CN101551520B - Active type rotary flat mirror scanner - Google Patents
Active type rotary flat mirror scanner Download PDFInfo
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- CN101551520B CN101551520B CN2009100511896A CN200910051189A CN101551520B CN 101551520 B CN101551520 B CN 101551520B CN 2009100511896 A CN2009100511896 A CN 2009100511896A CN 200910051189 A CN200910051189 A CN 200910051189A CN 101551520 B CN101551520 B CN 101551520B
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Abstract
The invention relates to an active type rotary flat mirror scanner, in which, a controllable motor is fixed on a motor fixing frame; a mechanical coding disc and a rear balance weight is fixed to the rear end of the motor shaft by pins; a slip ring is connected to the front end of the motor shaft by the fixing frame; a front balance weight on the front end of the motor shaft is fitted with the keyway on the motor shaft by a positioning key, and is stopped by an extra axial stopping screw; a scanning reception mirror is connected with the motor shaft by a 45 degrees connection block; a verticalthrough hole is formed on the 45 degrees connection block and the scanning reception mirror together; the collimator lens barrel of a light source module is inserted into the through hole, and is con nected with the motor shaft by the 45 degrees connection block; while the reflecting surface center of the scanning reception mirror is on the central axis of the light source module; and the light source rotates along the scanning reception mirror controlled by the motor to realize active covering type scanning. The invention has the following advantages: it realizes omni directional covering type scanning, improves luminous energy utilization ratio, and controls the operating temperature effectively by combining mechanical heat dissipation and airflow heat dissipation.
Description
Technical field
The scanister of features such as the physics that the present invention relates to utilize light signal to measure object to be measured, chemistry, the particularly a kind of utilization active type rotary flat mirror scanner that signal is measured physics such as the moisture content of object to be measured, composition, color, distance, temperature and chemical feature that diffuses.
Background technology
At present, in the diffuse reflectance measurement technical field, well-known detection instrument mostly adopts following two kinds of schemes both at home and abroad: first, static single-point type is surveyed: this scheme adopts static light path that material is carried out the monitoring of sampling formula, monitoring result has significant locality characteristics, can not reflect effectively that to the sudden change of other a certain scope this tends to influence the qualification rate of entire block, because light source is static, radiating effect is also not ideal in addition; The second, the drive sweep formula is surveyed: this scheme generally is used in imaging field, and sweep test is an independent scanning mirror, mostly utilize the natural light signal that target is analyzed, light source independently not, when the high light signal of a certain special wave band of need, this Scan Architecture has limitation rather.
Summary of the invention
Technical matters of the present invention is that a kind of active type rotary flat mirror scanner of realizing comprehensive cover type scanning will be provided.At first it can not only carry out comprehensive cover type scanning to object to be measured, can also require to change transmitting illuminant according to different detections; Secondly because light source is placed directly on the scanner, shortens light path greatly, reduced the transition optical element, therefore improved the efficiency of light energy utilization and instrument signal to noise ratio.Light source and radiating block rotate with scanning reception mirror in addition, and this structure integrates the machinery heat radiation and the air-flow exchange is dispelled the heat, and has solved by the too high serial problem of bringing of light-source temperature, makes working environment more stable.
In order to solve above technical matters, the invention provides a kind of active type rotary flat mirror scanner, a controllable motor is fixed on the motor fixing frame, and whole scanner can be fixed by motor fixing frame and the physical construction that is produced instruments; One mechanical coding dish and back balance piece are fixed in the rear end of motor shaft by the pin-and-hole of register pin and motor shaft, the rotor portion of one slip ring module closely cooperates by insulating sleeve and motor shaft, add stop screw stop, the stationary part of slip ring module is fixed by the front end face of slip ring fixed mount and motor housing, one forward horizontal stand piece is enclosed within on the motor shaft of front end and cooperates with the keyway of motor shaft by positioning key, adds the axial retention screw stop; One scan receives mirror and is connected with motor shaft by 45 ° of contiguous blocks, 45 ° of contiguous blocks receive mirror with scanning and are provided with a vertical through hole jointly, the collimation lens barrel of one light source module inserts in this through hole and is fixed on 45 ° of contiguous blocks, be connected with motor shaft by 45 ° of contiguous blocks, and scanning receives mirror reflection face center on the main shaft of light source module, light source receives mirror with scanning and rotates under Electric Machine Control, realizes active cover type scanning.
