CN109443243A - A kind of equipment and measurement method measuring body form - Google Patents
A kind of equipment and measurement method measuring body form Download PDFInfo
- Publication number
- CN109443243A CN109443243A CN201811556982.7A CN201811556982A CN109443243A CN 109443243 A CN109443243 A CN 109443243A CN 201811556982 A CN201811556982 A CN 201811556982A CN 109443243 A CN109443243 A CN 109443243A
- Authority
- CN
- China
- Prior art keywords
- light
- detection light
- crossbar switch
- light source
- optical crossbar
- Prior art date
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- Pending
Links
- 238000000691 measurement method Methods 0.000 title description 5
- 238000001514 detection method Methods 0.000 claims abstract description 55
- 230000003287 optical effect Effects 0.000 claims abstract description 32
- 238000005259 measurement Methods 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 5
- 230000015572 biosynthetic process Effects 0.000 claims description 4
- 238000003786 synthesis reaction Methods 0.000 claims description 4
- 239000011159 matrix material Substances 0.000 claims description 3
- 239000013307 optical fiber Substances 0.000 claims description 3
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
- G01B11/00—Measuring arrangements characterised by the use of optical techniques
- G01B11/24—Measuring arrangements characterised by the use of optical techniques for measuring contours or curvatures
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Length Measuring Devices By Optical Means (AREA)
Abstract
The invention discloses a kind of equipment for measuring body form, including light source, the first optical crossbar switch, sensor and processing unit, the detection light that the light source issues is demarcated in first optical crossbar switch, detection light by calibration is radiated at testee surface, it is received after reflection by the sensor, then enters back into the processing unit.When use, we judge the distance of spot distance light source using the time difference that detection light sends and receives, the angle that coordinate and detection light further according to light source issue, calculate the coordinate of luminous point, multiple positions on testee are irradiated by detection light, the coordinate of luminous point is calculated, the shape of our available testees.It is opened the light, the light of sending is demarcated, we may insure which position the light received is using light intersection, utilize the qualified shape for filling measurement object, the speed of measurement greatly promotes, as long as while clock the enough height of accuracy, our measurement accuracy it is also ensured that.
Description
Technical field
The present invention relates to field of measuring technique, more particularly relate to a kind of measurement object distance, the equipment of shape and speed
And measurement method.
Background technique
The equipment for measuring the shape of object on the market at present probably has so several, and one is three-coordinates measuring machines, this
The movement of equipment utilization detecting head is contacted with testee, is then obtained the coordinate of each measurement point, is formed testee
The point cloud of profile, and the shape of testee is obtained, this measurement method is the most accurate, but since detecting head is by mobile flat
Platform is moved, but the limited speed that mobile platform is mobile, so measuring speed is slower, and three-coordinates measuring machine cost compared with
It is high.
Another is beaten on testee using light source, and luminous point is formed, then again with special detecting devices, detection
The coordinate of luminous point, after the position for measuring enough luminous points, the point cloud of available testee surface profile, to be produced
The shape of product.The speed of this mode ratio, mobile luminous point is more many fastly than mobile detecting head, but can only once measure testee
On a point coordinate, so speed is still not fast enough, it is therefore necessary to be improved.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of equipment and measurement method for measuring body form, can be fast
The shape of speed measurement object.
The technical solution adopted by the present invention to solve the technical problems is: a kind of equipment measuring body form, including light
Source, the first optical crossbar switch, sensor and processing unit, the detection light that the light source issues is in first optical crossbar switch
It is demarcated, the detection light by calibration is radiated at testee surface, is received after reflection by the sensor, then enters back into
The processing unit.In use, we judged using detection time difference for sending and receiving of light spot distance light source away from
From the angle that coordinate and detection light further according to light source issue calculates the coordinate of luminous point, irradiates testee by detection light
Upper multiple positions, are calculated the coordinate of luminous point, the shape of our available testees.It is opened the light using light intersection, to hair
Light out is demarcated, we may insure which position the light received is, using the qualified shape for filling measurement object, is surveyed
The speed of amount greatly promotes, as long as while clock the enough height of accuracy, our measurement accuracy it is also ensured that.
