SU1116296A1 - Device for measuring increment of angles beteween surfaces - Google Patents

Abstract

A DEVICE FOR MEASURING ANGLES GRAINING FOR SURFACE GUIDE, containing two basic elements, a rod hinged on one of the basic elements, a slider mounted on the rod with the possibility of moving along it and interconnected by a hinge with the second basic element, an angular scale and a pointer. placed in the center of the scale, from the fact that, in order to improve the measurement accuracy, it is equipped with a second stem, equal in length to the first, one end of which is pivotally fixed on the first base element, with a second slider mounted on the second stem with the possibility of moving along it , two strips of length equal to the distance between the first and second rods, the first plank pivotally connected to the free ends of the rods, and the second pivotally to the sliders, the angular scale is rigidly fixed on the second element with the hinge on the axis Connecting the second strap with creep (A prefecture first rod, and a pointer fixedly secured to the second plate.

Description

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This invention relates to a measurement technique. The closest technical solution to the invention is a device for measuring the increments of the angles between the surfaces, containing two basic elements, a rod located on a hinge on one of the basic elements, a slider mounted on a rod that can be moved along it and interconnected by a hinge the second base element, the carbon scale and the pointer, located in the center of the L1 scale. However, the known device is characterized by insufficient measurement accuracy due to the need for preliminary calibration of the angular scale by exemplary means. Since the calibration conditions always differ from real measurements, the angle increments are measured with errors. In addition, when measuring the increments of angles in the region of zero, the axes of the hinges are located on the same straight line, which leads to uncertainty in the position of the ruler and vernier pointer, which also introduces an inaccuracy in the measurement. The aim of the invention is to improve the measurement accuracy. This goal is achieved in that the device for measuring the increments of the angles between the surfaces, contains two basic elements, a rod located on a hinge on one of the basic elements, a slider mounted on the rod with the possibility of moving along it and interconnected by a hinge with the second basic an element, an angular scale and a pointer, placed in the center of the scale, is provided with a second stem, equal in length to the first one, one end of which is pivotally fixed on the first base element, with a second slider mounted on the second stem with the ability to move along it, two strips of length equal to the distance between the first and second rods, the first strap is pivotally connected to the free ends of the rods, and the second is pivotally with sliders, the angular 62 scale is rigidly fixed on the second base element with the center on the hinge axis; the second bar with the slide of the first rod, and the pointer is rigidly fixed on the second bar. The drawing shows a device for measuring the increments of the angles between the surfaces, a general view. The device contains two base elements 1 and 2 with clamps 3 and 4, a rod 5 mounted on the hinge 6 on the base element 1, a slider 7 mounted on the rod 5 to move along it and interconnected with the base element 2 hinge 8, the second rod 9 The Length is equal to the rod 5, one end of which is fixed on the base element 1 on the hinge 10, the second slider 11 mounted on the second rod 9 with the possibility of moving along it, two strips 12 and 13 with a length equal to the distance between the rods 5 and 9, the strap 13 is connected by the hinges 14 and 15 with the rods 5 and 9, bar 12 is connected by hinges 8 and 16 with sliders 7 and 11. The corner scale 17 is rigidly fixed on the base element 2 with the center on the axis of the hinge 8, and the pointer 18 is rigidly fixed on the bracket 12 and is located in the center of the scale 17. The device works as follows. The device is fastened with a clamp 3 on a stationary controlled surface 19. Then, tube 4 is attached to the movable surface 20 so that the parent axes of the rods 5 and 9 are in planes perpendicular to the rotation of the movable surface 20, and moving surfaces 19 and 20 provided free passage of Lanka 12 and the slide 7 of the rod 1. Count down on a scale of 17 (angle sJ.). The surface 20 is displaced by an angle (2. The increment of the angle AoL is defined as the averaging ratio between the second and first counts, i.e. A. d oCg. The proposed device allows switching off the measurement error.

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Claims (1)

DEVICE FOR MEASURING ANGLES INCREASE BETWEEN SURFACES, containing two basic elements, a rod located, hinged on one of the basic elements, a slider mounted on the rod with the ability to move along it and interconnected by a hinge with the second basic element, an angular scale and a pointer placed in the center of the scale, which, in order to increase the accuracy of measurements, it is equipped with a second rod, equal in length to the first, one end of which is pivotally mounted on the first base element, the second slider, is installed mounted on the second rod with the possibility of moving along it, with two strips of length equal to the distance between the first and second rods, the first bar is pivotally connected to the free ends of the rods, and the second is pivotally with sliders, the angular scale is rigidly fixed to the second base element centered on the axis of the hinge , § connecting the second bar with the slider of the first rod, and the pointer is rigidly fixed to the second bar. ¹ 1 16296