SU1728645A1

SU1728645A1 - Method of measurement of linear dimensions and device to implement it

Info

Publication number: SU1728645A1
Application number: SU874367808A
Authority: SU
Inventors: Борис Никодаевич Иванов
Priority date: 1987-12-18
Filing date: 1987-12-18
Publication date: 1992-04-23

Description

51728645$51728645 $

ными на других част х второго и третьего вернуты относительно линии измерени н,аon the other parts of the second and third are returned relative to the measurement line n, and

шарниров, и дифференциальным винтом, один и тот же угол аhinges, and a differential screw, the same angle a

кинематически св занным с гайками, однаkinematically connected with nuts one

часть второго плоского шарнира соединена5I -Д|part of the second flat hinge is connected5I-D |

с подвижным звеном и одна часть третьего..with a moving link and one part of the third ..

плоского шарнира-с измерительной мерой где I - номинальна длина меры;flat hinge with measuring measure where I is the nominal length of the measure;

с возможностью ее поворота и фиксации вА I - отклонение меры от номинальногоwith the possibility of its rotation and fixation VA I - deviation of the measure from the nominal

плоскости, параллельной линии измерени , значени .the plane parallel to the measurement line, the value.

а измерительна и индикаторна - меры по-10and measuring and indicator - measures according to-10

Claims

Claim

1. A method of measuring linear dimensions, which consists in installing measuring and indicator measures in parallel planes, moving the measuring measure and judging by the results obtained on the measured value, characterized in that, in order to improve accuracy, measuring and indicator measures with a negative deviation the distance between the measuring elements is set in a plane parallel to the measuring line or passing through it, at an angle to the projection of this line onto the plane, measure the distance between eritelnymi elements in the direction of the measurement line and the measured value is determined.

2. A device for measuring linear dimensions, comprising a fixed link, a movable Link mounted on it with the ability to move, a measuring measure fixed on a fixed link, a lighter and a photodetector installed on the mobile link, an indicator measure and a reference unit, electrically connected to the photodetector, characterized in that, in order to improve accuracy, it is equipped with a first flat hinge connecting one end of the measuring measure with a fixed link, a second and third flat hinges connected by one parts with the other end of the measuring measure, the nuts located on other parts of the second and third hinges, and a differential screw kinematically connected to the nuts, one part of the second flat hinge is connected 5 to the movable link and one part of the third flat hinge is connected to the measuring measure with the possibility of its rotation and fixing in a plane parallel to the measurement line, and the measuring and ι indicator measures are returned to the same angle with respect to the measurement line and where I is the nominal length of the measure;

Δ I is the deviation of the measure from the nominal value.