect Effects 0.000 claims description 2
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 3
- 238000005259 measurement Methods 0.000 description 2
- 239000004065 semiconductor Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 238000005194 fractionation Methods 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 238000000691 measurement method Methods 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000010998 test method Methods 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
- G01P3/36—Devices characterised by the use of optical means, e.g. using infrared, visible, or ultraviolet light
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- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- Power Engineering (AREA)
- General Physics & Mathematics (AREA)
- Optical Radar Systems And Details Thereof (AREA)
Abstract
The invention discloses a kind of laser bullet speed measuring instrument and its speed-measuring methods, including the first power module 1, first laser emits receiving unit, second laser emits receiving unit, host module 10 and second power supply module 14, it includes first laser transmitting module 2 and first laser receiving module 4 that first laser, which emits receiving unit, it includes second laser transmitting module 3 and second laser receiving module 5 that second laser, which emits receiving unit, first laser transmitting module 2 includes multiple laser emitters 6 arranged side by side, first laser receiving module 4 includes multiple laser pickoffs 8 arranged side by side, first laser transmitting module 2 and first laser receiving module 4 are oppositely arranged and spaced apart, laser emitter 6 is identical with the quantity of laser pickoff 8 and each laser emitter 6 and the correspondence of laser pickoff 8 of cooperation are set It sets, operation of the present invention convenience, service life length, stability number, precision are high, and can satisfy the demand of field trial.
Description
Technical field
The present invention relates to speed measurement techniques field more particularly to a kind of laser bullet speed measuring instruments and its speed-measuring method.
Background technique
Currently, using insulating materials between the double-deck tinfoil using the speed in the double-deck tinfoil method measurement bullet flight course
It is isolated, the double-deck tinfoil contacts to form electric signal after projectile impact, measures the time difference of certain distance, obtains bullet flying speed.
This test method, complicated for operation, precision is lower, and performance is unstable, can not reuse, it is easy to not detect data or survey
It is larger to data error.
Summary of the invention
Shortcoming present in technology the purpose of the present invention is to the prior art and propose a kind of structure letter
Laser bullet speed measuring instrument and its speed-measuring method single, easy to operate, that measure accurate recycling.
The technical solution for realizing the aim of the invention is as follows: a kind of laser bullet speed measuring instrument, the measuring instrument include: first
Power module, first laser transmitting receiving unit, second laser transmitting receiving unit, host module and second power supply module, the
One Laser emission receiving unit includes first laser transmitting module and first laser receiving module, and second laser emits receiving unit
Including second laser transmitting module and second laser receiving module, the first laser transmitting module includes multiple arranged side by side
Laser emitter, the first laser receiving module include multiple laser pickoffs arranged side by side, the first laser transmitting
Module and first laser receiving module are oppositely arranged and spaced apart, the quantity of the laser emitter and laser pickoff
Identical and each laser emitter and the laser pickoff of cooperation are correspondingly arranged, first laser transmitting receiving unit and the
The structure that dual-laser emits receiving unit is identical and distance s between the two, first power module and first laser emit mould
Block is connected with second laser transmitting module, and the first laser receiving module and second laser receiving module and host module connect
It connects, the second power supply module is connect with host module.
Further, the first laser transmitting module, first laser receiving module, second laser transmitting module and second
Laser pick-off module respectively includes laser spacing adjusting device, can be adjusted by the laser spacing adjusting device multiple sharp
The spacing between spacing or multiple laser pickoffs between optical transmitting set.
Further, the laser spacing adjusting device includes that part accommodates multiple laser emitters or laser pickoff
Sliding slot and the bolt and nut fixed structure for being horizontally through laser emitter or laser pickoff and sliding slot setting, it is each to swash
Optical transmitting set or laser pickoff correspond to a bolt and nut fixed structure.
Further, the host module includes display module, input module and processing module.
Further, the laser emitter uses semiconductor laser, and the laser pickoff uses phototriode.
Further, the processing module is single-chip microcontroller, and input module is digital analog converter, and display module is liquid crystal display
Device.
Further, the laser bullet speed measuring instrument further includes the target that second laser transmitting receiving unit side is arranged in
Plate.
