SU1566870A1 - Method of determining mutual displacement object point - Google Patents

Abstract

The invention can be used in special engineering and geodetic works during installation and monitoring of equipment position. With an extension chain of functional capabilities by simultaneously determining the angular mixing of points n with a controlled test point t Two coaxial and oppositely directed initial beams are formed. The beams are returned to the first point with the help of retroreflectors 1 and, in the second and third points created by the ne. Measuring the magnitude of the shamed beams relative to the initial ones makes it possible to determine the transverse and angular spacings inn of the first point relative to the second and third. - 4 and so on.

Description

The invention relates to geodetic measurements and can be used in special engineering and geodetic works during installation and monitoring of equipment position.

The aim of the invention is to enhance the functionality by simultaneously determining the angular displacement of points.

FIG. 1 shows a transverse displacement measurement circuit; 2 is a diagram of measuring the angular displacement; FIG. 3 a scheme for measuring the joint longitudinal-angular displacement; in fig. C is an example of the implementation of the device that implements the proposed method.

The method is carried out as follows.

A reference line is formed to measure the point of the object under investigation relative to it. form by installing lights Srlschalov 1 and 2, turned by the entrance pupils one towards the other, on the second and third reference points.

On the object under study 3, the first controlled point is set (the source of collimated radiation and the initial collimated beam is directed to the first retroreflector 1. Measured at controlled point I is the X1 value of the displacement of the axis of the reflected beam relative to the original.

A second initial collimated beam, coaxial with the first, is formed, sent in the direction opposite to the first one, to the second retroreflector 2, measured at a controlled point the offset value X

Sl

with oo oo

the axis of the second reflected beam relative to the second source.

The distances 1 and lj from the object under study, on which the source is mounted, to the first and second light reflectors, respectively, are measured.

From FIG. 3 follows:

X, - 2nd - 2l, tpX, X {2 d + 21ztgc,

where d is the angle of the first point

with respect to the second and third is | $ her,

- i

/ l E l

° arCtR 2 (1, + lt);

O is the amount of mixing of the object under investigation relative to the reference line,

X, 1 + Hg1

2 (1, + 17)

40

The formation of the reference line, relative to which the displacement of the object under study is measured, is carried out using a device containing light reflectors 1 and 2, made, for example, in the form of a triple prism. The reflectors are mounted on stable bases 5 and one 35 to the other is deployed by the entrance pupils with the help of the sights 6.

On the object under study, a transceiver unit 7 is installed, containing a coaxially located laser 8, a telescopic system 9, and a modulator 10.

A beam splitter 11 is located on the optical axis of the laser illuminator to form two coaxial laer beams, which are directed in opposite directions, and two measuring photoelectric grades 12, optically coupled to the light divider.

The beam splitter can be made, for example, in the form of a rectangular prism, on the side of which a reflective coating is applied. Hypotenuse- - on the edge of the prism should be no less than the diameter of the laser beam. 55

The centers of the cathode faces of the beam-splitting prism and the energy centers of the measuring marks are located

, - 45

50

ten

| $

20

25

40

„35

, - 55

45

50

in the vertical plane, it is symmetrical with respect to the reference line defined by reference marks, and the distance between them should be no less than the diameter of the laser beam.

Structurally, the laser illuminator, beam splitter and measuring marks are made in the form of a single unit installed on the object under study with the possibility of rotation around the vertical axis by 180 °.

The output of each measuring mark is electrically connected with its electronic unit 13t for processing signals from the measuring mark. The output of each electronic unit is associated with the input unit} k of the conversion of information about the object being disconnected from the reference line and its length. The outputs of the distance information conversion units are connected to the adder 15.

Depending on the design iz. measuring mark electronic unit has a different set of nodes. Thus, when used as a measuring mark for a square photodiode, the electronic unit may have preamplifiers, signal subtraction circuits, and scale amplifiers (not shown).

The distance information conversion unit contains, for example, a scale amplifier with a controllable gain (not shown).

For operation of the device in mode. The indicator zero transceiver unit is mounted on the guides 16 and is associated with the sensor 17 linear displacements.

Claims (1)

The invention The method of determining the mutual displacement of points of objects, including the formation at the first point of the first source collimated beam, its direction to the second point and return to the first point, measuring the value of the returned beam relative to the original one and processing the results of measurements, in order to extend the functionality by simultaneously determining the angular displacement of points, the initial collimated beam is formed at the first point by the atori, coaxially and counter misdirected 515 The first one is sent to the third point, returned to the first point, and the displacement of the returned beam relative to the initial one is measured, and the values of the transverse L and angular ti displacements of the first point relative to the second and third are determined by the following dependencies: d. It 8+ IjXt L 2U i + 1 |) o / - arctg where 1 ,, 19 kt X 1 - X d 2 (1 g + 13) distances from the first point to the second and third, respectively; the values of the displacements corresponding to their returned beams with respect to the initial ones. five ; 5 j 2 5 / / 1 / 2 FIG. 2 5 1 Fig.Z to, Tg g s