SU1335805A1 - System for determining error of telescope sighting position - Google Patents

Abstract

The invention can be used to verify the importance of sighting large telescopes in a given direction. Peleu izob (L WU2.f

Description

Retention is the expansion of operational capabilities by determining the error of the direction of sight of the telescope. The arbitrary position of the tube Rejects the monitored pipe 22 of the telescope in any given direction. In the field of view, a telescope tube is designed to emit a collimator connected to bracket 1, which in turn is fixed to the telescope tube using a mirror-prism collinear transfer unit 16. The spatial position of the optical axis of the collimator, made according to the biochannel scheme, is controlled with the help of rotation angle sensors 6, 7, fastened to the carrier shaft 5 and oriented in two mutually perpendicular directions, and with the help of a coordinator determining the image shift value of the light point 1

The invention relates to a measurement technique and can be used to verify the accuracy of sighting of large telescopes in a given direction.

The purpose of the invention is to improve the operational capabilities by determining the error in the direction of the sighting of the telescope for turning the position of the pipe.

Figure 1 is a schematic diagram of the system; figure 2 - mirror-prism nodes and their relative position relative to the telescope pipe

The system contains a bracket 1 (FIG. 1) for connecting to the tube of a controlled telescope, a collimator lens 2 with a mark 3 applied at its main point, a base mirror 4, a carrier shaft 5, two sensors 6 and 7 of the angle of rotation, each of which has a shaft 8 and 9 of rotation, two mirrors 10 and 11p, each of which is mounted on the shaft of rotation of one of the sensors, two corner mirrors formed by mirrors 12 and 14, 13 and 15, each

ki collimator in the field of view of the telescope tube. The spatial position of the G-angle is controlled relatively; 1 fixedly fixed basonog 4 (fixed coordinate system) with the help of a theodolite 21 with an autocollimation eye, the radiation of which through four mirrored prism nodes connected in two controlled planes, successively directed to a mirror mounted on the rotation shaft of each sensor and to an angular mirror connected to the sensor housing. According to the measured angles of the sensors, the amount of displacement of the light mark in o: n the angles of view of the telescope and the mirrors turn fastened with sensors, calculating a direction and exemplary (determined angular deviation from non | axis of the sighting telescope, 2 yl.

two corner mirrors are fastened to the case of one of the two sensors, five mirror-prism nodes 16-20 and a theodolite 21 with an autocollimation ocular. In addition, a tube 22 of a controlled telescope and an auxiliary mirror 23s mounted on the shaft 5 at an angle of 45 to its

axis. I

The collimator is formed by a lens 2 with an illuminated mark 3 and a mirror 12 located from the mark on

distance f / 2 and oriented perpendicular to the axis of the lens, where f is the focal length of the lens 2 Mark is illuminated by a radiation source (not shown),

The sensor body 6 is rigidly fixed to the bracket 1, the axis of the shaft 8 of this sensor is parallel to the axis of rotation of the shaft 5 and the mirror 12 is kinematically connected to it parallel to

the axis of the shaft 8 of the sensor, and the mirror 14 perpendicular to it. The body of the other sensor 7 is connected to the shaft 5 and is oriented with its shaft 9 perpendicular to the shaft 5, the Mirror 13 is located

parallel to the axis of the shaft 9, and the mirror 15 perpendicular to it.

The base mirror 4, theodolite 21 and mirror-prism nodes 17-20 are located on the base (not shown). The mirror-prism assembly 16 is connected to the bracket 1 and provides an optical link between the collimator and the tube of the telescope being monitored.

The mirror prism assemblies 17 and 18 are hinged between themselves and provide the optical connection of theodolite 21 to the mirrors Yu and 15, and the mirror prism nodes 19 and 20 provide the optical connection of the theodolite to the mirror 11. The optical linkage of theodolite to the mirrors 13 and 14 is provided with an auxiliary mirror 23 and mirror-prism assemblies 17 and 18.

The system works as follows.

Before working with high accuracy, the angles of non-perpendicularity between the mirrors 13 and 15 of one corner mirror and the non-perpendicular angle between mirrors 12 and 14 of another corner mirror are measured. Then the bracket 1 is attached to the pipe 22

Litas, which determine the angle and the non-parallelism between the mirrors 10

a rotated telescope so that in the price-30 from them of an autocollimation image the floor of the telescope tube is visible and it reads along the vertical with mark 3 of the collimator. Then, the noodus and horizontal limbs of the telescope's telomodule are rotated to any given arbitrary position.

The system sets, for a controllable 35 and 15, in the measuring plane, a standard sight, parallel to the plane of the telescope, parallel to the plane of the mirror 13. In the direction. The angular deviation of the D between the model direction and the direction of the telescope's sight is the error of the sight of the telescope.

