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Large value piezoelectric quartz multi-component force sensor

A technology of force sensor and piezoelectric quartz, which is applied in the field of six-dimensional force value measurement, can solve the problems that cannot meet the requirements of six-dimensional force measurement of force value, and achieve the effect of simple structure, high sensitivity and convenient use

Active Publication Date: 2008-03-26
DALIAN UNIV OF TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Huge heavy-duty operating equipment works under high temperature, heavy load, and impact conditions, so the above-mentioned traditional six-dimensional force sensor and traditional high-value sensor cannot meet the requirements of high-force six-dimensional force measurement

Method used

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  • Large value piezoelectric quartz multi-component force sensor
  • Large value piezoelectric quartz multi-component force sensor

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Embodiment Construction

[0009] The implementation of the present invention will be described in detail in conjunction with the accompanying drawings. As shown in FIG. 1 , the material of the sensor body is stainless steel, and the material of the upper opening sleeve 6 and the lower opening sleeve 7 is alloy steel. The geometric parameters of the elastic link should be selected to ensure that the stiffness of each phase is the same. When in use, the lower open sleeve 7 is first installed on the intermediate shaft 13, fastened with bolts 12, then the sensor body is placed on the intermediate shaft 13, the sensor body is fastened by the elastic force of the lower open sleeve 7, and then The upper opening sleeve 6 is sleeved on the intermediate shaft 13 , the sensor body is fastened by elastic force, and then the upper opening sleeve 6 is fixed on the intermediate shaft 13 with bolts 11 . When the shaft is stressed, the upper open sleeve 6 and the lower open sleeve 7 act on the sensor body, and act on t...

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Abstract

The invention relates to a big-force piezoelectric quartz multi-component force sensor. It is made up of the sensor body composed by the up cover, the pedestal, the force sensing component, the pretightening bolt, the hollow bolt, the lock ring and the sleeve with two apertures. The force sensing component in sensor is the quartz wafer. The four groups of quartz crystal are set in the form of square relative to the coordinate, which are installed between the up cover and pedestal buckle slot and were pretightened by the shrink range. The sensor has the simple structure, good character, low cost, high rigidity, high sensitivity, high natural frequency, good linearity, small coupling ratio and small cross distribution. So it can get the static, dynamic and instantaneous forces of six dimensions. It is mainly for measuring the six dimension big force in the heavy load operation device and the other axes. So it has widely use.

Description

technical field [0001] The invention belongs to the field of sensor and its measurement and control field, and in particular relates to the measurement of the six-dimensional force value of giant heavy-duty equipment. Background technique [0002] Traditional six-dimensional force sensors, such as six-dimensional force sensors with three vertical rib structures, cylindrical six-dimensional force sensors, double-ring six-dimensional force sensors, six-dimensional force sensors with four vertical rib structures, and non-radial three-beam structures Six-dimensional force sensors, cross-structure six-dimensional force sensors, Stewart structure six-dimensional force sensors, etc., all use strain gauges as force sensitive elements to measure the six-dimensional force on the surface of the measured object, some of which have complex structures and some are large in size. , Some have low stiffness, some have low strain sensitivity, and some are difficult to decouple, and they are m...

Claims

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Application Information

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IPC IPC(8): G01L1/16
Inventor 孙宝元李映君张军钱敏贾振元
Owner DALIAN UNIV OF TECH
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