A kind of speed-measuring method according to laser bullet speed measuring instrument described above, comprising the following steps:
Step 1: bullet is injected from first laser transmitting receiving unit side, the bullet swashs across described first
The laser quilt cartridge stop that any laser emitter when light emitting receiving unit in first laser transmitting receiving unit issues is lived, the
One laser pick-off module transmits a signal to host module, and processing module starts timing；
Step 2: the bullet continues second laser transmitting when flight emits receiving unit across the second laser and receives
The laser quilt cartridge stop that any laser emitter in unit issues is lived, and second laser transmitting module transmits a signal to host mould
Block, processing module timing terminate, time difference t；
Step 3: by input module by the first laser emit receiving unit and second laser emit receiving unit it
Between distance s input processing module, processing module calculate bullet velocity v simultaneously shown by display module, the bullet velocity v
Calculation formula is v=s/t.
Compared with prior art, the present invention advantage are as follows:
(1) easy to operate, service life is long, stability number, precision are high, and can satisfy the demand of field trial；
(2) by the spacing between the adjustable adjacent laser beams of laser spacing adjusting device, to guarantee that the spacing is small
In the outer diameter of test bullet, so that applicable different size of bullet of the invention tests the speed.
Other than objects, features and advantages described above, there are also other objects, features and advantages by the present invention.
Below with reference to accompanying drawings, the present invention is described in further detail.
Detailed description of the invention
Fig. 1 is the floor plan of laser bullet speed measuring instrument of the present invention.
Fig. 2 is the arrangement and connection figure that first laser of the present invention emits receiving unit.
Fig. 3 is that first laser of the present invention emits receiving unit structure fractionation schematic diagram.
Specific embodiment
With reference to the accompanying drawings of the specification, the present invention is further illustrated.
Referring to Fig. 1-3, a kind of laser bullet speed measuring instrument, the measuring instrument includes: the first power module 1, first laser hair
It penetrates receiving unit, second laser transmitting receiving unit, host module 10 and second power supply module 14, first laser transmitting and receives single
Member includes first laser transmitting module 2 and first laser receiving module 4, and second laser transmitting receiving unit includes second laser hair
Module 3 and second laser receiving module 5 are penetrated, the first laser transmitting module 2 includes multiple laser emitters arranged side by side
6, the first laser receiving module 4 includes multiple laser pickoffs 8 arranged side by side, 2 He of first laser transmitting module
First laser receiving module 4 is oppositely arranged and spaced apart, the quantity phase of the laser emitter 6 and laser pickoff 8
With and each laser emitter 6 and the laser pickoff 8 of cooperation be correspondingly arranged, the first laser transmitting receiving unit and the
The structure that dual-laser emits receiving unit is identical and distance s between the two, first power module 1 emit mould with first laser
Block 2 and the connection of second laser transmitting module 3, the first laser receiving module 4 and second laser receiving module 5 and host module
10 connections, the second power supply module 14 are connect with host module 10.
Further, the first laser transmitting module 2, first laser receiving module 4,3 and of second laser transmitting module
Second laser receiving module 5 respectively includes laser spacing adjusting device 15, can by the laser spacing adjusting device 15
The spacing between multiple laser emitters 6 or the spacing between multiple laser pickoffs 8 are adjusted, the purpose for the arrangement is that different
Bullet it is in different size, for lesser bullet need between laser emitter 6 spacing and multiple laser pickoffs 8 it
Between spacing turn some outer diameters to be less than bullet down, laser will necessarily be blocked without from two beam phases by guaranteeing that bullet is flown in this way
It is passed through between adjacent laser.
Further, the laser spacing adjusting device 15 includes that part accommodates multiple laser emitters 6 or laser pick-off
The sliding slot of device 8 and the bolt and nut fixed knot for being horizontally through laser emitter 6 or laser pickoff 8 and sliding slot setting
Structure, each laser emitter 6 or laser pickoff 8 correspond to a bolt and nut fixed structure, when needed, by bolt
Nut fixed structure removes, and laser emitter 6 or laser pickoff 8 is moved in the sliding slot to reduce adjacent laser transmitting
Spacing between device 6 or laser pickoff 8 to meet measurement request, again pacify bolt and nut fixed structure after regulating by distance
Dress is to fix laser emitter 6 and laser pickoff 8 according to the distance of setting.
Further, the host module 10 includes display module 11, input module 12 and processing module 13.
Further, the laser emitter 6 uses semiconductor laser, and the laser pickoff 8 is photosensitive using PT204
Triode, the phototriode, signal is detected when there is laser to be blocked, and is sent to processing module, and optical signal is turned
Electric signal is turned to, logical relation is "or" between the laser pickoff in laser pick-off module, that is, has a laser pick-off module
It is not received by laser.
