Probe type composite pressure sensor

A pressure sensor, probe-type technology, applied in the field of sensors, can solve the problems of inability to adapt to the coefficient of dynamic friction, compact working space structure, undiscovered, complex structure, etc., and achieves the effect of small size, wide application range and high sensitivity

Inactive Publication Date: 2006-02-22
SHANGHAI DIE TECH INST
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  • Abstract
  • Description
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Problems solved by technology

However, this device can only measure the average coefficient of dynamic friction on one surface and has a complex structure and large volume, so it cannot be adapted to occasions where the coefficient of dynamic friction of multiple points needs to be measured at the same time, the working space is small, and the structure is compact
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Method used

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  • Probe type composite pressure sensor

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Embodiment Construction

[0011] Such as figure 1 As shown, the present invention includes: probe 1, tangential force cantilever beam elastic body 2, ball 3, pre-tightening bolt 4, positive force cantilever beam elastic body 5, pasted resistance strain gauge 6, and its connection relationship is: The needle 1 passes through the tangential force cantilever beam elastic body 2 and then contacts with the positive force cantilever beam elastic body 5 through three balls, and the ball 3 and the pre-tightening bolt 4 are relatively fixed on the positive force cantilever beam elastic body 5. The cantilever beam elastic body 2 is relatively fixed in the mold workpiece 7 through the probe 1 and the pre-tightening bolt 4, and the positive force cantilever beam elastic body 5 is fixed on the mold workpiece 7 by screws. Paste-type resistance strain gauges 6 are pasted on the elastic body 2 of the force cantilever beam.

[0012] The small probe 1 is used to transmit the deformation. The head size of the probe 1 is...

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Abstract

The invention includes probe, elastomer of tangential force cantilever, ball, pretension bolt, elastomer of forward force cantilever and bonded resistance strain gauge. Connected relation is as following: probe passing through elastomer of tangential force cantilever contacts to ball, which touches forward force cantilever; ball and pretension bolt are fixed on elastomer of forward force cantilever correspondingly; elastomer of tangential force cantilever through probe, and pretension bolt are fixed on mould correspondingly; elastomer of forward force cantilever through screw is fixed on mould; bonded resistance strain gauge is pasted on both of the said elastomers. The invention is capable of measuring frictional coefficient in forming procedure of drawing sheet material in high efficiency, and provides features of small size and multipoints measurement.

Description

technical field [0001] The invention relates to a pressure sensor, in particular to a probe type combined pressure sensor. It belongs to the field of sensors. Background technique [0002] In scientific research and engineering applications, it is often necessary to measure the normal force and tangential force at a certain position at the same time and calculate the friction coefficient, especially in the sheet metal deep drawing process, the friction coefficient is the most important factor affecting the sheet metal forming An important factor of performance, however, in the existing technology, the pressure sensor can only be used to measure the normal force, or can only be used to measure the tangential force, but can not measure the normal force and the tangential force at the same time , there is no effective means to measure the normal force and tangential force at the same time and calculate the friction coefficient, which brings great inconvenience to further data ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01L1/22G01N19/02
Inventor 娄臻亮吴年盛舒世湘龚红英朱伟
Owner SHANGHAI DIE TECH INST
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