Recurve bow response on-line detection system

A detection system, resistance strain technology, applied in the direction of electromagnetic measuring device, electric/magnetic solid deformation measurement, acceleration measurement using inertial force, etc.

Inactive Publication Date: 2012-10-03
SOUTHWEST PETROLEUM UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no effective combined application of similar instruments and means at home and abroad. The patent of this invention fills up this gap at home and abroad.

Method used

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  • Recurve bow response on-line detection system
  • Recurve bow response on-line detection system

Examples

Experimental program
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Embodiment Construction

[0028] like figure 1 As shown in the figure, the recurve bow used by archers is simply modified, that is, the small three-axis resistance strain rosette (1), the miniature three-axis piezoelectric acceleration sensor (2) and the Piezoelectric chip ⑶.

[0029] The output of the small three-axis resistance strain rosette ⑴, the miniature three-axis piezoelectric acceleration sensor ⑵ and the piezoelectric wafer ⑶ is fixed along the bow piece with a thin lead-out line and drawn out in a centralized way, and connected with the resistance strain gauge ⑷ and the charge amplifier ⑸ respectively connect.

[0030] The outputs of the resistance strain gauge (4) and the charge amplifier (5) are connected with the control-based virtual signal analyzer (6). Preparations for recurve bow modification are complete.

[0031] When archers use the modified recurve bow for normal archery, the relevant strain response signals and acceleration response signals can be converted and amplified by t...

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PUM

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Abstract

The invention discloses a recurve bow response on-line detection system. Resistance strain testing, vibration testing and a control virtual-type signal analyzing soft and hardware technology are adopted; the static and dynamic strain and acceleration response of selected testing points on a recurve bow and mechanical dynamic parameters of the recurve bow are detected in real time on line, and objective experiment data are provided for the training of sportsmen and the development of a novel recurve bow. The particular implementation is that a small-type three-shaft resistance strain rosettes and a micro-piezoelectric-type acceleration transducer are bonded on the selected testing points of the recurve bow; response signals are transmitted to a strain meter and a vibration testing meter by leads; and after being converted and amplified, the response signals are transmitted to a control virtual-type signal analyzing meter for real-time analyzing treatment, thus the corresponding data curve diagrams and animation display and the like are obtained. The detection system can not influence the using performance of the recurve bow and the normal motion of users, not only can be used for the training of contestants, but also can be used for the detection analysis of stress and response of the recurve bow and prevents from adopting and installing each type of shock absorbers blindly, and is an effective means for archery coaches, sportsmen and the recurve bow researchers.

Description

technical field [0001] The patent of the invention uses small three-axis resistance rosettes, micro piezoelectric acceleration sensors, small piezoelectric wafers, strain gauges, vibrometers, and controllable virtual signal analyzers to form a recurve bow response online detection system. [0002] Paste small three-axis resistance strain rosettes, micro piezoelectric acceleration sensors, and small piezoelectric wafers on selected measuring points of recurve bow limbs, and use thin leads to transmit strain and acceleration response signals to strain gauges and vibrometers, After conversion and amplification, it is transmitted to a control-based virtual signal analyzer for real-time analysis and processing to obtain corresponding data, curves, charts, and animation displays. [0003] When the archer is nocking the bow until it is ready to launch, the strain response of each strain measuring point of the recurve bow can be completely tested and recorded for the whole process. ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01B7/16G01P15/09G01L1/16
Inventor 杨成张明洪
Owner SOUTHWEST PETROLEUM UNIV
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