Further, the processing module 13 is STC89C52 type single-chip microcontroller, and input module 12 is digital analog converter, display
Module is liquid crystal display.
Further, the laser bullet speed measuring instrument further includes the target plate that second laser transmitting receiving unit side is arranged in
17。
A kind of speed-measuring method according to laser bullet speed measuring instrument described above, comprising the following steps:
Step 1: bullet 16 is injected from first laser transmitting receiving unit side, the bullet 16 is passing through described the
The laser that any laser emitter 6 when one Laser emission receiving unit in first laser transmitting receiving unit issues is by bullet 16
It blocks, first laser receiving module 4 transmits a signal to host module 10, and processing module 13 starts timing；
Step 2: the bullet 16 continues second laser transmitting when flight emits receiving unit across the second laser and connects
It receives the laser that any laser emitter 6 in unit issues to be blocked by bullet 16, second laser transmitting module 3 transmits a signal to
Host module 10,13 timing of processing module terminate, time difference t；
Step 3: the first laser is emitted by receiving unit by input module 12 and second laser emits receiving unit
Between distance s input processing module 13, processing module 13 calculate bullet velocity v simultaneously shown by display module, the son
Bullet speed v calculation formula is v=s/t.
The foregoing is only a preferred embodiment of the present invention, is not intended to restrict the invention, for the skill of this field
For art personnel, the invention may be variously modified and varied.All within the spirits and principles of the present invention, made any to repair
Change, equivalent replacement, improvement etc., should all be included in the protection scope of the present invention.
Claims (8)
1. a kind of laser bullet speed measuring instrument, which is characterized in that the measuring instrument includes: the first power module (1), first laser hair
Receiving unit, second laser transmitting receiving unit, host module (10) and second power supply module (14), first laser transmitting is penetrated to connect
Receiving unit includes first laser transmitting module (2) and first laser receiving module (4), and second laser emits receiving unit and includes the
Dual-laser transmitting module (3) and second laser receiving module (5), the first laser transmitting module (2) include multiple setting side by side
The laser emitter (6) set, the first laser receiving module (4) includes multiple laser pickoffs arranged side by side (8), described
First laser transmitting module (2) and first laser receiving module (4) are oppositely arranged and spaced apart, the laser emitter
(6) laser pickoff (8) of laser emitter (6) identical and each with the quantity of laser pickoff (8) and cooperation correspondence is set
It sets, the structure of first laser transmitting receiving unit and second laser transmitting receiving unit is identical and distance s between the two, institute
It states the first power module (1) to connect with first laser transmitting module (2) and second laser transmitting module (3), the first laser
Receiving module (4) and second laser receiving module (5) are connect with host module (10), the second power supply module (14) and host
Module (10) connection.
2. laser bullet speed measuring instrument according to claim 1, which is characterized in that the first laser transmitting module (2),
One laser pick-off module (4), second laser transmitting module (3) and second laser receiving module (5) respectively include laser spacing
Regulating device (15) can adjust the spacing between multiple laser emitters (6) by the laser spacing adjusting device (15)
Or the spacing between multiple laser pickoffs (8).
3. laser bullet speed measuring instrument according to claim 2, which is characterized in that laser spacing adjusting device (15) packet
Part is included to accommodate the sliding slot of multiple laser emitters (6) or laser pickoff (8) and be horizontally through laser emitter (6) or swash
The bolt and nut fixed structure of optical receiver (8) and sliding slot setting, each laser emitter (6) or laser pickoff (8)
Correspond to a bolt and nut fixed structure.
4. laser bullet speed measuring instrument according to claim 1-3, which is characterized in that host module (10) packet
Include display module (11), input module (12) and processing module (13).
5. laser bullet speed measuring instrument according to claim 4, which is characterized in that the laser emitter (6) uses and partly leads
Body laser, the laser pickoff (8) use phototriode.
6. laser bullet speed measuring instrument according to claim 5, which is characterized in that the processing module (13) is single-chip microcontroller,
Input module (12) is digital analog converter, and display module is liquid crystal display.
7. laser bullet speed measuring instrument according to claim 1, which is characterized in that the laser bullet speed measuring instrument further includes setting
Set the target plate (17) in second laser transmitting receiving unit side.
