SU1525435A1 - Optical goniometer - Google Patents

Abstract

The invention relates to a measurement technique and can be used in technical crystallography to determine the spherical coordinates of crystal points, the relative position of its edges, the angles between them and the faces of the crystal. The aim of the invention is to increase the operational convenience and performance of measurements by directly counting the measured parameters. In the measurement, the crystal 7 is fixed in the crystal holder 6. Move the collimators 5 and 10 along the tripods 3.8 and 14, with the tripods of the tripods 3 and 8 being relative to the rack 2 and the tripod 14 moving in the guide 12 to such a position that the combination of the rays passing through collimators 5 and 10 with normal to the corresponding crystal edges 7. Collimators 5 and 10 are fixed in this position and the angles between the edges and edges of the crystal 7 and the length of its edges are determined using scales 4.9 and 15. 1 il.

Description

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The invention relates to a measurement technique and can be used in technical crystallography to determine the spherical coordinates of crystal points, the relative position of its edges, the angles between them and the faces of the crystal.

The aim of the invention is to increase operational convenience and measurement performance.

The drawing shows a diagram of an optical goniometer.

The optical goniometer contains a table 1 a rack 2 fixed on it, a semi-circular ctiva 3 with an angular scale 4, a collimator 5 mounted on a tripod 3 with the possibility of moving along it, a crystal holder 6 of the measured crystal 7, an additional semi-circular stand 8 with an angular scale 9 and a collimator 10 mounted on a tripod 8 with the possibility of moving along it, a slider 1 1 with a radius 12, mounted on the collimator 10 using an axis 13, and an annular tripod 14 with an angular scale 15 located in the directional 12 and bonded to a collimator 5 with the aid of a spherical joint 16.

The optical goniometer works in the following way.

Crystal 7 is fixed in the crystal holder 6. Interleave the collimators 5 and 10 on tripods 3, 8 and 14 with the rotation of the column 3 and 8 relative to the rack 2 and the movement of the tripod 14 in the direction of the 12

the position at which the combination of the rays passing through the collimators 5 and 10 with the normal to the corresponding facets of the crystal 7 is achieved. The collimators 5 and 10 are fixed in this position and using the scales 4, 9 and 15 determine the angles between the faces and crystal edges 7 and the length of its edges.

Claims (1)

Invention Formula An optical goniometer containing a table, a stand mounted on it, mounted on a bed can be rotated relative to the stand axis of a semi-circular tripod with an angular scale, a collimator mounted on a stand can be moved along it, and a crystal holder mounted on the free end of the stand, that, in order to increase operational convenience and measurement performance, it is equipped with an additional semi-ring stand with an angular scale and a collimator identical to the main stand and a collimator mounted on the table with the possibility of rotation relative to the axis of the stand, a slider with a radius guide fixed on the additional collimator using an axis passing through the center of the sphere formed by the semi-ring tripods and the ring stand with an angular scale located in the slide guide and hinged associated with the main collimator.