Two-dimensional force measurement sensor and measurement method

Abstract

The invention discloses a two-dimensional force measurement sensor and a measurement method. The two-dimensional force measurement sensor comprises a force measurement base, a force bearing piece andat least two component force measurement structures; the force bearing member is used for bearing a to-be-measured two-dimensional force in a force measuring surface or parallel to the force measuringsurface. Each component force measuring structure is provided with two connecting parts, wherein one connecting part is arranged on the force bearing piece, the other connecting part is arranged on the force measuring base, a first force measuring direction is formed between the two connecting parts of one component force measuring structure; and is used for measuring a first unidirectional forcevalue. A second force measuring direction forming an included angle with the first force measuring direction is formed between the two connecting parts of the other component force measuring structure and is used for measuring a second one-way force value, and the two-dimensional force to be measured is synthesized according to the first force measurement direction, the first one-way force value,the second force measurement direction and the second one-way force value, so that the influence of inter-dimensional crosstalk is reduced, the measurement precision is improved, and the two-dimensional force in the force measurement surface is conveniently and quickly obtained.

Description

technical field [0001] The invention relates to the technical field of sensors, in particular to a two-dimensional force measurement sensor and a measurement method. Background technique [0002] Two-dimensional force measurement sensors are widely used in robotics, manufacturing, biomechanics, aerospace, metallurgy, transportation and other industries. Two-dimensional force measurement sensors refer to a force sensor that can measure force or torque components in two directions at the same time. At present, the mainstream of two-dimensional force measurement sensors is to attach strain gauges to different parts of an elastic body according to the mechanical characteristics to complete the measurement of force or moment in different directions. When the sensor is subjected to two-dimensional force, the internal stress distribution is very Complex, the deformation caused by force in one direction will definitely affect the deformation of the elastic body in other directions, ...

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Problems solved by technology

[0002] Two-dimensional force measurement sensors are widely used in robotics, manufacturing, biomechanics, aerospace, metallurgy, transportation and other industries. Two-dimensional force measurement sensors refer to a force sensor that can measure force or torque components in two directions at the same time. At present, the mainstream of two-dimensional force measurement sensors is to attach strain gauges to different parts of an elastic body according to the mechanical characteristics to complete the measurement of force or moment in different directions. When the sensor is subjected to two-dimensional force, the internal stress distribution is very Complex, the deformation caused by force in one direction will definitely affect the deformation in other directions of the elastic body, resulting in serious and difficult to solve the problem of inter-dimensional coupling, and it is not convenient to measure two-dimensional force

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