SU1627825A1 - Thermal method for compensating initial level of strain-gauge signal - Google Patents

Abstract

The invention from Poen g g kchmoMeTrIN AND CHChdeT IGPOPHONGLY P tenomchirpchci and,. ME-TCHNCHRSKYH P1CH1SH, CHLBOTLYUSHG- Shch II PpeMonnif- i gmper i ryi a. I PJIF. h op kTSNIYA - GNI-RNIR. P L I1 1 (i 1 ilement ge m K) 1) rchip nfuin tslc, r ssN ZOPROTRNIr O1NSGP1GYa I S iO ti lrich and by /. npii pers psnpchh tempera gurlk. The invention of the invention is the spine unit on and the preparation of the transducer for the spreading of the electro-physical CJJOIICIR material plots. The goal of the goal is achieved by p- & ng by placing the points at the two points in the geometric center of the tenore eerator, performing one of the parts of the tolerance for the pa. Mcl cnnp t HROPHYPCHRIKh CliOlC with GN TUMI Ml II parts, which is M c p i MCI i - the omission of o6i4, Pi i, the points of dunuch teach i & i1 of the rival price of the repertoire of () of the ecumenical of the JHlHHiHe one about in uch; to gr i as the direct form of the pt1-shepsh, compile the shm of the ooiiym IOMIV of the two of the Itohm with ITL IHHIM and I’m hired i (.cht i, i ghpo at h and i .. i O111O1G1ONPYu 1h Ma I (JMIDJIV. I flVl ir.i..kak gakim, i oDu HOIHIIK-IDI i Par (TSRPO-CKHCH G bOUJUDuM t,) IM i LPLSNIO rlp PK K L ON IK, chiO iiin gelnich p iriMein nii it 14.1 h, IK i. Dropped HMMVUIOI o CHI on ia 01 it1 iii ury, and OS ii OS i pshchchk h 11 h and oi ii .. m rturiopes ko-chkch apppp | hplir sh, n 1Prn (CP, 1 P, | J P 01 l.lH Mi ;., with DINRN1P1X C K (PI 1CHG) (i1 11 P. ГЦСЧЧ ОПИ ПС1К - | Ь ЧЦ 41 LTIY UpOi N1G-, f (H f, j AND II 1L I H Ü1 I tshpo RS (i orchp. HI:. 14), I PI li PFM1. 1 FHMO v. 1 d / 1 il (Iipi Ь, 11) ,,, I, - POTKI, (C PIN I i, i I (i if 1 v in i h J., ii plots with lupiti M t h ai l; - och, rgm — h j ern. Tr. 1 hg,: iciha pch, i Ich-ienpi) to m ,,,.h, i./ .i, such that no iiiiiK.un CRi and,, i,. ter-: oelek j nlutz: syd id nj p il il but rl las, 1-ol | 1 very dhhhk ii to change the sad jiui4iM i of the spinal cord .a or that epaiypn, and the implementation of an exact lerTUi compensation adjusting me , in i; ri on two current leads, connection h, g by the ends of the lattice. iG About to% -h. ; Yu K el, „

Description

 FIG. 1 shows a schematic of a strain gauge with a temperature compensation of the initial level of the output signal; FIG. 2 is a circuit for its incorporation into the measuring circuit.

Tep shrechstor contains a substrate 1 ekrypimg and on a gai lattice of tensor-3Hciopj ich of two, sections 2 and 3 with an objec- tive point, .- gh; 4, and 5, 6, and 7, which are located at the ends and intermediate point of 8 times.

The method is carried out as follows OP.

In the manufacture of a batch of tensoristors on test technological kz-M M, -; p iv year, the material is first - then i M jK, nipshpp or in the form of HP i.-K ini cutting the grate conductor, connecting e1 o extinguished in reoiiej- rp h cr "m nun pe ien yuististor obtsuyu

um i,. TK pi M TOKOV1.SODOM 5 TZK,

uioun but g, c c. for h at a pair of Mai with a rialon iiep.-iOi with ii i i pro: about the hour and 2 and 3 t M edecn, 1 dmc i., give strength approximately w-ln-icN f to the vene r; and.-t iiLbiiio initial level vykhopg (t h gpgn HI i from the temperature. When - g i m: I., LJI iint start: about the level vy.odpsm i, i pi from the temperature of the ijpsM., j, 11 lu ibv between pr 1mezhu ch-n (and goat Km N re i ki and connected to the mi i1 i ivMioiii section 3 current source 7,

roLjniiit-Hiie dissimilar materials at oOpty point 4 are made by welding G1koryiod 5 made of the material of the first 2, gots, and the curvature 6 and 7 - from the second section Kageriap 3. All

Tokos. 5-7 also connected by welding. , to accurately compensate for the resistance of the strain gage vkstogagat to the bridge circuit so that the thermoelectronic driving force produced at common point 4 is applied to the current leads 5 and 7, and the electrical circuit is closed through the resistor 9 of the adjacent bridge h, the adjusting resistor, and the resistor 9. voltage at the ends of the strain gauge lattice. With this connection point

Q

50

5 Q

0

current leads 5 and 6 with conductors from another material thermostatic.

Thus, the proposed method of temperature compensation of the initial level of the signal of the strain gauge can be used for wire, foil and metalfloss tenchoresistors.

FORUMAWLAH AND ISLANDS

The method of temperature compensation of the initial signal level of the tensor-sensor, which consists in the fact that a generator with two lattice sections from materials differences and three outputs connected to the ends and an intermediate thin lattice, select the materials of hook sections to determine the dependencies of physical properties The xapaiciepnactic plots from temperature were equal in terms of frequency and opposite in sign, in hl and h and in that, in order to reduce the costs of manufacturing pzorechstor h due to the expansion of tolerance i deviation Electrophysically the properties of the matsrials of the plots, around a point of two plots — KOi P fnonar — in the geologic center of the gencho resorpore, the first part is performed as a straight line of the conductor of the repetition wire connecting the regional point of the two sections with the first ; opt5dome, the intermediate point of connection between the repetition and the second current output is placed on the straight section of the second section, which includes a common point with the first section; the material of the first section is selected in relation to Y to the material of the second section so that the resulting thermoelectromotive The sludge was approximately equal in magnitude to the additional variation of the output signal of the strain gauge as a function of temperature, and the exact temperature compensation was carried out by adjusting the voltage on the CEREALS connected to the ends of the lattice.

8 1

Claims (2)

The invention relates to tensometry and can be used in those isometrically ·. · Gauges · .: mechanical quantities, operating ir and herreny: ·: temperatures. Paul invention - reducing costs pa isot. the appearance of pressure sensors for SCH ·; pat.iim rhenium of the tolerance for disconnecting ••• ec · physical properties of the material; in sections, which is achieved by placing a common point of two teaching: ι; uc · ι · ometric center of the tensor-number ι od, performing one of the section · ' a straight segment of the grating conductor connecting a common point |: in two sections with the first tokynol, the selection of the material part-ι st.> in relation to the material of the other snail ·· ka such, ¹ tube of nosal-aphid and this pair of thermoelectric. 11 (! |; r ιό, the driving force was approximately equal to | yulpy?. · and only at 11 ss and ιι ιι 11 yn knew nns g. the level of the output signal οι 'gemlt g · tours, and the implementation of one of the following :: ·· by the ballot box <> mpn with a ηι π ι per ul iron piece voltage on two tons of outputs, cri connected to the terminal. Resh · τκη. Stsoy can be done for prog-schoch others, foil’chg ·: and mot al h; chgaev'44! lx tensorsistrock. 2 ill.