In above-mentioned technical proposal, it is preferred that the light source has one, and the light source issues a branch of detection light to described first
Optical crossbar switch is divided into multi beam by first optical crossbar switch.This mode, a light source can be visited to multi beam is simultaneously emitted by
Light is surveyed, while measuring the position of multiple points on testee, the speed of measurement greatly promotes.
In above-mentioned technical proposal, it is preferred that impinge upon after the detection light that reflects on testee received by the sensor, quilt
The second pass crossbar switch synthesis passes to the processing unit all the way.
In above-mentioned technical proposal, it is preferred that the detection light that the light source issues is transmitted to first light by optical fiber and intersects
Switch.
In above-mentioned technical proposal, it is preferred that the light source is light-pulse generator.
A method of measurement body form includes the following steps:
1) light source issues detection light L0, and simultaneity factor records the sending time T0 of detection light；
2) detection light is transported to the first optical crossbar switch input terminal, is divided into multichannel light by first optical crossbar switch, together
The first optical crossbar switch of Shi Suoshu is irradiated on testee every line structure light after calibration, every beam detection light point after calibration
It is not defined as (L1, L2 ... LN);
3) detection light forms luminous point dot matrix on testee, and the reflected light on testee is received by the sensor, then into
Enter second optical crossbar switch, the detection light of multichannel is merged into in all the way, the processing unit, the place are entered back into
Reason unit measures respectively obtains the time (T1, T2 ... TN) that every beam detection light reaches, we can calculate each tested in this way
On object each luminous point to survey meter distance, while according to detection light issue position, obtain the coordinate of each luminous point, then lead to
The coordinate for crossing each luminous point obtains the appearance profile of product.
The beneficial effects of the present invention are: in use, we judge light using the time difference that detection light sends and receives
Distance of the point apart from light source, the angle that coordinate and detection light further according to light source issue, calculates the coordinate of luminous point, passes through detection
Light irradiates multiple positions on testee, the coordinate of luminous point is calculated, the shape of our available testees.Utilize light
Intersection is opened the light, and is demarcated to the light of sending, we may insure which position the light received is, utilizes qualification dress measurement
The speed of the shape of object, measurement greatly promotes, as long as while clock the enough height of accuracy, our measurement accuracy can also protect
Card.
Detailed description of the invention
Fig. 1 is schematic diagram of the invention.
Fig. 2 is a kind of schematic diagram for being suitable for the invention optical crossbar switch.
Fig. 3 is the schematic diagram that another kind is suitable for the invention optical crossbar switch.
Specific embodiment
Present invention is further described in detail with reference to the accompanying drawings and detailed description:
Referring to Fig. 1, a kind of equipment measuring body form, including light-pulse generator 1, the first optical crossbar switch 2, the second light intersection are opened
Close 3, sensor 4 and processing unit 5.
The light-pulse generator 1 issues a branch of detection light, and the input port of first optical crossbar switch 2 is transmitted to by optical fiber,
Multi beam is divided by first optical crossbar switch 2, while every beam detection light is marked in first optical crossbar switch 2
Fixed, the detection light by calibration is radiated at 6 surface of testee, is received after reflection by the sensor 4, impinges upon testee 6
After the detection light of upper reflection is received by the sensor 4, the processing is passed to by the second pass synthesis of crossbar switch 3 all the way
Unit 5.
In use, we judge the distance of spot distance light source using the time difference that detection light sends and receives, then
According to the angle that the coordinate of light source and detection light issue, the coordinate of luminous point is calculated, is irradiated by detection light more on testee
The coordinate of luminous point is calculated in a position, the shape of our available testees.It is opened the light using light intersection, to sending
Light is demarcated, we may insure which position the light received is, the shape of object is measured using qualified dress, measurement
Speed greatly promotes, as long as while clock the enough height of accuracy, our measurement accuracy it is also ensured that.