The sensor 7 measures the angle oij between the mirrors 11 and 13 (Fig. 1), and the sensor 6 measures the angle j between the flat mirrors 10 and 12.

leskopa.

To control the angles of deviation of a given position of the tube from the model one, the position of the optical axis of the collimator is determined by the angle of rotation sensors and the displacement of its image (X, Y) in the focal plane of the telescope by the coordinator. Dp of this shaft 5 with the sensor 7 is turned (for example, manually) to a position at which the flat mirror 15 becomes vertical. The axis of the shaft 9 of the sensor 7 in this position of the telescope tube is rotated (for example, manually) so that the mirror 11 is vertical. The theodolite 21 through the nodes 19 and 20 is directed to the mirror 11 to obtain autocollimation

images from this mirror and from its vertical circle take samples, which determine the angle a / of the deviation of the mirror 11 from the vertical plane. Through nodes 17 and 18, the theodolite is aimed at the mirror 15 to receive an autocollimation image from it and take readings on the vertical and horizontal circles, then transfer the theodolite 21 to

five

mirror 4 to obtain an autocollimation image and take a reading on the horizontal limb of the theodolite.

Using the difference in readings, calculate the angles Y | , p., turning the mirror 15 relative to the mirror 4 in the horizontal and vertical planes. After that, the theodolite 21 through mirror-prism nodes 17 and 18 is transferred to mirrors 13 and 14 to obtain autocollimation images, initially from mirror 13, and then from mirror 14, each time taking measurements on the vertical and horizontal theodolite limbs. Based on the difference of the readings obtained, the angles Jj are calculated; the non-parallelism of mirrors 13 and 14. Translating the theodolite 21 through nodes 17 and 18 into mirrors 10 to obtain

0

Litas, which determine the angle and the non-parallelism between the mirrors 10

from them autocollimation image and take readings on the vertical and horizontal limbs

and 15 in the measuring plane parallel to the plane of the mirror 13. According to

The sensor 7 measures the angle oij between the mirrors 11 and 13 (Fig. 1), and the sensor 6 measures the angle j between the flat mirrors 10 and 12.

The samples are co-ordinated by the coordinate coordinates of the image of the collimator mark (X, Y) in the field of view of the telescope.

The telescope sensors, for example, the limbs for a given position of the pipe, take the angles of rotation of its axes f ,, g, E3 to determine the error of the angle of deflection of the telescope from the following relationship:

 J. A Ch

where u

-J - p- -, | - - | V / 3s- / i X cos (yi, - (f, + U, -G) - sincCj, x - fr. Sin / 3, + {e, + oi, -b +, - f-) cosp, -J, .sinp, - (, + y, -r) Cosci, .sLn / 5, + + sin od j- sin 8:

G is the angle between the lines, the direction of the telescope and the X axis in the horizon, that is, the binding of the telescope in azimuth; 2.1 counts by limb

or digital telescope sensors; f is the focal distance

telescope tube lens,

Claims (1)

Invention Formula A system for determining the telescope sighting direction error comprising a base, a bracket and a collimator connected to the bracket and made of a lens and mark, characterized in that, in order to enhance operational capabilities by determining the telescope sighting direction error for an arbitrary position of the pipe, it is equipped with a mirror and a theodolite with an autocollimation oculator, mounted on the base, five mirror-prize 6 —fW I ll. - Hi Is Go 15 -, . , / Editor N. Tupitsa (rig 2 17 21 Compiled by M. Soloukhin Tehred M. Dg-shyk Proofreader L. Pipenko The nodes of the collinear skew rays, the carrier shaft and two sensors of the rotation angle of the collimator, each of which includes the body, the rotation shaft mounted in the housing, the mirror, is mounted (ringed on the shaft parallel to its axis, and the angle mirror, is mounted (on the housing and oriented)) so that one face one of the sensors is connected by its body to the carrier and is oriented so that the axis of its shaft is perpendicular to the axis of rotation of the carrier shaft, and the second sensor is connected by its body to the bracket, kinematically connected to the carrier the hall and the axis of its shaft are parallel to the axis of rotation of the carrier shaft, the collimator mark is applied to the surface of the object P5ba at its main point and is located at a distance equal to half the focal length from the edge of the second angle mirror the sensor, one of the mirror-prism nodes is connected to the bracket and (is oriented perpendicular to the optical axis of the collimator, and the other mirror-prismc node is mounted on the basis of pairs of the corresponding sensor and the telescope in pairs Order 4039/34 676Subscription VNIIGSh of the USSR State Committee for inventions and discoveries 113035, Moscow, Zh-35, Raushsk nab., 4/5 Production and printing company, Uzhgorod, Proektna str., 4