Embedded load sensor

A load sensor and embedded technology, applied in the direction of instruments, measuring devices, measuring force, etc., can solve the problems of poor applicability and achieve the effect of easy processing and manufacturing, small size and high precision

CN109813472APending Publication Date: 2019-05-28湖南道达宇科技有限公司
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2019-05-28

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Abstract

The invention belongs to the technical field of load sensors, and particularly relates to an embedded load sensor. The embedded load sensor comprises a metal elastomer, a substrate, resistance straingauges, a solid-state rheological body and a base; a groove is formed in the base plate, and the metal elastomer is inlaid in the groove; the lower surface of the metal elastomer and the lower surfaceof the substrate are located on the same plane; a closed space is formed between the substrate and the base, and the solid-state rheological body is arranged in the closed space; a first groove is formed in the surface, away from one side of the base, of the metal elastomer; the resistance strain gauges are arranged in the first groove. The substrate, the metal elastomer, the solid-state rheological body and the base are cooperatively used, so that the size of the metal elastomer is reduced, and the problem that the large-load sensor is difficult to manufacture is solved.
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Description

technical field

[0001] The invention belongs to the technical field of load sensors, in particular to an embedded load sensor. Background technique

[0002] At present, the structural types of load sensors commonly used at home and abroad are mainly columnar, spoke, and circular. Due to the different structural types of these sensors, their deformation methods are different, and the methods of sensing deformation through resistance strain gauges are also different: columnar sensor measurement The compression deformation of the cylindrical elastic body is measured; the spoke type sensor measures the shear deformation of the spoke; the ring type sensor measures the compression and tensile deformation of the ring elastic body at the same time. Each of these structural types of sensors has its advantages and disadvantages. For example, the columnar and spoke sensors have high precision, but the structural size is too large; the ring-shaped sensor has slightly lower precision an...

Examples

Embodiment Construction

[0037] In order to better explain the present invention and facilitate understanding, the present invention will be described in detail below through specific embodiments in conjunction with the accompanying drawings.

[0038] like Figure 1 to Figure 3 As shown, the present invention discloses an embedded load sensor, which includes a metal elastic body 1 , a strain gauge 2 , a substrate 3 , a solid rheological body 4 and a base 6 .

[0039] The substrate 3 is provided with a groove, and the metal elastic body 1 is embedded in the groove, and the lower surface of the metal elastic body 1 and the lower surface of the substrate 3 are in the same plane.

[0040] A closed space is formed between the substrate 3 and the base 6, and the solid rheological body 4 is arranged in the closed space.

[0041] A first groove is provided on the surface of the metal elastic body 1 away from the base 6 , and a plurality of strain gauges 2 are arranged at the bottom of the first groove.

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