It is the elliptic plane catoptron that described scanning receives mirror, and the angle of minute surface and motor shaft is that 45 ° of tolerances are ± 0.2 °.For guarantee that 45 ° of scannings receive the accuracy of mirror angle, adopt face and face to join when being connected with motor shaft.In order to make the homogeneity of back light path received signal, scanning receives mirror and adopts the elliptic plane catoptron, and the reflecting surface center must be coaxial with the center of condenser, light source, Guang Lan, collimating mirror.
Described light source module comprises condenser, light source, light hurdle and collimating mirror, on the pin of described light source, radiating block is housed, machinery heat radiation and air-flow exchange heat radiation are combined, and radiating effect improves greatly, has controlled the working temperature of scanner effectively.Aspect optics, adopt by condenser, light source, Guang Lan, collimation lens and 45 ° of scannings and receive the coaxial light path that mirror is formed.Relatively from the axial light path system, because the close coupled type light path system takes up room little, simple in structure, can alleviate the load that mechanical aspects is brought to motor, be convenient to dynamically balanced correction, the adding of condenser makes the efficiency of light energy utilization improve greatly, the selection of the focal length of the position on light hurdle and collimation lens is particularly important in this light path, and reasonably the outgoing spot size can be effectively controlled in design, makes the outgoing hot spot have more homogeneity and regularity.Arrive detected object through scanning the center pit that receives mirror on the light transmission light hurdle that light source under this structure sends behind the collimation lens collimation, diffusing after detected object absorbs returned and scanned the reception mirror and light path and detection system after its reflection is given.
The rotor portion of described slip ring module is to fix with screw behind wringing fit, insulating sleeve and the motor shaft close-fitting of conductive copper axle and insulating sleeve, and wherein the conductive copper axle is connected with the light source of light source module; The stationary part of described slip ring module is to be formed by stage clip, carbon brush and slip ring fixed mount, and wherein carbon brush is connected with power supply by lead.
Aspect the power supply of light source, adopting common carbon brush contact power supply is the slip ring module, and fixed part adopts carbon brush, and rotating part adopts the conductive copper axle.Be to guarantee the stability of power supply, adopt four sides stage clip pushing carbon brush formula power supply up and down, Dui Cheng four pairs of carbon brush and link power circuit have effectively been avoided the loose contact problem of being brought by the motor shaft disturbance up and down.Adopt the constant current source as power supply simultaneously, the current fluctuation that changes in resistance is brought when having avoided carbon brush contact conductive copper axle makes the more stable of in rotary course light source luminescent.
Aspect the angle position control of motor rotation, add mechanical coding dish and optocoupler in the motor shaft rear end, so that accurately judge the source of information, the information of surveying the diverse location object is exported.
Superior effect of the present invention is:
1) realizes comprehensive cover type scanning, broken the limitation of traditional industrial online detection instrument detection of a target;
2) lack light path, few optical element makes the efficiency of light energy utilization of the present invention and signal to noise ratio (S/N ratio) improve greatly;
3) the present invention can change light source according to different requirements, has effectively improved the passive analytical characteristic of conventional scanners;
4) the present invention makes machinery heat radiation and air-flow exchange heat radiation engage effective working temperature of having controlled, and more static light source improves aspect heat sinking function greatly.
Description of drawings
Fig. 1 is a structural representation of the present invention;
Fig. 2 is the cut-open view of Fig. 1;
Fig. 3 is the structural representation of light source module of the present invention;
Fig. 4 is the structural representation of slip ring module of the present invention;
Fig. 5 is the cut-open view of Fig. 4;
The number in the figure explanation
1-mechanical coding dish; The 2-motor fixing frame;
3-slip ring module;
301-slip ring fixed mount; 302-conductive copper axle;
The 303-insulating sleeve; The 304-stage clip;
The 305-carbon brush; The 306-lead;
4-45 ° of contiguous block;
The 5-light source module;
The 501-condenser; The 502-light source;
503-light hurdle; The 504-collimation lens;
505-collimates lens barrel; The 506-radiating block;
6-back balance piece; The 7-motor;
8-forward horizontal stand piece; 9-scanning receives mirror;
The 10-motor shaft; The 11-register pin;
The 12-positioning key; The 13-pin-and-hole;
The 14-keyway.The 15-stop screw.