8. a kind of speed-measuring method of laser bullet speed measuring instrument according to claim 1-7, which is characterized in that including
Following steps:
Step 1: bullet (16) is injected from first laser transmitting receiving unit side, the bullet (16) is passing through described the
The laser that any laser emitter (6) when one Laser emission receiving unit in first laser transmitting receiving unit issues is by bullet
(16) it blocks, first laser receiving module (4) transmits a signal to host module (10), and processing module (13) starts timing；
Step 2: the bullet (16) is continued second laser transmitting when flight emits receiving unit across the second laser and is received
The laser that any laser emitter (6) in unit issues is blocked by bullet (16), and second laser transmitting module (3) passes signal
It gives host module (10), processing module (13) timing terminates, time difference t；
Step 3: by input module (12) by the first laser emit receiving unit and second laser emit receiving unit it
Between distance s input processing module (13), processing module (13) calculate bullet velocity v simultaneously shown by display module, it is described
Bullet velocity v calculation formula is v=s/t.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959611.7A CN109212251A (en) | 2018-08-22 | 2018-08-22 | A kind of laser bullet speed measuring instrument and its speed-measuring method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810959611.7A CN109212251A (en) | 2018-08-22 | 2018-08-22 | A kind of laser bullet speed measuring instrument and its speed-measuring method |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109212251A true CN109212251A (en) | 2019-01-15 |
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ID=64989377
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810959611.7A Pending CN109212251A (en) | 2018-08-22 | 2018-08-22 | A kind of laser bullet speed measuring instrument and its speed-measuring method |
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| Country | Link |
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| CN (1) | CN109212251A (en) |
Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201289492Y (en) * | 2008-11-14 | 2009-08-12 | 绍兴市质量技术监督检测院 | Laser speedometer |
| CN202777683U (en) * | 2012-09-24 | 2013-03-13 | 鹤岗师范高等专科学校 | Table tennis table with ball serving speed measuring device |
| CN203037664U (en) * | 2013-05-02 | 2013-07-03 | 无锡职业技术学院 | Laser velocimeter |
| CN106556842A (en) * | 2016-10-27 | 2017-04-05 | 湖南大学 | A kind of laser velocimeter device for taking into account high-speed camera Trigger Function |
| CN206804683U (en) * | 2017-03-17 | 2017-12-26 | 安徽理工大学 | One kind is based on laser induced impact tachymeter |
| CN107990795A (en) * | 2017-12-01 | 2018-05-04 | 西安工业大学 | A kind of shell speed measuring device and its application method |
| CN108008143A (en) * | 2017-12-01 | 2018-05-08 | 西安工业大学 | A kind of laser velocimeter devices and methods therefor of bullet exit portal speed |
| CN208833793U (en) * | 2018-08-22 | 2019-05-07 | 南京理工大学 | A kind of laser bullet speed measuring instrument |
-
2018
- 2018-08-22 CN CN201810959611.7A patent/CN109212251A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN201289492Y (en) * | 2008-11-14 | 2009-08-12 | 绍兴市质量技术监督检测院 | Laser speedometer |
| CN202777683U (en) * | 2012-09-24 | 2013-03-13 | 鹤岗师范高等专科学校 | Table tennis table with ball serving speed measuring device |
| CN203037664U (en) * | 2013-05-02 | 2013-07-03 | 无锡职业技术学院 | Laser velocimeter |
| CN106556842A (en) * | 2016-10-27 | 2017-04-05 | 湖南大学 | A kind of laser velocimeter device for taking into account high-speed camera Trigger Function |
| CN206804683U (en) * | 2017-03-17 | 2017-12-26 | 安徽理工大学 | One kind is based on laser induced impact tachymeter |
| CN107990795A (en) * | 2017-12-01 | 2018-05-04 | 西安工业大学 | A kind of shell speed measuring device and its application method |
| CN108008143A (en) * | 2017-12-01 | 2018-05-08 | 西安工业大学 | A kind of laser velocimeter devices and methods therefor of bullet exit portal speed |
| CN208833793U (en) * | 2018-08-22 | 2019-05-07 | 南京理工大学 | A kind of laser bullet speed measuring instrument |
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| CB03 | Change of inventor or designer information |
Inventor after: Xing Huadao Inventor after: Wen Zhu Inventor after: Gao Fei Inventor after: Han Songtong Inventor before: Xing Huadao Inventor before: Qiu Yanyu Inventor before: Wen Zhu Inventor before: Han Songtong Inventor before: Gao Fei |
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