In use, we are opened the light using light intersection, and it can be to multi beam detection light be simultaneously emitted by, the speed of measurement mentions significantly
Rise, as long as while clock the enough height of accuracy, our measurement accuracy it is also ensured that.
The detection light reflected on testee is impinged upon by after sensor reception, closes crossbar switch synthesis by described second
The processing unit is passed to all the way.
Referring to figs. 2 and 3, in the present invention optical crossbar switch form that uses can there are many, MEMS as shown in Figure 2 turns
Mirror switch and LC photoswitch shown in Fig. 3 or other any optical crossbar switches.
A method of measurement body form includes the following steps:
1) light source issues detection light L0, and simultaneity factor records the sending time T0 of detection light；
2) detection light is transported to the first optical crossbar switch input terminal, is divided into multichannel light by first optical crossbar switch, together
The first optical crossbar switch of Shi Suoshu is irradiated on testee every line structure light after calibration, every beam detection light point after calibration
It is not defined as (L1, L2 ... LN);
3) detection light forms luminous point dot matrix on testee, and the reflected light on testee is received by the sensor, then into
Enter second optical crossbar switch, the detection light of multichannel is merged into in all the way, the processing unit, the place are entered back into
Reason unit measures respectively obtains the time (T1, T2 ... TN) that every beam detection light reaches, we can calculate each tested in this way
On object each luminous point to survey meter distance, while according to detection light issue position, obtain the coordinate of each luminous point, then lead to
The coordinate for crossing each luminous point obtains the appearance profile of product.
Claims (6)
1. a kind of equipment for measuring body form, it is characterised in that: including light source, the first optical crossbar switch, sensor and processing
Unit, the detection light that the light source issues are demarcated in first optical crossbar switch, the detection light irradiation by calibration
It on testee surface, is received after reflection by the sensor, then enters back into the processing unit.
2. the equipment of measurement body form according to claim 1, it is characterised in that: the light source has one, the light
Source issues a branch of detection light to first optical crossbar switch, is divided into multi beam by first optical crossbar switch.
3. the equipment of measurement body form according to claim 1, it is characterised in that: it further include the second optical crossbar switch,
The detection light reflected on testee is impinged upon by after sensor reception, is transmitted all the way by the second pass crossbar switch synthesis
To the processing unit.
4. the equipment of measurement body form according to claim 2, it is characterised in that: the detection light that the light source issues by
Optical fiber is transmitted to first optical crossbar switch.
5. the equipment of measurement body form according to claim 1, it is characterised in that: the light source is light-pulse generator.