Embodiment
See also shown in the accompanying drawing, the invention will be further described.
As depicted in figs. 1 and 2, the invention provides a kind of active type rotary flat mirror scanner, one controllable motor 7 is fixed on the motor fixing frame 2, one mechanical coding dish 1 and back balance piece 6 are fixed in the rear end of motor shaft 10 by the pin-and-hole 13 of register pin 11 and motor shaft, one slip ring module 3 is connected with motor shaft 10 front end faces by slip ring fixed mount 301, forward horizontal stand piece 8 is enclosed within on the motor shaft of front end and cooperates with the keyway 14 of motor shaft by positioning key 12, adds 15 stop of axial retention screw; One scan receives mirror 9 and is connected with motor shaft 10 by 45 ° of contiguous blocks 4,45 ° of contiguous blocks 4 receive mirror 9 with scanning and are provided with a vertical through hole jointly, the collimation lens barrel 505 of one light source module 5 inserts in this through hole and is fixed on 45 ° of contiguous blocks 4, be connected with motor shaft 10 by 45 ° of contiguous blocks 4, and scanning receives mirror 9 reflecting surface centers on the central shaft of light source module 5, light source receives mirror 9 with scanning and rotates under motor 7 controls, realizes active cover type scanning.
It is the elliptic plane catoptron that described scanning receives mirror 9, scanning receives mirror 9 and is connected by 45 ° of contiguous blocks 4 with motor shaft 10, the connection end face of motor shaft 10 should fit like a glove with the surface of contact of 45 ° of contiguous blocks 4, cooperate the minute surface of back scanning reception mirror 9 and the angle tolerance of motor shaft to should be 45 ° ± 0.2 °, can cause when as shown in Figure 2, angular error is big that the back light path receives the stability of hot spot.For guarantee that 45 ° of scannings receive the accuracy of mirror 9 angles, adopt face and face to join when being connected with motor shaft 10.In order to guarantee the homogeneity of back light path received signal, scanning receives mirror 9 and adopts the elliptic plane catoptron, and the reflecting surface center must be coaxial with the center of condenser 501, light source 502, light hurdle 503, collimation lens 504.Ellipse scanning reception mirror 9 is particularly important among the present invention, the measurement function of the whole scanner of its decision maker, distribution according to measure spectrum, ellipse scanning receives the minute surface of mirror 9 and selects for use different films to be, the selection of its base material and Coating Materials has bigger influence to the signal to noise ratio (S/N ratio) and the stability of instrument.Because it is rotatable parts that scanning receives mirror 9, so base material will be selected the big and on-deformable material of physical strength, optional aluminium alloy or other alloy when motor speed is not high, motor speed can select to cast magnesium alloy on 1,000 right sides of turning left, if can first chemical method plate one deck nickel-phosphorus alloy when base material is aluminium mirror or other soft material, will carry out optical polish earlier before the plated film.The selection of Coating Materials will be according to the spectral range of instrument work, if be operated in visible and infrared band, can select silverskin for use, but be operated in ultraviolet, visible, infrared aluminium film, be operated in and infraredly can use the electrodeposited chromium film when less demanding, extreme ultraviolet can be used platinum film and indium film.If to the reflectivity optional dielectric multilayer highly reflecting films of using of having relatively high expectations.
