CN2074446U - Mechanical photographic-scanner - Google Patents
Mechanical photographic-scanner Download PDFInfo
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- CN2074446U CN2074446U CN 90221520 CN90221520U CN2074446U CN 2074446 U CN2074446 U CN 2074446U CN 90221520 CN90221520 CN 90221520 CN 90221520 U CN90221520 U CN 90221520U CN 2074446 U CN2074446 U CN 2074446U
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Abstract
The utility model relates to a mechanical dynamic speckle photographic-scanner, belonging to an experimental device of the neoteric optical measurement mechanics. The utility model can make study of the dynamic problems of objects if matches with an ordinary speckle photographic system. The driving element of the scanning mechanism of the utility model is a hollow axle, the utility model adopts a synchronous motor, and the utility model can achieve aperture rotating scan, aperture radial scan as well as shearing mirror rotating scan; the hole diameter scanning speed can be regulated conveniently and the hole diameter can be replaced conveniently according to actual needs, and when the aperture makes radial scan, the rotary aperture is Archimedes spiral groove shape to make the aperture make uniform speed scan along the radial direction. The utility model has the advantages of simple mechanical structure, reasonable structure, low cost and convenient operation, and one simple aperture scanner of the utility model can make study of dynamic problems.
Description
The present invention is a kind of device that is used for the optical measurement mechanics in modern age---dynamic speckle photographing scanning device, and particularly about a kind of mechanical type dynamic speckle photographing scanning device of forming by complete machine support, motor (comprising motor adjusting support), gear train and all parts of scanning mechanism.
Displacement, displacement gradient, vibration and strain with laser interference metering art research object are the important contents of optical measurement mechanics in modern age, and Method of Speckle Photography is the main method of research foregoing.According to retrieval: with the dynamic problem of Method of Speckle Photography research object, main at present pulse exposure method and the high-speed photography method used.The deficiency place of these two kinds of methods is that used instrument costs an arm and a leg, and need use expensive pulsed laser as the pulse exposure method, secondly is can only obtain certain several transient state information in the object dynamic process with these two kinds of methods.
The objective of the invention is for modern age optical measurement mechanics a kind of mechanical type dynamic speckle photographing scanning device that can carry out the research of object dynamic problem that cooperates with holographic photoelasticity simple in structure, easy to use, cheap for manufacturing cost is provided.
Technical scheme of the present invention is: the tumbler of (1) scanning mechanism is a tubular shaft, the tubular shaft wringing fit is contained in the bearing of large aperture, in the garden annular end face in this shaft device rotation aperture, wait packing at least three and will rotate the aperture and be adsorbed on magnet in the rotating shaft, be equipped with in the outer of axial end and make the location thing of center on shaft axis that rotates the aperture; (2) constant aperture is housed and regulates support on the support in the large aperture bearing outside, constant aperture is regulated center that support makes constant aperture on shaft axis, and makes constant aperture near (but not contacting) rotation aperture; What (3) be used for radial scan is one group of constant aperture with different flute profiles and one group and the rotation aperture with different flute profiles of constant aperture coupling, what be used for garden hook commentaries on classics scanning is biparting shape rotation aperture, and what be used for displacement gradient scanning is biparting shape shear mirror; (4) gear train adopts tower belt pulley, and being contained in has 0 °～360 ° scale marks on the belt pulley on the hollow rotating shaft; (5) motor adopts synchronous motor.
The present invention because: (1) therefore can be changed on demand easily and accurately and rotate the aperture owing to be that magnetic force with magnetic element will rotate the aperture and attract in rotating shaft the location thing of center on shaft axis that makes the rotation aperture arranged again, carries out multiple scanning; (2) constant aperture is used to realize the radial scan in aperture with the rotation aperture, changes scanning and realizes displacement gradient scanning with the rotational shear mirror to realize the garden hook with biparting shape rotation aperture, has enlarged the function of scanner; (3) gearing adopts tower belt pulley, can change sweep velocity easily, and 0 °～360 ° scale marks are arranged on the belt pulley, can understand the also angle of gated sweep easily; (4) motor adopts synchronous motor, and the slow-speed of revolution helps photographic exposure; (5) whole scanner structure is simple, and is therefore cheap.
Description of drawings: Fig. 1 is the structure side diagrammatic cross-section of complete machine; Fig. 2 is one group of constant aperture synoptic diagram with different flute profiles; Fig. 3 is the one group of rotation aperture synoptic diagram with different flute profiles that is complementary with constant aperture shown in Figure 2; Fig. 4 is used for the garden hook to change the biparting shape rotation aperture synoptic diagram of scanning and the shear mirror synoptic diagram that is used for displacement gradient scanning.
Below accompanying drawing is further described:
Fig. 1: synchronous motor ［ 3 ］, regulate support ［ 2 ］ by motor and be fixed on the complete machine support ［ 1 ］. When motor ［ 3 ］ rotates with a certain speed, rotate and passed to the rotation aperture by belt pulley ［ 4 ］, belt ［ 5 ］, belt pulley ［ 6 ］, hollow shaft ［ 7 ］. Hollow shaft ［ 7 ］ is driving member, and axle cavity ［ 23 ］ is again the scanning optical path passage simultaneously. On the garden annular end face of hollow shaft ［ 7 ］ equal division device three with upper magnet ［ 9 ］, will rotate aperture ［ 8 ］ and be adsorbed in the rotating shaft ［ 7 ］. The rotation aperture is by being positioned on ［ 8 ］ position at the location of axial end outer thing (such as the location slightly) ［ 10 ］. Fixedly aperture support ［ 11 ］ fixedly is fixed on ［ 12 ］ position in the aperture. Hollow rotating shaft ［ 7 ］ tight fit device is inner at large aperture bearing ［ 13 ］.
