Small-range three-dimensional sensor and testing method thereof

A test method and sensor technology, which is applied in the field of sensor measurement, can solve problems such as small measuring range, low measurement accuracy, and large inter-dimensional coupling, and achieve the effects of simple elastic body structure, reduced inter-dimensional coupling, and high measurement accuracy

Pending Publication Date: 2019-12-24
NANJING BIO INSPIRED INTELLIGENT TECH +1
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Problems solved by technology

As far as three-dimensional sensors are concerned, there is low measurement accuracy, which is manifested in the large inter-dimensional coupling, which generally reaches 10%, and even reaches 30%. Especially in small-scale three-dimensional sensors, such a large coupling will ca

Method used

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  • Small-range three-dimensional sensor and testing method thereof
  • Small-range three-dimensional sensor and testing method thereof
  • Small-range three-dimensional sensor and testing method thereof

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[0071] Example

[0072] Such as figure 1 with 2 As shown, a small-range three-dimensional sensor includes an elastic body 1, an upper cover plate 2, a lower cover plate 3, and a circuit board 5. The circuit board 5 is arranged in the elastic body 1, and the upper cover plate 2 and the lower cover plate 3 are respectively fixed On the upper and lower sides of the elastic body 1; the elastic body 1 includes a force bearing platform 6, a wheel tyre 8, and four symmetrically arranged strain beam groups 7. The wheel tyre 8 is sleeved on the outside of the force bearing platform 6, and four strain beam groups 7 is evenly distributed between the force platform 6 and the wheel tyre 8. One end of each group of strain beams 7 is connected to the outer surface of the force platform 6, and the other end is connected to the inner surface of the wheel tyre 8. Group 7 includes three strain beams, each of which is in a "T" shape as a whole; strain gauges are attached to the strain beams; the st...

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Abstract

The invention discloses a small-range three-dimensional sensor comprising an elastic body, an upper cover plate, a lower cover plate and a circuit board. The circuit board is arranged in the elastic body; and the upper cover plate and the lower cover plate are fixed to the upper side and the lower side of the elastic body respectively. The elastic body includes a stress table, a wheel rim and foursymmetrically-arranged strain beam sets. The wheel rim sleeves the outside of the stress table. The four symmetrically-arranged strain beam sets are evenly distributed between the stress table and the wheel rim; and one end of each strain beam set is connected with the outer surface of the stress table and the other end of each strain beam set is connected with the inner surface of the wheel rim.The small-range three-dimensional sensor has advantages of simple structure, great easiness in processing, and high measuring precision and the like. In addition, the invention also discloses a testing method of the small-range three-dimensional sensor. According to the testing method, a measurement method of measuring one direction by using a plurality of bridge circuits is employed and measurement values of the bridge circuits are added in software to obtain force values (or voltage values) of the bridge circuits. With the scientific and effective measuring method, a a design method of a small-range sensor or even a micro-range sensor can be provided.

Description

technical field [0001] The invention belongs to the field of sensor measurement, and relates to a small-scale three-dimensional sensor and a testing method thereof. Based on the principle of resistance strain type, the invention is mainly used in a gecko imitation robot kinematics testing system. Background technique [0002] With the rapid development of science and technology, sensors have penetrated into various fields of industrial production. The typical ones in front of us are the robot industry, the grinding industry, various friction and wear testing machines, etc. As far as the sensor principle is concerned, the common ones are resistance Strain gauge principle, photoelectric principle, capacitive principle, electromagnetic principle, etc., one-dimensional sensor, two-dimensional sensor, three-dimensional sensor, six-dimensional sensor, etc. As far as three-dimensional sensors are concerned, there is low measurement accuracy, which is manifested in the large inter-d...

Claims

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Application Information

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IPC IPC(8): G01L5/16
CPCG01L5/161
Inventor 相立峰李晨黄肖飞
Owner NANJING BIO INSPIRED INTELLIGENT TECH
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