Propeller blade non-contact measurement method and system based on dynamic focusing laser and electronic equipment

The invention discloses a propeller blade non-contact measurement method and system based on dynamic focusing laser and electronic equipment. The method comprises the steps that the system plans a propeller measurement path through a left camera in a binocular camera module and a laser galvanometer...

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Hauptverfasser:	LIN WEI, ZHANG HONGJI, ZHU CHENGSHUN, ZHANG HUI, FANG XIFENG, ZHANG CHUNYAN, FAN QIMING, YAN CHAO
Format:	Patent
Sprache:	chi ; eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
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creator	LIN WEI ZHANG HONGJI ZHU CHENGSHUN ZHANG HUI FANG XIFENG ZHANG CHUNYAN FAN QIMING YAN CHAO
description	The invention discloses a propeller blade non-contact measurement method and system based on dynamic focusing laser and electronic equipment. The method comprises the steps that the system plans a propeller measurement path through a left camera in a binocular camera module and a laser galvanometer module; the optical lens module is used for adjusting the shape and size of a laser spot on a paddle so as to improve the spot extraction precision; preprocessing the light spot image by adopting a frame difference method and morphological opening operation, quickly segmenting light spot image points on the propeller blade, and calculating a laser spot center coordinate by combining a Gaussian fitting method and a local gravity center method; the binocular camera module is used for obtaining three-dimensional coordinates of laser spots on the to-be-measured propeller, and then parameters such as the screw pitch of the propeller are calculated. According to the invention, the measurement precision and the data proce
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subjects	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING MEASURING ANGLES MEASURING AREAS MEASURING IRREGULARITIES OF SURFACES OR CONTOURS MEASURING LENGTH, THICKNESS OR SIMILAR LINEARDIMENSIONS PHYSICS TESTING
title	Propeller blade non-contact measurement method and system based on dynamic focusing laser and electronic equipment
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