Automatic complementary tension sensor with double sensors

Abstract

The invention relates to a tension sensor in the form of dual sensor automatic compensation, which is characterized in that a uniform section elastic sheet with the two ends fixed on a panel, and a torsion shaft clung to the elastic sheet are adopted, the elastic sheet and the torsion shaft are mutually fixed by the clamping of a fixing sheet; one end of the torsion shaft is a detecting end which is provided with a conducting part of a measured material, the other end is an output end, magnetic sheets are fixed at a dual output end, signal output elements of the sensor are fixed in each group of the magnetic sheets. The detecting end and the output end can be positioned at the two sides or the same side of the elastic sheet, and when at the same side, a balancing sheet is arranged at the other side so as to balance the two ends of the torsion shaft under static condition. The tension sensor has the advantages that a detecting device has compact structure, the tension change of the measured material can be output by the signal of voltage linear change after the change of a magnetic field, particularly, the structural form that the dual sensor and temperature influence are complementary is adopted, thus leading the measurement result to be more accurate and be in real-time.

Description

technical field [0001] The invention relates to a tension sensor in the form of double sensor automatic complementation, especially suitable for wire, rope, bundle, sliver, sheet materials, such as yarn, fiber strip, wire and cable, fiber optic cable, paper, steel plate, magnetic tape, plastic The detection and sensing of the force in motion of materials such as films. Background technique [0002] The force transforming elastic elements often used in current force sensors are as follows: cylindrical form with equal cross-section, ring form, thin plate form with equal cross-section, cantilever beam form and torsion shaft structure form. [0003] The equal-section cylindrical form is divided into two types: solid and hollow according to the shape of its longitudinal section. The structure is simple, the processing is convenient, and it can withstand large loads. The solid form can measure forces greater than 10kN, and the hollow form can only measure 1 ~ 10kN . [0004] Com...

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Problems solved by technology

[0008] 2005100240190 relates to "force sensor of automatic detection device", which is characterized by adopting an elastic sheet with equal cross-section fixed on a flat plate at both ends, a torsion shaft close to the elastic sheet, and the elastic sheet and torsion shaft are clamped by a fixed sheet. Fixed with each other; one end of the torsion shaft is the detection end, and the detection end is provided with a conductive part of the material to be tested, and the other end of the torsion shaft is the output end, and the output end is fixed with a magnetic sheet, and the signal output element of the sensor is fixed in the magnetic sheet; the detection end The output end and the output end can be located on both sides or the same side of the elastic piece. When they are on the same side, a balance piece should be set on the other side to keep the balance between the two ends of the torsion shaft under static conditions; The signal output of the voltage linear change reflects the tension change of the measured object; but due to the influence of temperature, the detection signal drifts, which affects the detection effect and dynamic long-term application, because the output signal of a single sensor is weak; Long structure makes it inconvenient to use

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