CN1095085C - Fibre-optical unit positioning apparatus for astronomy spectrotelescope - Google Patents
Fibre-optical unit positioning apparatus for astronomy spectrotelescope Download PDFInfo
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- CN1095085C CN1095085C CN97103202A CN97103202A CN1095085C CN 1095085 C CN1095085 C CN 1095085C CN 97103202 A CN97103202 A CN 97103202A CN 97103202 A CN97103202 A CN 97103202A CN 1095085 C CN1095085 C CN 1095085C
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- optical fiber
- tubular shaft
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- control motor
- hinge
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Abstract
The present invention relates to an optical fiber positioning device on a focal plane of an astronomical optical spectrum telescope, which is composed of a rotating motion mechanism and a radial translational motion mechanism, wherein the rotating motion mechanism drives a hollow shaft to rotate within the range of (+/-) 180DEG by a control motor via a decelerating transmission mechanism, and the radial translational motion mechanism drives a parallelogram translational motion mechanism by the control motor via the transmission mechanism, so that a connecting rod board provided with optical fiber heads makes a translational motion in a certain radial direction of the hollow shaft so as to realize the polar coordinate positioning of the optical fiber heads with convenient operation. When the present invention is used in a large-size telescope, a plurality of optical fiber positioning devices are assembled on the same focal plane board so as to simultaneously observe a plurality of celestial bodies; when different sky zones are observed, the optical fiber positioning device can be conveniently and rapidly adjusted.
Description
Technical field
The present invention relates to the making of astronomical solar spectral telescope focal plane system, relate to the fiber orientation device on the focal plane particularly.
Background technology
Optical fiber is the light receiving element of astronomical solar spectral telescope.During actual observation, by optical fiber receive head aim at gather the star picture in celestial body star image position light through Optical Fiber Transmission in spectrometer.Because it district is big, celestial body quantity is many, and telescopical bore is limited, and its focal plane area is also limited, and therefore, a telescope can only be observed a part of day district in a time.Change observation day district as need, then need adjust the position that optical fiber receives head, make the celestial body star image position in its corresponding Xin Tian district.Under the situation that the focal plane area is fixed, the observer wishes can observe simultaneously star picture as much as possible, then needs to be provided with on focal plane plate optical fiber head as much as possible, and not only requiring has higher positional precision, and can conveniently adjust, and reorientates.This feasible location and installation to optical fiber head has very high technical difficulty.Now common in the world way has following two kinds: a kind of is fixing punch method, promptly the correspondence position of the celestial body star picture of distinguishing by required observation sky on a substrate distributes and stamps the hole, optical fiber is fixedly mounted in these holes then, during observation this plate is placed on the telescopical focal plane.The DSS telescope of Univ Chicago USA is promptly installed optical fiber with this method.Its deficiency is, when the observer will change observation day district, i.e. and the fiber optic substrate that will more renew, processing capacity is very big.Because its position, hole is fixed, make fine setting very inconvenient simultaneously.Another kind of way is the magnetic clasp method, it promptly is substrate with the iron plate, in the position of each corresponding celestial body star picture a magnetic discount is set, on the top of magnetic discount one prism is arranged, it is mapped to the light deflection of celestial body star picture in the optical fiber that lies low on iron plate for 90 °, and then be transferred in the spectrometer and go, the placement of magnetic clasp head is carried out by the robot of exquisiteness.Europe ESO (EuropearSouotben Obserratory) telescope is promptly used this method fixed fiber.Though this method has advantage easy to adjust, its complex structure, and also each receiving terminal all has an optical fiber to drag on substrate, therefore its cloth dot density should not be too big, because its stability and error are considered in the artificial cantilever operation of machine, generally only be applicable to small-sized fiber optic substrate simultaneously.
Summary of the invention
The object of the present invention is to provide a kind of optical fiber that can make to receive the fiber orientation device that head moves on the circumference that can change radial dimension, thereby the observer can fixedly be adjusted, in the disk to the position that optical fiber receives head one with the different star image position of correspondence.