6. for a kind of method for measuring body form as claimed in claim 2, it is characterised in that include the following steps:
1) light source issues detection light L0, and simultaneity factor records the sending time T0 of detection light；
2) detection light is transported to the first optical crossbar switch input terminal, is divided into multichannel light by first optical crossbar switch, together
The first optical crossbar switch of Shi Suoshu is irradiated on testee every line structure light after calibration, every beam detection light point after calibration
It is not defined as (L1, L2 ... LN);
3) detection light forms luminous point dot matrix on testee, and the reflected light on testee is received by the sensor, then into
Enter second optical crossbar switch, the detection light of multichannel is merged into in all the way, the processing unit, the place are entered back into
Reason unit measures respectively obtains the time (T1, T2 ... TN) that every beam detection light reaches, we can calculate each tested in this way
On object each luminous point to survey meter distance, while according to detection light issue position, obtain the coordinate of each luminous point, then lead to
The coordinate for crossing each luminous point obtains the appearance profile of product.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811556982.7A CN109443243A (en) | 2018-12-19 | 2018-12-19 | A kind of equipment and measurement method measuring body form |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201811556982.7A CN109443243A (en) | 2018-12-19 | 2018-12-19 | A kind of equipment and measurement method measuring body form |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109443243A true CN109443243A (en) | 2019-03-08 |
Family
ID=65560410
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201811556982.7A Pending CN109443243A (en) | 2018-12-19 | 2018-12-19 | A kind of equipment and measurement method measuring body form |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109443243A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998781A (en) * | 2019-05-27 | 2020-11-27 | 柯尼卡美能达株式会社 | Measuring device, image forming apparatus, and measuring method |
| CN114557829A (en) * | 2022-03-25 | 2022-05-31 | 上海联影医疗科技股份有限公司 | Movable sickbed and control method thereof |
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|---|---|---|---|---|
| CN1305554A (en) * | 1998-06-10 | 2001-07-25 | 威尔公路有限公司 | Device for determining the contour of road surface |
| CN1510392A (en) * | 2002-12-25 | 2004-07-07 | 合肥工业大学 | Parallel astigmatic three-dimensional focusing detecting method and apparatus thereof |
| CN101080608A (en) * | 2005-04-14 | 2007-11-28 | 松下电器产业株式会社 | Visual inspection device and method |
| JP2012093225A (en) * | 2010-10-27 | 2012-05-17 | Nikon Corp | Shape measurement device, shape measurement control program and shape measurement method |
| CN103415784A (en) * | 2011-03-18 | 2013-11-27 | 罗伯特·博世有限公司 | Measuring apparatus and measuring device for measuring a target object in a multidimensional manner |
| CN106338259A (en) * | 2016-10-31 | 2017-01-18 | 佛山科学技术学院 | Rod curvature measuring apparatus and measuring method |
| CN107202553A (en) * | 2017-06-27 | 2017-09-26 | 中国航空工业集团公司北京长城航空测控技术研究所 | Full visual angle scanning measurement system and its target measuring method |
| CN209230549U (en) * | 2018-12-19 | 2019-08-09 | 孙志军 | A kind of equipment measuring body form |
-
2018
- 2018-12-19 CN CN201811556982.7A patent/CN109443243A/en active Pending
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1305554A (en) * | 1998-06-10 | 2001-07-25 | 威尔公路有限公司 | Device for determining the contour of road surface |
| CN1510392A (en) * | 2002-12-25 | 2004-07-07 | 合肥工业大学 | Parallel astigmatic three-dimensional focusing detecting method and apparatus thereof |
| CN101080608A (en) * | 2005-04-14 | 2007-11-28 | 松下电器产业株式会社 | Visual inspection device and method |
| JP2012093225A (en) * | 2010-10-27 | 2012-05-17 | Nikon Corp | Shape measurement device, shape measurement control program and shape measurement method |
| CN103415784A (en) * | 2011-03-18 | 2013-11-27 | 罗伯特·博世有限公司 | Measuring apparatus and measuring device for measuring a target object in a multidimensional manner |
| CN106338259A (en) * | 2016-10-31 | 2017-01-18 | 佛山科学技术学院 | Rod curvature measuring apparatus and measuring method |
| CN107202553A (en) * | 2017-06-27 | 2017-09-26 | 中国航空工业集团公司北京长城航空测控技术研究所 | Full visual angle scanning measurement system and its target measuring method |
| CN209230549U (en) * | 2018-12-19 | 2019-08-09 | 孙志军 | A kind of equipment measuring body form |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111998781A (en) * | 2019-05-27 | 2020-11-27 | 柯尼卡美能达株式会社 | Measuring device, image forming apparatus, and measuring method |
| CN114557829A (en) * | 2022-03-25 | 2022-05-31 | 上海联影医疗科技股份有限公司 | Movable sickbed and control method thereof |
| CN114557829B (en) * | 2022-03-25 | 2023-09-19 | 上海联影医疗科技股份有限公司 | Movable sickbed and control method thereof |
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