SU1246041A1 - Telescope - Google Patents

Abstract

The invention relates to a measurement technique and makes it possible to increase the accuracy of determining the direction of sight at an object by improving the speed of optical communications. Dp this in the focal plane of the lens 30 of each autocollimator installed an additional photodetector 33, made in the form of two parallel lines of position-sensitive photoelectric cells, with light filters 34, 35 in front of him. Mark 32 is made in the form of two transparent strokes arranged at an angle to each other and to the rulers of the corresponding photodetector against a dark background, which ensures uniform resolution in two directions and simplifies the calculation of coordinates. The transmission region of the light filters 34, 35 is associated with the transmission region of the optical filters 28 and 29, which are installed in the corresponding window of the collinear ray transfer device of each autocollimator. After an image has been obtained, two independent images are formed on each of the two channels of the collinear ray transfer device on the photodetector 33, separated by spectral composition. 6 Il. (L with Yu 4 Od, Fig. 2

Description

one

The invention relates to the field of measurement technology, primarily to astronomical devices for determining the angular positions of the sighting axes of large-sized tracking devices — telescope tubes mounted on multi-axis mounts.

The aim of the invention is to increase the accuracy of determining the direction

sighting on an object by raising O with reflective edges 15 and 16, reflecting

optical communication speeds.

FIG. 1 shows the device, a general view; in fig. 2 is an optical diagram of a collinear beam transfer device and an autocollimator in FIG. 3; a diagram of a photodetector; Fig, 4 is a diagram of the brand; in fig. 5 is a schematic layout of the mark relative to the lines of the photo-receiver; in fig. 6 is a reference scheme on the photocurrent ruler.

The device contains installed on the foundation 1 mount with base 2, first axis 3, second axis 4, sensor 5 of the rotation angle n: the first axis, sensor 6 of the rotation angle of the second axis, each of which consists of a rotor 7. connected to a corresponding axis: 3-4, and the stator 8. The stator of the sensor 5 of the first axis is fixed on the base 2, the stator of the sensor 6 of the second axis is on the first axis 3 preceding it 3. The pipe 9 is fixed on the second axis 4 with a lens 10 and coordinator P located in the focal plane . The device is also equipped with prisms 12, and 13, each of which is made with flat reflected faces (a, g, c) and connected to the sensor rotor of the corresponding axis so that one of its faces is perpendicular to the axis of rotation of this axis,

Another face & perpendicular to the axis of rotation of the subsequent axis (dp of the last axis is the face perpendicular to the sighting axis of the pipe) 5 a third face parallel to the axis of rotation of the subsequent axis, the stator of the sensor 8 of the second axis fixed on the first axis 3 has a flat reflecting face 14 rigidly the associated and parallel faces from the prism 12 of the first axis, the Q edge of the prism 13 and the edge 6 of the prism 12, the edge of the prism 12 and the reflecting edge 14, the edge of the 1X 13 and the coordinator 1 are optically connected.

In addition, the stator of the sensor 5, mounted on the base 2, is provided with a flat ejection face 15, rigidly

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 associated with it and parallel to the first

axis 3, the edge and the foundation 1 (edge 16) being optically coupled. The flat reflecting face of the base element 12 is optically coupled to the reflecting face 17 located on the foundation parallel to the face o. . Optical connections between the face a of the prism 12 and the reflecting face 17,

the prism 12 and the reflective edge 14, the reflective edge & the prism 12 and the reflecting face and the prism 13 is made in the form of devices

18-21 collinear transfer and autocollimators 22-25, and in all cases, the autocollimator's sighting beam is divided by a collinear transfer device into two collinear beams,

0 perpendicular to the associated reflective edges.

