SU853381A1

SU853381A1 - Device for measuring object rotation angles

Info

Publication number: SU853381A1
Application number: SU792836649A
Authority: SU
Inventors: Василий Иванович Вустенко; Юрий Михайлович Голубовский
Original assignee: Предприятие П/Я Р-6681
Priority date: 1979-11-02
Filing date: 1979-11-02
Publication date: 1981-08-07

Description

1one

Изобретение относитс к измерительной технике и предназначено дл измерени углов поворота объекта.The invention relates to a measurement technique and is intended to measure the angles of rotation of an object.

Известно устройство дл дистанционного нзмеренк углов поворота объекта , содержащее автоколлиматор и отражатель (зеркала, призма), укрепленный на объекте 1.A device for remote measuring angles of rotation of an object, containing an autocollimator and a reflector (mirrors, prism), mounted on the object 1 is known.

Недостатком устройства вл етс малый диапазон измер е1«1х углов, так как при незначительных поворотах удаленного объекта с отражателем отраженный световой поток -не попадает в автоколлиматор.The disadvantage of the device is a small measuring range of e1 ' 1x angles, since with slight bends of a distant object with a reflector, the reflected light flux does not enter the autocollimator.

Наиболее близким к изобретению техническим решением вл етс устройство дл измерени углов поворота объекта, содержащее источник излучени И последовательно расположенные по фду его лучей коллиматор с мар кой , отражательную призму, телескопическую систему, жестко св занную с призмой и имекщую увеличение, близкое к единице, и зрительную трубу 2.The closest technical solution to the invention is a device for measuring the angles of rotation of an object, containing a radiation source AND a collimator with a mark, a reflective prism, a telescopic system rigidly connected to a prism and an increase close to one, and successively located along its beam. telescope 2.

Недостатками такого устройства вл ютс снижение точности измерени при увеличении углов поворота объекта и небольшой дигцтазон измер еMEJX .углов, что объ сн етс нарушением линейной зависимости между углом поворота объекта и углом расхождени выход щих из отражательной призлйл пучков света.The disadvantages of such a device are reduced measurement accuracy with increasing angles of rotation of the object and a small digtstazon measuring eMEJX angles, which is explained by the violation of the linear relationship between the angle of rotation of the object and the angle of divergence of light beams emerging from the reflective ground.

Цель нзобретёни - повышение точности измерений и расширение диапазона измер емых углов.The goal of the acquisition is to improve the measurement accuracy and expand the range of measured angles.

Это достигаетс тем, что устройство снабжено компенсатором, выпол10 ненным в виде второй телескопической системы и размещенным по ходу лучей между первой телескопической системой и зрительной трубой таким образом , что общее увеличение первой This is achieved by the fact that the device is equipped with a compensator, made in the form of a second telescopic system and placed along the rays between the first telescopic system and the telescope in such a way that the overall increase in the first

15 телескопической системы и компенсатора равно единиде.15 telescopic system and the compensator is equal to one.

На чертеже представлена принципиальна схема предлагаемого устройства.The drawing shows a schematic diagram of the proposed device.

Устройство содержит источник 1 света, коллиматор 2 с маркой 3,, отражательную призму 4, половина гипотенуз ной грани которой перекрыта The device contains a light source 1, a collimator 2 with a mark 3, a reflective prism 4, half of which has a hypotenuse side is blocked

25 жестко скрепленной с ним телескопической системой 5, зрительную трубу 6 и KONmeHcaTOp 7, выполненный в виде второй телескопической системы.25 a telescopic system 5 rigidly bonded with it, a telescope 6 and a KONmeHcaTOp 7, made in the form of a second telescopic system.

Claims

The device works as follows. The radiation of the light source 1, converted by the collimator 2 into a bunch of paraple-ray beams, is directed to the reflective prism 4 mounted on the object, passes through the open half of the hypotenuse edge with a reflective lens 4. After the reflection of the prism 4 is doubled, the luminous flux off the telescopic system 5 is at a small angle, which is associated with the rotation angle F of the object by the following ratio I 1-212 G 45 F where DG-G - 1 (the + sign corresponds to the case when G 7 1, the sign when Til), and falls on compensator 7 representing is a telescopic system identical to the telescopic system 5. The compensator 7, in turn, deflects the incident beam in accordance with the formula, but in the opposite side (it is assumed that the increase in the compensator along the light flux is 1 / G, i.e. telescopic systems 5 and 7 are oriented in opposite directions along the rays). By turning the compensator 7 around an axis parallel to the edge of the prism 4, it is possible to find a situation where the deflection angles of the beam of rays by both telescopic systems 5 and 7 (and hence their angles of rotation relative to the incident light flux) become equal observing the image of the mark in the eyepiece of the telescope. By calibrating the angles of rotation of the compensator 7 in terms of the angle of rotation of the prism 4 installed on the object, the angles of rotation of the object are determined. Apparatus of the Invention A device for measuring the angles of rotation of an object, comprising a radiation source and a collimator with a mark, a reflective prism, a telescopic system rigidly connected to a prism and having an increase close to one, and a telescope, characterized that, in order to improve the measurement accuracy and expand the range of measured angles, it is equipped with a compensator, made in the form of a second telescopic system and placed along the rays between the first telescope by the physical system and the telescope in such a way that the magnification of the first telescopic system and the compensator is equal to one. Sources of information taken into account when E1 {spertiz 1. Author's certificate of the USSR No. 183410, cl. G 01 S 1/00, 1966.

2.Pani nts K.A. An autocollimation method with a measurement range of angles that are significantly extended by reducing the measurement accuracy. - Optomechanical industry, 1966, No. 12, p. 35-36 (prototype).