SU1670701A1 - Scale for a measuring instrument - Google Patents

Abstract

The invention relates to a measurement technique and can be used in the calibration of measuring instruments with adjustable sensitivity. The aim of the invention is to expand the operational capabilities and improve the accuracy of the calibration of the instrument scale. For this, air is fed under constant pressure into the cone tube 1. Float 2 is in the air flow. The position of the float is determined by the air flow through the gap Z between the measuring nozzle 3 and the surface of the standard 4. The actual size of the part is determined by dividing the scale 5. Drum serves to deform the base of the scale in length. 2 Il.

Description

UNION OF SOVIET

SOCIALIST

REPUBLIC

.. „SU-.H, 1670701 A1 (51) 5 G 12 V 11/02

STATE COMMITTEE

BY INVENTIONS AND DISCOVERIES

AT SCST USSR

DESCRIPTION OF THE INVENTION

TO AUTHOR CERTIFICATE (21) 4407854/21 (22) 03.03.88 (46) 08/15/91. Bull.№30 (72) I.D. Salov, B. 14. Panov, V. A. Makarov and N. 14. Kondrashova (53) 53.087.6 (088.8) (56) Gorodetsky Yu. G. Design, calculation and operation of measuring instruments, Mashinostr., 1971, p. 177, fig. 109 (54) SCALE OF THE MEASURING INSTRUMENT (57) The invention relates to measuring equipment and can be used for taring measuring devices with adjustable sensitivity. The purpose of the invention is the expansion of operational capabilities and increase the accuracy of calibration of the scale of the device. To do this, air is supplied at a constant pressure to the cone tube 1. A float 2 is in the air stream. The position of the float is determined by the air flow through the gap Z between the measuring nozzle 3 and the surface of the standard 4. The actual size of the part is determined by scale divisions 5. Baoaben 6 serves to deform the base length scales

Z.p. f-ly, 1 ill.

167070Ί ΑΊ

The invention relates to measuring equipment and can be used 11 r and a r and r about a 11 and and zm ory ry gy x devices that have an adjustable sense of motor with I L K;

The purpose of the invention is the expansion of operational capabilities and improving the accuracy of calibration of the scale of the device.

The drawing shows a diagram of a pneumatic length meter with the proposed scale, the base of which is made of an elastic material, such as rubber.

The length meter consists of the following main units: conical tube 1. float 2, measuring equipment 3, standard 4 and scale 5 with drum 6.

Air -’s constant pressure HtehS- η · '·.' ι: ‘n cone tube 1. In the stream in: -, d, y>; .-> in the state of dynamic early weight, there is a float 2. Position ate’ ·. bottom; and is determined by the air flow 'wd-zd gap Ζ between the measuring r.o'i.i · -. ··' 3 and the surface of the reference 4. The actual dimension of the part determines; ' I am divided into bowls 5. Drum 6 is used to deform the base of the scale in length.

R npQ'i.i ~ rce of taring the long meter with the help of the-th 'л zlslap 4 set the measurement ·, the juors 7- ю n, and 7 m _N ! _<c in accordance with · pin g: p.p.-with them the permissible deviations on the detector For heme using the drum 6 deform (stretch) the base of the scale 5 so that the corresponding limits / permissible deviations of the part, scale divisions 5 coincide with the position of the float 5 when changing the clearance from Zmhh to Z _M aKc. In this case, all intermediate divisions of the scale will occupy the corresponding positions in proportion to the sensitivity of the length meter.

If the characteristic of the length meter is nonlinear, i.e. if the gap is not proportional to the position of the float, and the division intervals are uneven, then apply the basis of the variable cross-section scale, where Si ± S2. Moreover, the deformation of the scale base is proportional to the nonlinear change in the intervals of the scale divisions.

Claims (1)

Claim 20 1. The scale of the measuring device, containing the base with the marks applied on its surface with a rigidly fixed end, characterized in that, in order to expand the operational capabilities of 25 and increase the accuracy of taring, it is equipped with a mechanism for regulating its length, the base is made elastic, and the second end scale fixed in the mechanism for regulating its length. 30 2. The scale according to claim 1, with the reference to heme, that the basis of the scale is made with a sectional area variable in length Composed’1 In Sutormin Redde.gor M.1R - Trova Tehred M. Morgental Proofreader O. Kravtsova Order 2753 Circulation 289 Subscription W! Ί · ί / ίΠΜ f g, g ud.granstvenskch committee-- · on inventions and discoveries at the State Committee for Science and Technology of the USSR 113035. Moscow. Zh-35, Raushskaya nab., 4/5 11 Roi ^Mr. Peno Publishing House Patent, Uzhhorod, Gagarin St. 101