The optical connection between the coordinator I1 and the face E of the base element 13 is made in the form of a lens 26

5 with the mark placed at its main point mounted on the tube 9 so that the mark is at half the focal length of the lens 26 and includes: a collinear transfer device 27 located at the tube between the lens of the tube 10 and the lens 26. To prevent overlapping

autocollimation images from optically bound faces to each

5-input window devices 18-21 collinear transfer (Fig. 2) installed spectral filters 28 and 29 C. non-intersecting spectral transmission regions, and in autocollimators 22-25, consisting of lens 30, beam-splitting cube 31, marks 32, photodetectors 33 and light filters 34 and 35 are installed, and the photodetector consists of two parallel lines of position-sensitive photoelectric cells 36 and 37 with light filters 34 and 35 (Fig. 3), and the transmission region of light filters 34 and 35 mounted in front of the photodetectors,

50 is associated with the transmission region of the light filters 28 and 29, installed in the corresponding window of the collinear ray transfer device (GFD) of each autocollimator. 55 Ma.Rka 32 (Fig. 2 and 4) is made in the VNP, e of two transparent strokes on a dark background, located at an angle to each other. To ensure equal.

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dimensional resolution in two directions and simplify the calculation of coordinates, the mark is made in the form of two transparent strokes located at an angle of 90 ° to each other, and is positioned so that the bisector of the angle of the autocollimation image of this brand makes an angle of 90 ° with the photodetectors 36 and 37 (Fig. 5). After obtaining autocollimation images for each of the two SAR channels, two independent images are formed on the photodetector, separated by the spectral composition A, D, (Fig. 6) Then in the X, Y coordinate system associated with the plane Strongly photodetector (. FIG 6) for image coordinate mark center lines of intersection true:

V vj

for the first image of y and;

for the second image

v - Y - Y 2

The mutual angular position of the surfaces is determined by the difference of the coordinates, nat: du yy, yx xxx

The device works as follows.

To determine the angular position of the telescope tube sighting axis, at each fixed point in time, 5 angle points (& Q) are taken from the rotation angle sensors of axes 5 and 6. In addition, using the optical connections of the faces of the base element 12 and the reflecting face 17, the reflecting face 15 and the reflecting face 16, the face from the prism 12 and the reflecting face 14, the face 8 of the prism 12 and the faces of the prism 13, determine their relative angular positions — angles (c, | 9,), (), (), (o) o Using the optical coupling of the & prism 13 with coordinator 11, determine the angular position ()

4604)

the sighting axis of the pipe 9 relative to nor-. Mali to the edge. Apply the known expressions for the C2J coordinate transformation, determine the angular position 5 of the sighting axis,

The two-axis mode of operation is explained in FIG. 5, where the position of the image of the autocollimation brand is given

to on the position sensitive receiver lines. Samples y (y) and V.L) are obtained by processing an electrical signal from the lines of photodetectors.

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Claims (1)

Invention Formula A telescope containing the telescope tube sighting axis and optical reflectors connected via collinear beam transfer devices with two entrance windows and autocollimators including a photodetector and an autocollimation mark that differs 5 with accuracy of determining the angular position of the sighting axis of the tube by improving the speed of optical communications, the device is equipped with additional 0 photodetectors, each of which is installed in the focal plane of the lens of each autocollimator, and light filters with non-intersecting light transmission areas installed in each input window of the collinear beam transfer device, each of the photoreceivers made in two parallel lines of position-sensitive photo- elements with light filters installed in front of these rulers, with a transmission area adjoining the transmission area of the optical filter in the corresponding window of the collinear node transfer of rays, and the mark of each of the autocollimators is made in the view of two transparent strokes on a dark background, arranged at an angle to each other and to the rulers of the corresponding photodetector, and  I I n IS I I 23 f; fccr and h TT, p. / B1 and N / Fig t FiL FIG. five Compiled by Yu. Kostyuchenko. Editor N. Egorova. Tehred I.Popovich Proofreader A. Zimokosov Order 3996/39 Circulation 501. Subscription VNIIPI USSR State Committee .on matters of inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab 4/5 Production and printing company, Uzhgorod, st. Project, 4