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Two-dimensional magnetoelastic force sensor

A load cell and magnetoelastic technology, applied in the field of sensors, can solve the problem of fewer load cells and achieve the effect of expanding applications

Pending Publication Date: 2022-01-25
SHANGHAI INST OF PROCESS AUTOMATION & INSTR
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Problems solved by technology

However, limited by the measurement principle, there are fewer multi-dimensional load cells

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  • Two-dimensional magnetoelastic force sensor
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Embodiment Construction

[0021] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some, not all, embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without creative efforts fall within the protection scope of the present invention.

[0022] A free object in space has six degrees of freedom, respectively moving along the three axis of X, Y, and Z, and rotating around the three axes, so the force also has six dimensions. The load cell is a sensor used to measure the force value. For the single-dimensional load cell, it has been developed relatively maturely, and the most commonly used one is the resistance strain type load cell. However, limited by the measurement principle, there are fewer multi...

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Abstract

The invention provides a two-dimensional magnetoelastic force sensor, and relates to the technical field of sensors. A main body of the sensor is formed by laminating a plurality of magnetostrictive materials with the same size, and four through holes are formed in the main body; a first group of coils is formed by winding a wire through the first through hole and the third through hole; a second group of coils is formed by winding a wire in the second through hole and the fourth through hole in a penetrating manner; the first and second groups of coils are orthogonal; one of the first group of coils and the second group of coils is used as a magnet exciting coil, and the other one is used as a measuring coil, and the magnitude and the direction of force borne by the main body are determined by measuring the magnitude and the phase of induced electromotive force output by the coils; and the sensor is for sensing a force Fy applied on the main body in a direction perpendicular to the X direction and for sensing a force Fx applied on the main body in a direction perpendicular to the Y direction. The two-dimensional magnetoelastic force sensor is provided, and compared with a traditional single-dimensional force sensor, the two-dimensional magnetoelastic force sensor can measure force values in two dimensional directions, and the application of the sensor is expanded.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a two-dimensional magnetoelastic load cell. Background technique [0002] A free object in space has six degrees of freedom, respectively moving along the three axis of X, Y, and Z, and rotating around the three axes, so the force also has six dimensions. The load cell is a sensor used to measure the force value. For the single-dimensional load cell, it has been developed relatively maturely, and the most commonly used one is the resistance strain type load cell. However, limited by the measurement principle, there are fewer multi-dimensional load cells. Contents of the invention [0003] The object of the present invention is to provide a two-dimensional magnetoelastic load cell to solve the problem of multi-dimensional force measurement of the sensor, aiming at the above-mentioned deficiencies in the prior art. [0004] To achieve the above object, the technical scheme adop...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01L5/169
CPCG01L5/169
Inventor 刘晓蒙张怀锁罗明德卢俞彬黄晓陆
Owner SHANGHAI INST OF PROCESS AUTOMATION & INSTR
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