As shown in Figure 3, described light source module 5 comprises condenser 501, light source 502, light hurdle 503 and collimation lens 504, radiating block 506 is housed on the pin of described light source 502, machinery heat radiation and air-flow exchange heat radiation are combined, radiating effect improves greatly, has controlled the working temperature of scanner effectively.Aspect optics, adopt by condenser 501, light source 502, light hurdle 503, collimation lens 504 and 45 ° of scannings and receive the coaxial light path that mirror 9 is formed.Relatively from the axial light path system, because the close coupled type light path system takes up room little, simple in structure, can alleviate the load that mechanical aspects is brought to motor, be convenient to dynamically balanced correction, the adding of condenser 501 makes the efficiency of light energy utilization improve greatly, the selection of the focal length of the position on light hurdle 503 and collimation lens 504 is particularly important in this light path, and reasonably the outgoing spot size can be effectively controlled in design, makes the outgoing hot spot have more homogeneity and regularity.Arrive detected object through scanning the center pit that receives mirror 9 on the light transmission light hurdle 503 that light source 502 under this structure sends behind collimation lens 504 collimations, diffusing after detected object absorbs returned and scanned reception mirror 9 and light path and detection system after its reflection is given.
Described light source module 5 is the module class structure, is convenient to dismounting and replacing.When this module was installed, condenser 501 can directly be fixed with glue, and collimating mirror 504 generally is fixed on the agent structure of light source module by the screw thread of nearly collimating mirror 504 ends of collimation lens barrel.The fixing of light source also can adopt modularization to fix, the present invention has been light source design a kind of shell, and light source is fixed by the main body mechanism of shell and light source module.The light hurdle can be an absolute construction, also can with the agent structure one of light source module.The concentricity on collimating mirror and condenser and light hurdle guarantees by overall diameter separately.The reflecting surface center that will guarantee the center of condenser 501, light source 502, light hurdle 503, collimation lens 504 after installing and scan reception mirror 9 is on same straight line, and is promptly coaxial.The size on collimation lens 504 optical parametrics and light hurdle 503 and position can influence the quality of outgoing hot spot, and this scanner will guarantee rotation symmetry and the uniformity coefficient of outgoing hot spot around optical axis.
As Fig. 4, shown in Figure 5, the rotor portion of described slip ring module 3 is conductive copper axle 302, insulating sleeve 303; The stationary part of described slip ring module 3 is to be formed by stage clip 304, carbon brush 305 and slip ring fixed mount 301.
Described slip ring module 3 is the module class structure, is convenient to dismounting and replacing.When this module is installed, at first, then insulating sleeve 303 is cooperated with motor shaft 10 with conductive copper axle 302 and insulating sleeve 303 close-fittings together, conduct electricity coaxial 302, insulating sleeve 303, usefulness stop screw stop formation rotor portion when motor shaft 10 cooperates.Stage clip 304, carbon brush 305 and slip ring fixed mount 301 form stationary part.The carbon brush 305 of stationary part links to each other with extraneous power supply by lead 306, and the conduction of rotor portion coaxial 302 links to each other with light source 502, and slip ring module 3 is fixing with motor 7 by slip ring fixed mount 301.Conduction coaxial 302 is general with better conductivity T1, T2, TU1, TU2, TAg0.1 in slip ring module 3, in order to reduce carbon brush 305 and the contact resistance of conduction between the coaxial copper 302, the present invention adopts up and down the symmetrical structure totally four pairs of stage clips 304 and carbon brush 305.
Aspect the power supply of light source 502, adopt common carbon brush 305 contacts power supply, fixed part adopts carbon brush 305, and rotating part adopts conductive copper axle 302.Be to guarantee the stability of power supply, adopt four sides stage clip 304 pushing carbon brush 305 formulas power supply up and down, Dui Cheng four pairs of carbon brush 305 and link power circuit have effectively been avoided the loose contact problem of being brought by the motor shaft disturbance up and down.Adopt the constant current source as power supply simultaneously, the current fluctuation that changes in resistance is brought when having avoided carbon brush 305 contact conductive copper axles 302 makes the more stable of in rotary course light source luminescent.
Aspect the angle position control of motor rotation, add mechanical coding dish 1 and optocoupler in motor shaft 10 rear ends, so that accurately judge the source of information, the information of surveying the diverse location object is exported.
