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High-elasticity piezomagnetic body based on piezo-magnetic effect and high-elasticity force cell sensor

A force sensor and piezomagnetic effect technology, which is applied in the measurement of the change force of the magnetic property of the material caused by the applied stress, can solve the problems of slow response, low excitation frequency, and excessive size.

Active Publication Date: 2018-11-16
北京中博力科测控技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a highly elastic piezomagnetic body and a highly elastic load cell based on the piezomagnetic effect to solve the existing problems of low bearing stress, low excitation frequency, slow response, and excessively large dimensions

Method used

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  • High-elasticity piezomagnetic body based on piezo-magnetic effect and high-elasticity force cell sensor
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  • High-elasticity piezomagnetic body based on piezo-magnetic effect and high-elasticity force cell sensor

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0035] A highly elastic piezomagnetic body based on the piezomagnetic effect, see Figure 1-Figure 6 , which includes at least two layers of piezomagnetic material sheets 10 arranged in parallel, any two adjacent layers of piezomagnetic material sheets 10 are connected by a reinforcement member 11 whose strength is greater than that of the piezomagnetic material sheet 10 to form a piezomagnet, the reinforcement member 11 Made of non-magnetic material;

[0036] The piezo-magnetic material sheet 10 is provided with at least two groups of horizontal holes 3 and at least two groups of vertical holes 4, the horizontal holes are perpendicular to the vertical holes, and a horizontal coil W is arranged in each group of horizontal holes. 1.2 5. A vertical coil W is arranged in each group of vertical holes 3.4 6. Any two adjacent horizontal coils W 1.2 5 are electrically connected, any two adjacent vertical coils W 3.4 6 are electrically connected.

[0037] On the other hand, this emb...

Embodiment 2

[0044] On the basis of Embodiment 1, the highly elastic piezomagnetic body based on the piezomagnetic effect also has the following structure:

[0045] The reinforcement member 11 is made of non-magnetic steel plate, and the piezo-magnetic material sheet 10 is made after rolling, stamping, eliminating internal stress, recovering magnetic properties and heat treatment. For strength requirements, the reinforcing member 11 is made of high-strength stainless steel plate.

[0046] The piezo-magnetic material sheet 10 is an iron-silicon, iron-aluminum or iron-nickel soft magnetic alloy.

[0047] The high-elastic piezomagnetic body based on the piezomagnetic effect of the present invention also includes a connecting piece 13 made of high-strength stainless steel round steel material. The piezomagnet is provided with a connecting through hole, and the connecting piece 13 passes through the connecting passage in turn. After the holes are made, the reinforcement member 11 is fastened t...

Embodiment 3

[0054] On the basis of Embodiment 1 or 2, the highly elastic load cell based on the piezomagnetic effect also has the following structure: the hole A 1 and hole A 2 Center of Hole Spacing to Hole A 3 and hole A 4 The distance between the center lines of the holes is greater than or equal to three times the pitch of a hole.

[0055] Further, the hole A 1 with hole A 2 The sectional plane of the hole spacing is perpendicular to the external force F, and the hole A 3 and hole A 4 The sectional plane of the hole spacing is parallel to the external force F.

[0056] Further, the diode D of the differential rectification output circuit 1 、D 2 、D 3 、D 4 And the load impedance Rf is welded on a circuit board, which is implanted inside the sensor after insulation treatment.

[0057] The working principle of the present invention and Figure 7 The background technology shown works the same, so the Figure 7 For illustration, the difference in circuit connection lies in the...

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Abstract

The invention discloses a high-elasticity piezomagnetic body based on a piezo-magnetic effect and a high-elasticity force cell sensor. The piezomagnetic body comprises at least two piezomagnetic material sheets arranged in parallel; any two adjacent piezomagnetic material sheets are connected by a reinforced component with the strength larger than that of the piezomagnetic material sheet to form the piezomagnetic body; and the reinforced component is made of a non-magnetic material; at least two groups of horizontal hole positions and at least two groups of vertical hole positions are arrangedat the piezomagnetic material sheets, wherein the horizontal hole positions are perpendicular to the vertical hole positions. The high-elasticity piezomagnetic body has the following beneficial effects: with the reinforced components, the bearing stress of the piezomagnetic body is enhanced; the applicable range of the high-elasticity piezomagnetic body is extended; compared with the piezomagnetic body made of the piezomagnetic material, the high-elasticity piezomagnetic body disclosed by the invention is suitable for the large tonnage detection environment under the condition of having the same dimensions; and because of the piezomagnetic material sheets, the excitation frequency is improved and thus the response time of the sensor is reduced and the measuring precision is ensured.

Description

technical field [0001] The invention relates to the technical field of automatic rolling force measurement for steel rolling, in particular to a highly elastic piezomagnetic body and a highly elastic force measuring sensor based on the piezomagnetic effect. Background technique [0002] The advantages of the electrical principle (three-wire excitation, differential compensation, DC output) described in the patent No. ZL 201110341029.2 are obvious, such as ( Figure seven ) shown. Since the pressure magnet adopts a load cell made of a whole piece of magnetic material, the strength of the magnetic material itself is low, so its bearing stress is low (the unit bearing stress is only less than 6Kgf / mm 2 When the output characteristic is linear relationship). For large-tonnage high-precision piezomagnetic force sensors (the unit load-bearing stress of large-tonnage force sensors requires 10Kgf / mm 2 Keep the output characteristic as a linear relationship), but it is difficult to...

Claims

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Application Information

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IPC IPC(8): G01L1/12
CPCG01L1/12
Inventor 高增雪邹凤欣
Owner 北京中博力科测控技术有限公司
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