RU714905C - Light-beam orienting device - Google Patents

Description

The invention relates to orientation systems.

A spatial orientation device using a laser beam as a reference line is known.

The device provides acceptable accuracy of alignment and centering of objects using standard industrial designs of solar cells. A special laser system is used for this.

The device is made in the form of a lattice of photocells detecting the deviation of the laser beam from the reference point of the lattice. The optical system of the device forms a specific laser beam, the cross section of which represents four contrasting light segments separated by a zero-intensity zone.

Also known is a light beam orientation device comprising wide-angle optoelectronic sensors with photodetectors installed at the vertices of a polygon, and a digital computer with

input and output device. including an analog-to-code converter. . The disadvantage of these devices is the ability to determine only deviations relative to the light beam and the small dynamic range of the device. An object of the invention is to expand the functionality of a device.

The goal is achieved. what about a well-known device containing wide-angle optical-electronic sensors with photodetectors installed at the vertices of a polygon, a digital computer with an input-output device including an analog-to-code converter, one of the optical-electronic sensors is installed in the geometric center of the polygon, with each optical -electronic sensor is equipped with a drive, on the axis of rotation of which a sine-cosine transformer is installed, the output windings of which are connected to the analog-code converter

digital input / output devices,

Figure 1 shows the device; Figure 2 is a diagram of scanning sensors.

Each of the optoelectronic sensors is rotatable within a solid angle. Each sensor 1-4 or 5 is connected to a sine-cosine rotary transformer 6-9 or 10 by mechanical communication and electrical communication with analog-to-code converters 11-15 of digital calculator 16.

The following system sets the learning position in space by determining the coordinates X, Y of the point of intersection of the ray with the XOY plane and the directional coefficients {mnp} of the direction vector parallel to the ray. When a beam enters the field of view of the sensor, a signal appears at its output due to the molecular and aerosol distance of the medium. Thus, a line of sight of the beam is obtained from the location of the sensor on the XOY plane. The line of sight of the beam in the XY on system is defined by a point on the XOY plane in which the receiver is located, and by a guiding vector Li7v parallel to the center line of sight of the photodetector. Information about the directing coefficients aie is used to determine the location of the beam in space from the photodetector. Big, its directing vector at the moment the beam enters the field of view of the receiver. The guide coefficient c is set to 1. The working area of the tracking device is the part of the space scanned by all photodetectors. Scanning is carried out by rotating the photodetector around an axis in the direction indicated by arrow 21, with the guide vector L parallel to the center line of view of the photodetector describing the surface of a straight circular cone. When a beam passes through the working area of a tracking device, the beam enters the field of view of each photodetector at least once. A restriction is placed on the location of the beam; it must go through the work area and should not be parallel to the XOY plane,

From the sine-cosine rotary transformer 6-9 or 10, signals proportional to sin McosyJi are fed to the converters 11-15.

The orientation device according to the invention can operate on a laser beam, as well as for determining the position of the laser. Compared with the known, the proposed device provides all the data in numerical terms, which allow you to fully determine the position of the beam.

AND

21

fut.t