Purpose of the present invention is realized by following mode.
Fiber orientation cell arrangement of the present invention, include gyration mechanism and radial translation motion, both constitute the polar coordinates motion, described gyration mechanism comprises revolution control motor, reduction gearing mechanism and a tubular shaft, revolution control motor drives the rotation that tubular shaft is made ± 180 ° of scopes through reduction gearing mechanism, this tubular shaft is bearing on the telescope focal plane plate, and its axis is vertical with focal plane plate; Described radial translation motion includes translation control motor and parallelogram parallel moving mechanism, described parallelogram parallel moving mechanism is by last, following two blocks of parallel-plates, hinge and link rod plate constitute, one end of two blocks of parallel-plates is hinged on the tubular shaft upper surface by hinge, the other end of two parallel-plates is hinged on the link rod plate by hinge, described translation control motor is fixedly mounted on the upper surface of tubular shaft, and be connected with reduction gearing mechanism, this reduction gearing mechanism includes and converts straight-line throw-over gear with rotatablely moving to, as feed screw nut's motion, the oblique contract motions of spiral etc., its last output are connected on the parallel-plate or link rod plate in the above-mentioned parallel-crank mechanism; Described link rod plate is provided with the hole that is used to install the optical fiber head, this axially bored line and tubular shaft parallel axes, and optical fiber is fixed in this hole, and optical fiber is drawn from the tubular shaft endoporus.Described hinge preferably uses flexible hinge, also can use general swing hinge.
In above-mentioned gyration mechanism and radial translation motion, for eliminating the hysterisis error that occurs in the transmission process,, elimination clearance mechanism common in the prior art can be set in gear train to guarantee the positional precision in the fibre movement, as spring anti-backlash mechanism, fixed anti-backlash mechanism etc.
The present invention is used in the optical fiber head of observation celestial body star picture when doing gyration along with tubular shaft, and under the drive of parallelogram parallel moving mechanism, do translation, the reception end face that makes optical fiber accept head does not produce deflection, optical fiber is connected on the spectrometer after passing in the tubular shaft endoporus on the other hand, basically do not rotate and produce torsional deformation with tubular shaft, therefore this device can guarantee that optical fiber head is positioned at the best and accepts the position, and receiving efficiency is preferably arranged; Simultaneously, this device makes the movement locus of optical fiber head by two Electric Machine Control, has realized the polar coordinates location, and non-blind area in its control area can accurately be located at an arbitrary position.Therefore, when the observer need change observation sky district, only need to control two control motors, optical fiber head is adjusted to new observation position accurately locate, need not change other device, thereby provide convenience to the observer.
The present invention can be used in the general astronomical solar spectral telescope, is specially adapted to large-sized astronomical solar spectral telescope.When being used for large-sized astronomical solar spectral telescope, many cell arrangements can be assembled on the same focal plane plate.When for example on the ball focal plane of diameter 1.75m, 4000 cell arrangements of the present invention being installed, not only can realize observing simultaneously 4000 celestial bodies, and when distinguishing in the different sky of observation, the observer can adjust quickly and easily.Compare the location and installation mode of using other, the present invention also has bearing accuracy height, quick, the total advantage of low manufacturing cost in location.
Description of drawings
Be further described below by drawings and Examples.
Fig. 1 is a principle of the invention structural representation.
Fig. 2 is an embodiment of the present invention structural representation.This figure is mainly used in and expresses the radial translation motion.
Embodiment
Among Fig. 1, (1) is revolution control motor A, and (2) are rotary decelerating gear set A, (3) be tubular shaft, (4) are bearing, and (5) are focal plane plate, (6) be translation control motor B, (7) are translation train of reduction gears B, and (8) are screw rod, (9) be nut, (10), (11) be upper and lower parallel-plate, (12) are link rod plate, (13) are flexible hinge, (14) optical fiber, (15) are hold-down support.