Fig. 2: the fixedly aperture ［ 14 ］ of three different flute profiles, ［ 15 ］, ［ 16 ］, fixedly the flute profile of aperture ［ 14 ］ is by center " 1 " font groove, fixedly the flute profile of aperture ［ 15 ］ is the isosceles triangle groove of 360 ° of trisections, and fixedly the flute profile of aperture ［ 16 ］ is by center " ten " font groove.
Fig. 3: three rotation aperture ［ 17 ］, ［ 18 ］, ［ 19 ］ that are complementary with constant aperture with the tagger making, the flute profile of ［ 17 ］ is two spiral of Archimedes; ［ 18 ］ flute profile is two spiral of Archimedes; ［ 19 ］ flute profile is four spiral of Archimedes.
Fig. 4: ［ 20 ］ are biparting shape rotation apertures, and ［ 21 ］ are biparting shape shear mirrors, and ［ 22 ］ are the side section diagrammatic sketch of shear mirror.
Embodiment:
Constant aperture ［ 14 ］ is used with rotation aperture ［ 17 ］, carries out two luminous point radial scans; Constant aperture ［ 15 ］ is used with rotation aperture ［ 18 ］, carries out three luminous point radial scans, and constant aperture ［ 16 ］ is used with rotation aperture ［ 19 ］, carries out four light and accounts for radial scan.
Remove constant aperture, biparting shape is rotated the position that aperture ［ 20 ］ is contained in ［ 8 ］ on the scanner, be rotated scanning; Shear mirror ［ 21 ］ is contained in the position of ［ 8 ］ on the scanner, carries out displacement gradient scanning.
Claims (2)
1, a kind of device that is used for the optical measurement mechanics in modern age-mechanical type dynamic speckle photographing scanning device of being made up of complete machine support, motor (comprising motor adjusting support), gear train and all parts of scanning mechanism the invention is characterized in:
(1) driving member of scanning mechanism is a tubular shaft, this wringing fit is contained in the bearing of large aperture, in the garden annular end face in turning gear rotation aperture, wait packing at least three and will rotate the aperture and be adsorbed on magnet in the rotating shaft, have in rotating shaft end face outer to make the location thing of center on shaft axis that rotates the aperture;
(2) the adjusting support of constant aperture is housed on the outrigger of large aperture bearing, the center that guarantees constant aperture and makes constant aperture near (but not contacting) rotation aperture on shaft axis;
What (3) be used for radial scan is constant aperture and one group of rotation aperture with different flute profiles of mating with constant aperture of one group of different flute profile; What be used for garden hook commentaries on classics scanning is biparting shape rotation aperture; Being used for displacement gradient scanning is shear mirror;
(4) gear train adopts tower belt pulley, and device has 0 °～360 ° scale marks on the belt pulley on the hollow rotating shaft;
(5) motor adopts synchronous motor.
2, mechanical type dynamic speckle photographing scanning device according to claim 1 is characterized in that:
What (1) be used to do two luminous point radial scans is the constant aperture and the rotation aperture that two archimedes spiral grooves are arranged with " 1 " font groove;
What (2) be used for three luminous point radial scans is constant aperture with " product " font groove and the rotation aperture that three archimedes spiral grooves are arranged;
(3) be used for four luminous point radial scans be " ten " font groove constant aperture with the rotation aperture of four archimedes spiral grooves is arranged.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221520 CN2074446U (en) | 1990-09-29 | 1990-09-29 | Mechanical photographic-scanner |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 90221520 CN2074446U (en) | 1990-09-29 | 1990-09-29 | Mechanical photographic-scanner |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2074446U true CN2074446U (en) | 1991-04-03 |
Family
ID=4899641
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 90221520 Pending CN2074446U (en) | 1990-09-29 | 1990-09-29 | Mechanical photographic-scanner |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2074446U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819164A (en) * | 2012-07-23 | 2012-12-12 | 苏州生物医学工程技术研究所 | Electric flexible hinge pinhole filter |
| CN107616806A (en) * | 2017-09-25 | 2018-01-23 | 广东影诺数字医学科技有限公司 | PET system detector rings position regulating unit and transmitting imaging device |
-
1990
- 1990-09-29 CN CN 90221520 patent/CN2074446U/en active Pending
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102819164A (en) * | 2012-07-23 | 2012-12-12 | 苏州生物医学工程技术研究所 | Electric flexible hinge pinhole filter |
| CN107616806A (en) * | 2017-09-25 | 2018-01-23 | 广东影诺数字医学科技有限公司 | PET system detector rings position regulating unit and transmitting imaging device |
| WO2019057160A1 (en) * | 2017-09-25 | 2019-03-28 | 广东影诺数字医学科技有限公司 | Position adjustment unit for detector ring of pet system and emission tomography device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| AD01 | Patent right deemed abandoned | ||
| C20 | Patent right or utility model deemed to be abandoned or is abandoned |