After all kinds of devices install, at first scanner is fixed on the dynamic balancing machine, makes scanner be issued to requirement for dynamic balance at specific rotating speed by regulating forward horizontal stand piece 8 and back balance fast 6.After transient equilibrium debugging finished, scanner can operate as normal, and dynamically balanced calibration accuracy directly influences the extent of vibration of the level of disruption and the complete machine of motor shaft 10.
Application of the present invention: active type rotary flat mirror scanner is the wider scanner of a kind of range of application, because it is level crossings that its scanning receives mirror 9, there is not optical aberration, so have relative independence with the design of the rear optical system of its coupling, substantially do not have other coupling parameter except distance, comparatively the Chang Yong rear optical system with its coupling has Newtonian telescope system, Galileo telescope system, Cassegrain telescope system etc.
The system that is combined by active type rotary flat mirror scanner and back optical texture is called the optical mechaical scanning detection system, can be used for detecting cereal crops such as wheat, soybean with industrial crops and iron and steel, glass such as tobacco leaf, tealeaves, spin, color, shape, moisture content, become the to grade physics and the chemical characteristic of the raw material of industry such as wood chip, by select for use different rear optical systems and and the optical detector of different spectral coverage can be qualitative or quantitative above-mentioned physics and chemical feature to target analyze.
The total general work mode of active type rotary flat mirror scanner has two kinds, a kind of is static observation formula scanning, be used on the dynamic production line, scanner location is fixed, the translation of material relative scanning device, generally be used in the travelling belt top of objects to be measured such as tobacco, wood chip, iron and steel, glass, the translation of travelling belt and the rotation of scanner form cover type scanning; Another is to dynamic observe formula scanning, is used to measure static target on a large scale, and scanner is positioned on the mobile device, and the rotation of scanner combines with the translation of mobile device and realizes cover type scanning.
Claims (6)
1. active type rotary flat mirror scanner is characterized in that:
One controllable motor is fixed on the motor fixing frame, one mechanical coding dish and back balance piece are fixed in the rear end of motor shaft by pin, one slip ring module is fixed by slip ring fixed mount and motor, the forward horizontal stand piece is enclosed within on the front end of motor shaft and by positioning key and cooperates with the keyway of motor shaft, uses the axial retention screw retention; One scan receives mirror and is connected with motor shaft by 45 ° of contiguous blocks, 45 ° of contiguous blocks receive mirror with scanning and are provided with a vertical through hole jointly, the collimation lens barrel of one light source module inserts in this through hole and is fixed on 45 ° of contiguous blocks, be connected with motor shaft by 45 ° of contiguous blocks, and scanning receives mirror reflection face center on the central shaft of light source module, light source receives mirror with scanning and rotates under Electric Machine Control, realizes active cover type scanning.
2. by the described active type rotary flat mirror scanner of claim 1, it is characterized in that:
Described light source module is fixed on the motor shaft by 45 ° of contiguous blocks, rotates under the control of motor with scanning mirror, has realized the light source rotation.
3. by the described active type rotary flat mirror scanner of claim 1, it is characterized in that:
Described light source module comprises condenser, light source, light hurdle and collimating mirror, on the pin of described light source radiating block is housed, and light source is at the rear of scanning reception mirror, and the center pit that light beam sees through scanning reception mirror directly arrives detected object.
4. by the described active type rotary flat mirror scanner of claim 1, it is characterized in that:
It is the elliptic plane catoptron that described scanning receives mirror, and the angle of minute surface and motor shaft is 45 °, and tolerance is ± 0.2 °.
5. by the described active type rotary flat mirror scanner of claim 1, it is characterized in that:
The rotor portion of described slip ring module is the wringing fit of conductive copper axle and insulating sleeve, fixes with the stop screw structure behind the close-fitting of insulating sleeve and motor shaft, and wherein the conductive copper axle is connected with the light source of light source module;
The stationary part of described slip ring module is to be formed by stage clip, carbon brush and slip ring fixed mount, and wherein carbon brush is connected with power supply by lead.