As can be seen from Figure 1, when revolution control motor A (1) action,, the gear that is packed on the tubular shaft is rotated, thereby tubular shaft (3) is rotated through rotary decelerating gear set A.Tubular shaft is installed on the focal plane plate (5), and by left and right sides bearing (4) supporting, can select stepper motor for use in actual the use, makes it by the forward and reverse driving of gating pulse requirement, thereby makes tubular shaft do the rotation of ± 180 ° of scopes.When translation control motor B (6) rotates, driving screw rod (8) through translation train of reduction gears B (7) rotates, nut engaged (9) is connected on the parallel-plate (10) with it, the left and right end of upper and lower parallel-plate (10), (11) is connected on the upper surface and link rod plate (12) of tubular shaft (3) by 4 flexible hinges (13), constitute the relative tubular shaft of energy and make the parallel-crank mechanism of translation motion, when translation motor B drove the screw rod rotation, link rod plate (12) was along a certain diametric(al) translation of tubular shaft.The head of optical fiber (14) is fixed on the link rod plate, and optical fiber passes from the tubular shaft endoporus and draws, and the optical fiber head simultaneously, is also done circumference ± 180 ° motion along with the rotation of tubular shaft around its axis on the one hand along with link rod plate is done translation, has realized the polar coordinates location.Translation control motor B and reduction gearing mechanism as translation are bearing on the hold-down support (15), and this hold-down support and tubular shaft upper surface are connected.
Among Fig. 2, (16) are attachment screw, pin, and (17) are the bearing that floats, and (18) are the pivot pin screw, and (19) are extension spring, and (20) are worm screw, and (21) are worm gear.
In the present embodiment, revolution control motor A (1) drives tubular shaft by speed reduction unit and does ± 180 ° of scopes rotations.There is a big step upper end of tubular shaft (3), one end of hold-down support (15) is fixed on this step end face by attachment screw, pin (16), on hold-down support, a unsteady bearing is installed by a pivot pin screw (18), should float bearing can be with respect to the rotation of hold-down support do around the pivot pin screw, between hold-down support and unsteady bearing, be connected with an extension spring (Ben Tumo expression), in order to eliminate flank in the worm and gear transmission to the crack.Translation stepper motor B (6) is installed on the bearing that floats, a worm screw (20) has been rigidly connected on its output shaft, on hold-down support, be provided with screw rod (8), worm gear (21) promptly is packed on the screw shaft, the engagement of worm and gear is rotated screw rod (8), the nut that is mated (9) is connected on the parallel-plate (10), one end of extension spring (19) is connected and is fixed on the bearing, the other end is connected on the parallel-plate, in order to eliminate the thread pitch in the bolt and nut transmission, when translation stepper motor B rotates, by worm and gear and screw-and-nut mechanism, promotion has the parallel-crank mechanism swing of flexible hinge, thereby makes optical fiber head do the radial translation motion.
The course of work of present embodiment is, according to by observation district star entablement mark, provide instruction by computing machine, respectively control step motor A and B, tubular shaft and parallel-crank mechanism are moved by command request, thereby optical fiber head is positioned on the respective coordinates position of tested star picture exactly.
Claims (4)
1. fiber orientation cell arrangement that is used for astronomical solar spectral telescope, include gyration mechanism and radial translation motion, both constitute the polar coordinates motion, described gyration mechanism comprises revolution control motor, reduction gearing mechanism and a tubular shaft, revolution control motor drives the rotation that tubular shaft is made ± 180 ° of scopes through reduction gearing mechanism, this tubular shaft is bearing on the telescope focal plane plate, and its axis is vertical with focal plane plate; Described radial translation motion includes translation control motor and a parallelogram parallel moving mechanism, described parallelogram parallel moving mechanism includes two blocks of parallel-plates and a link rod plate up and down, an end of two blocks of parallel-plates is hinged on the upper surface of tubular shaft respectively by hinge up and down, the other end of two parallel-plates is hinged on the link rod plate respectively by hinge, described translation control motor is fixedly mounted on the upper surface of tubular shaft, and be connected with reduction gearing mechanism, this reduction gearing mechanism includes and converts straight-line throw-over gear to rotatablely moving, and its last output is fixed on tetragonal parallel-plate up and down of described flat shape or the link rod plate; Described link rod plate is provided with the hole that is used to install the optical fiber head, this axially bored line and tubular shaft parallel axes, and optical fiber head is being fixed in this hole, and optical fiber is drawn from the tubular shaft endoporus.
