SU558182A1 - Load cell sensor - Google Patents

Description

one

This invention relates to a splicing technique and can be used in automatic weighing systems.

The known force-measuring sensor, a solerin, a ny magnetirovod with windings, does not provide the required accuracy of force measurement (1).

The closest in technical terms to yes} of the invention is a force-measuring sensor comprising a clamping bracket made in the form of a monolithic bar with a through cylindrical groove in which a magneto-elastic converter, a strength-receiving element 2, is installed.

Od) {ako the known sensor has insufficient measurement accuracy due to its regression from nonlinearity.

To improve the accuracy of measuring the forces by improving the linearity of the output characteristics, a U-shaped power-transmitting element and two brackets with side rods positioned at an angle of 30-60 to the base and in contact with the co-ordinate of the magnetowire of the converter, and irish than the mastouruiruyuyu converter, are introduced into the proposed sensor. azme1ccy between brackets, and one of them is set to form a force-transmission element; the base and side rods of the brackets can be molded in the form of an irismatic

2

articulated, the bracket can be

bent in the center of the base and provided with a central support rod.

FIG. I depicts the described force measuring sensor; FIG. 2-5 are versions of its implementation.

Load sensor (Figs. 1-3) contains a magnetically elastic transducer 1, a shaped force-transmitter 2 and a spherical force-receiving 3 elements, two clamping brackets 4 and 5 with side rods 6, 7, 8, 9 located iodine angle of 30-60 ° to the base m 10 and 11.

9 and bases 10,

Side rods 6, 7, 8 11 can be performed

with prismatic joints (Fig. 4). AT

the case of a hurried transducer magnetoelastic (Fig. 5) base 10, 11

brackets 4, 5 are bent in the center at an angle of 120

and are provided with additional zeitral oior rods 12, 13. The bases 10, 11 of the brackets 4, 5 along the edges are provided with support wheels and 14, 15 for mounting the figured power-transmitting element 2.

Under the loading of the magnetoelastic I1) generator 1 at an angle of 30--60 °, the force transducer of e.1meite 2 and brackets 4, 5 with flexible bases 10, 11 all elements of the magnetic circuit perceive measured silicon and change the resistance and its effect. The redistribution of the magnetomotive force decreases significantly. If it is necessary to distribute the efforts in the material of the magnetoelastic and transducer without any constructive changes, the design shown in will be used for the measurements. 4. The side rods b, 7, 8, and 9 of the clip 4 n 5 with a measuring probe are set at the required angle (30-60 °) in the corresponding, iix shaped notches of the bases 10 n 11.

For the hexagonal and ring magnetic circuits (FNG. 5), the measured force would be necessary to decompose K11t into several components, which are identical in size. For this, the axes of the rods 6, 7, 8, 9, 12, 13 of the brackets are set uniformly through 60 ° n, and are strengthened in 1) a;

Ф ормула and 3 обрэт с i н

1. A force-measuring sensor containing a clip in contact with a magnetic elastic transducer, characterized in that, in order to increase the accuracy of force measurements due to improved output characteristics, a U-shaped de-ripping element and two brackets with side rods are placed under it angle of 30-60 ° to the base and

contacting along the contour of the magnetic circuit of the transducer, the magneto-magnetic converter placed between the brackets, one of which has a U-shaped sni-transmitting element.

2. Sensor by n. 1, characterized in that the axis and side rods of the brackets in it are in the form of an articulated joint.

3. Sensor no. 1, characterized in that

that in it, each bracket is bent in the center of the base and provided with a central support rod.

Istochnink nnformatsin, taken into account when exerntize:

1. Shevchenko G. I. “Magnetic anisotropic Danish. M., “Energia, 1967, p. 21, FIG. 18.

2. USSR author's certificate Afg 301576, M. Kl.2 G OIL 1/12, 1971 (nrototype).

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