Torque dynamic measurer of low speed spindle base on visual sense

A technology for dynamic measurement and rotating shafts, applied in measuring devices, torque measurement, power measurement, etc., can solve problems such as difficulty in ensuring stability, uncompact mechanical equipment chassis, interference shafts, etc., and achieve the effect of friendly human-computer interaction characteristics

Inactive Publication Date: 2005-01-12
SHANGHAI JIAO TONG UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Its disadvantages are: First, the laser transmitter and receiver must be installed near the rotary pump, and there must be no interference between the two. Therefore, it may cause the interior of the mechanical equipment chassis to be uncompacted, or interfere with other axes; The analog devices used in the system are complex, it is difficult to ensure stability, and the measurement accuracy is not high enough

Method used

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  • Torque dynamic measurer of low speed spindle base on visual sense
  • Torque dynamic measurer of low speed spindle base on visual sense
  • Torque dynamic measurer of low speed spindle base on visual sense

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Embodiment Construction

[0017] Such as figure 1 As shown, the present invention includes: a detection target 1 , a tracking and observation system at the same speed 2 , an image acquisition and digital image processing system 3 , and an input and output system 4 . The connection relationship is as follows: the same-speed tracking and observation system 2 is fixed on the detection target 1, and the same-speed tracking and observation system 2, the image acquisition and digital image processing system 3, and the input and output system 4 are connected by cables.

[0018] Such as figure 2 As shown, the detection target 1 includes a target axis 5 and a marker line 6 . The marking line 6 is coated with a permanent luminescent substance on a certain generatrix of the test target axis 5. When the target axis 6 is subjected to torque, it will be twisted and deformed, and the luminous generatrix will be deformed into a helical line.

[0019] The tracking observation system 2 at the same speed includes: a f...

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Abstract

The invention is composed of object to be detected, track and observation system in synchro speed, image collection and digital image process system, I / O system. Through cable, which are connected through cable. The track and observation system is fixed on the object to be detected. The invention is non-contact measurement. Based on geometrical optics, picking up light signal and using relation of geometric similarity measures shearing strain angle without use of sensor so as to provide high measuring precision. The invention is applicable in complex operating environment since signal is transferred through optical fiber, and CCD is setup outside so that influence of external factors are avoided. Features are: dynamic measurement, dynamic digital display, and friendly man-machine interactive characteristics.

Description

technical field [0001] The invention relates to a torque measurement device, in particular to a vision-based torque dynamic measurement device for a low-speed rotating shaft. Used in the field of mechanical testing technology. Background technique [0002] Torque is an important working parameter of rotating power machinery. It is widely used in aircraft propellers, tanks and ship lifts. Torque measurement has become an important part of mechanical quantity measurement. Torque measurement is generally based on the changes in physical parameters (such as deformation, stress and strain) produced by the elastic shaft when transmitting torque. According to the deformation geometric parameters, physical parameters and static relations of the elastic element of the torque measuring sensor, the torque measuring instrument can be divided into strain type, stress type and deformation type. Influence of ambient temperature. The deformation type can be divided into optical type, pho...

Claims

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Application Information

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IPC IPC(8): G01L3/00
Inventor 喻再光赵群飞
Owner SHANGHAI JIAO TONG UNIV
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