2. fiber orientation cell arrangement as claimed in claim 1 is characterized in that the hinge that uses in the described flat shape quadrilateral parallel moving mechanism is a flexible hinge.
3. fiber orientation cell arrangement as claimed in claim 1 or 2 is characterized in that can using in the described parallelogram parallel moving mechanism universal rotary hinge to replace flexible hinge.
4. fiber orientation cell arrangement as claimed in claim 1 is characterized in that being provided with in the described reduction gearing mechanism elimination clearance mechanism.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103202A CN1095085C (en) | 1997-03-11 | 1997-03-11 | Fibre-optical unit positioning apparatus for astronomy spectrotelescope |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN97103202A CN1095085C (en) | 1997-03-11 | 1997-03-11 | Fibre-optical unit positioning apparatus for astronomy spectrotelescope |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1193122A CN1193122A (en) | 1998-09-16 |
| CN1095085C true CN1095085C (en) | 2002-11-27 |
Family
ID=5166567
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN97103202A Expired - Fee Related CN1095085C (en) | 1997-03-11 | 1997-03-11 | Fibre-optical unit positioning apparatus for astronomy spectrotelescope |
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| Country | Link |
|---|---|
| CN (1) | CN1095085C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022106983A2 (en) | 2020-11-20 | 2022-05-27 | Mps Micro Precision Systems Ag | Fiber positioning unit for telescopes |
Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| EP2565694A4 (en) | 2010-04-30 | 2017-04-12 | AVS Added Value Industrial Engineering Solutions, S.L. | Optical-fiber positioning device for multi-object spectrometers |
| CN102589607B (en) * | 2012-03-14 | 2014-05-28 | 中国科学院国家天文台南京天文光学技术研究所 | Split large screen-based multi-target optical fiber positioning simulation calibration method and equipment |
| CN108845415B (en) * | 2018-04-03 | 2021-02-26 | 华东交通大学 | Coarse common-phase adjustment method and detection system applied to splicing mirror |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084814A (en) * | 1976-10-12 | 1978-04-18 | Robert Boggild | Gymnastic pole and mount therefor |
| US4322131A (en) * | 1979-11-01 | 1982-03-30 | The Perkin-Elmer Corporation | Image transfer device using mirror moving on spherical focal surface |
| US4923276A (en) * | 1989-02-13 | 1990-05-08 | Teledyne Industries, Inc. | Tapered optical fiber telescope, tracking system apparatus and method incorporating tapered optical fiber telescopes |
| US5123723A (en) * | 1990-04-18 | 1992-06-23 | The United States Of America As Represented By The Secretary Of The Air Force | Ultra-high vacuum telescoping fiber optic feedthrough apparatus and method |
-
1997
- 1997-03-11 CN CN97103202A patent/CN1095085C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4084814A (en) * | 1976-10-12 | 1978-04-18 | Robert Boggild | Gymnastic pole and mount therefor |
| US4322131A (en) * | 1979-11-01 | 1982-03-30 | The Perkin-Elmer Corporation | Image transfer device using mirror moving on spherical focal surface |
| US4923276A (en) * | 1989-02-13 | 1990-05-08 | Teledyne Industries, Inc. | Tapered optical fiber telescope, tracking system apparatus and method incorporating tapered optical fiber telescopes |
| US5123723A (en) * | 1990-04-18 | 1992-06-23 | The United States Of America As Represented By The Secretary Of The Air Force | Ultra-high vacuum telescoping fiber optic feedthrough apparatus and method |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022106983A2 (en) | 2020-11-20 | 2022-05-27 | Mps Micro Precision Systems Ag | Fiber positioning unit for telescopes |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1193122A (en) | 1998-09-16 |
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