6. by the described active type rotary flat mirror scanner of claim 5, it is characterized in that:
Described slip ring module adopts four pairs of stage clip and the carbon brush of symmetrical structure up and down, and light source power supply adopts stage clip pushing carbon brush power supply mode, up and down Dui Cheng four pairs of carbon brush and link power circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100511896A CN101551520B (en) | 2009-05-14 | 2009-05-14 | Active type rotary flat mirror scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009100511896A CN101551520B (en) | 2009-05-14 | 2009-05-14 | Active type rotary flat mirror scanner |
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| Publication Number | Publication Date |
|---|---|
| CN101551520A CN101551520A (en) | 2009-10-07 |
| CN101551520B true CN101551520B (en) | 2010-12-29 |
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| CN2009100511896A Active CN101551520B (en) | 2009-05-14 | 2009-05-14 | Active type rotary flat mirror scanner |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105571485A (en) * | 2015-12-15 | 2016-05-11 | 中科光绘（上海）科技有限公司 | Rotating mirror scanning apparatus integrated with rotation and swing |
| CN105606229B (en) * | 2015-12-28 | 2019-05-17 | 广东工业大学 | Rotary scanning type exempts to dress indoor positioning device and method |
| CN107037498B (en) * | 2017-03-23 | 2018-11-09 | 西安交通大学 | Novel 360 ° of imaging and passive imaging detection devices based on annular generator and its implementation |
| CN107037499B (en) * | 2017-03-23 | 2018-08-28 | 西安交通大学 | The novel 360 ° of imaging and passive imaging detection devices of one kind and its implementation |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2323491A (en) * | 1996-06-24 | 1998-09-23 | Mitsui Shipbuilding Eng | Laser obstacle detection |
| WO2002103433A3 (en) * | 2001-06-19 | 2003-03-13 | Idea Machine Dev | Compact linear scanner system |
| CN101183070A (en) * | 2007-12-14 | 2008-05-21 | 天津大学 | Bar-shape spectrophotometric device |
-
2009
- 2009-05-14 CN CN2009100511896A patent/CN101551520B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| GB2323491A (en) * | 1996-06-24 | 1998-09-23 | Mitsui Shipbuilding Eng | Laser obstacle detection |
| WO2002103433A3 (en) * | 2001-06-19 | 2003-03-13 | Idea Machine Dev | Compact linear scanner system |
| CN101183070A (en) * | 2007-12-14 | 2008-05-21 | 天津大学 | Bar-shape spectrophotometric device |
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| CN101551520A (en) | 2009-10-07 |
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Owner name: QINHUANGDAO TOBACCO MACHINERY CO., LTD. Free format text: FORMER OWNER: SHANGHAI YINGLEI INFRARED MOISTURE SYSTEM TECHNOLOGY CO., LTD. Effective date: 20121228 Owner name: SHANGHAI YINGLEI INFRARED MOISTURE SYSTEM TECHNOLO Effective date: 20121228 |
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Inventor after: He Jie Inventor after: Wang Xiaofei Inventor after: Zhou Yanmu Inventor after: Liu Junmin Inventor after: Yang Yubo Inventor after: Liu Chengguang Inventor after: Zhao Xinhui Inventor after: Li Lingli Inventor before: He Jie Inventor before: Zhou Yanmu Inventor before: Liu Chengguang Inventor before: Zhao Xinhui Inventor before: Li Lingli |
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Free format text: CORRECT: ADDRESS; FROM: 200433 YANGPU, SHANGHAI TO: 066318 QINHUANGDAO, HEBEI PROVINCE Free format text: CORRECT: INVENTOR; FROM: HE JIE ZHOU YANMU LIU CHENGGUANG ZHAO XINHUI LI LINGLI TO: HE JIE WANG XIAOFEI ZHOU YANMU LIU JUNMIN YANG YUBO LIU CHENGGUANG ZHAO XINHUI LI LINGLI |
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Effective date of registration: 20121228 Address after: 066318 Longhai Road, Qinhuangdao economic and Technological Development Zone, Hebei, No. 67 Patentee after: Qinhuangdao Tobacco Machinery Co., Ltd. Patentee after: Shanghai Yinglei Infrared Moisture System Technology Co., Ltd. Address before: 200433 Building No. 299, light road, Shanghai, 7 Patentee before: Shanghai Yinglei Infrared Moisture System Technology Co., Ltd. |