基于机器视觉的聚焦换能器焦点快速定位研究

doi:10.3969/j.issn.1000-1158.2022.10.11

Abstract
Figure/Table
References (18)
Related Citation (15)

Download: PDF (46122 KB) HTML (1 KB)
Export: BibTeX | EndNote (RIS)

Abstract A method of fast focus location of focused transducer based on machine vision is proposed. According to the feature of the focused transducers geometric center, the arc adjacency matrix-based fast ellipse detection connection algorithm detects the transducers edge contour information, and then gets the focus position, the focus coordinate of the manipulator is calculated by the coordinate transformation relation, and the focus of the transducer can be located quickly by the manipulator. The focus coordinates of the transducer are obtained by scanning the sound field of the focal plane to verify the accuracy of the focus coordinates obtained by the method. The experimental results show that the focus of the method is in the range of -3dB real focus diameter, which proves that the method is feasible.

Key words： metrology focused transducer focus machine vision quick fix;ellipse detection

Received: 23 June 2021 Published: 14 October 2022

PACS:

TB95

	Service

	E-mail this article
	Add to my bookshelf
	Add to citation manager
	E-mail Alert
	RSS
	Articles by authors
	PENG Yuan
	ZHENG Hui-feng
	DONG Zhao-cheng
	YAO Run-guang

Cite this article:

PENG Yuan,ZHENG Hui-feng,DONG Zhao-cheng, et al. Research on Fast Focus Location of Focused Transducer Based on Machine Vision[J]. Acta Metrologica Sinica, 2022, 43(10): 1313-1318.

URL:

http://jlxb.china-csm.org:81/Jwk_jlxb/EN/10.3969/j.issn.1000-1158.2022.10.11 OR http://jlxb.china-csm.org:81/Jwk_jlxb/EN/Y2022/V43/I10/1313

［1］於炜力, 曹永刚, 郑慧峰, 等. 声透镜聚焦相控阵换能器的波束特性研究［J］. 传感技术学报, 2019, 32(7): 991-995.
Yu W L, Cao Y G, Zheng H F, et al. Beam Characteristic Analysis of an Acoustic Lens-Focused Phased Array Transducer［J］. Journal of Transduction Technology, 2019, 32(7): 991-995.
［2］金鹏灿. 相控阵超声场建模及其自动化检测技术研究［D］. 杭州: 浙江大学, 2019.
［3］李荣基, 赵鹏, 王月兵, 等. 球壳换能器电声效率测量方法研究［J］. 计量学报, 2020, 41(12): 1521-1528.
Li R J, Zhao P, Wang Y B, et al. Research on Measurement Method of Electroacoustic Efficiency of Spherical Shell Transducer［J］. Acta Metrologica Sinica, 2020, 41(12): 1521-1528.
［4］徐遨璇, 曹永刚, 郑慧峰, 等. 基于反射探针的聚焦超声测量传感器设计和方法研究［J］. 计量学报, 2021, 42(2): 204-212.
Xu A X, Cao Y G, Zheng H F, et al. Design and Methodology Research of a Sensor Based on Reflection Probe for Focused Ultrasonic Measurement［J］. Acta Metrologica Sinica, 2021, 42(2): 204-212.
［5］姚启才, 汪地, 廖茂生. 基于机器视觉的机械臂智能抓取系统设计［J］. 计量与测试技术, 2020, 47(10): 28-33.
Yao Q C, Wang D, Liao M S. Intelligent Grasping System Design of Robot Arm Based on Machine Vision［J］. Metrology & Measurement Technique, 2020, 47(10): 28-33.
［6］Nguyen T M, Ahuja S, Wu Q M J. A real-time ellipse detection based on edge grouping［C］// IEEE International Conference on Systems, Man and Cybernetics. San Antonio, USA, 2009 : 3280-3286.
［7］Fitzgibbon A, Pilu M, FisherI R B. Direct least square fitting of ellipse［J］. IEEE Transactions on Pattern Analysis and Machine Intelligence, 1999, 21(5): 476-480.
［8］屈稳太. 基于弦中点Hough变换的椭圆检测方法［J］. 浙江大学学报(工学版), 2005, 39(8): 1132-1135.
Qu W T. Chord midpoint Hough transform based ellipse detection method［J］. Journal of Zhejiang University: Engineering Science, 2005, 39(8): 1132-1135.
［9］祝鸿宇, 曾令斌, 石世锋, 等. 工业机械臂多工位作业下的视觉对准技术研究［J］. 航空制造技术, 2020, 63(19): 56-65.
Zhu H Y, Zeng L B, Shi S F, et al. Research on Visual Alignment Technology of Industrial Robotic Arm in Multi-Station Operation［J］. Aviation manufacturing technology, 2020, 63(19): 56-65.
［10］郑启强. 基于视觉引导的工业机器人贴标系统研究［D］. 福州:福建工程学院, 2020.
［11］Meng C, Li Z X, Bai X Z, et al. Arc Adjacency Matrix-Based Fast Ellipse Detection ［J］. IEEE Transactions on Image Processing, 2020, 29(29): 4406-4420.
［12］Maire M, Arbelaez P, Fowlkes C, et al. Using contours to detect and localize junctions in natural images［C］// IEEE International Conference on Computer Vision & Pattern Recognition, Anchorage, USA, 2008, 29: 1-8.
［13］Akinlar C, Topal C. EDCircles: A real-time circle detector with a false detection control［J］. Pattern Recognition, 2013, 46(3): 725-740.
［14］Prasad D K, Chai Q, Leung M, et al. A parameter independent line fitting method［C］// IEEE International Conference on Computer Vision & Pattern Recognition. Providence, USA, 2012: 441-445.
［15］Prasad D K, Leung M K H, Cho S Y. Edge curvature and convexity based ellipse detection method［J］. Pattern Recognition, 2012, 45(9): 3204-3221.
［16］Prasad D K, Leung M K H, Quek C, et al. ElliFit: An unconstrained, non-iterative, least squares based geometric Ellipse Fitting method［J］. Pattern Recognition, 2013, 46(5): 1449-1465.
［17］Prasad D K, Leung M K H, Quek C, et al. DEB: definite error bounded tangent estimator for digital curves. ［J］. IEEE Transactions on Image Processing, 2014, 23(10): 4297-4310.
［18］刘海楠, 赵鹏, 叶晓同, 等. 基于近场声全息的聚焦换能器声场测量方法研究［J］. 计量学报, 2021, 42(6): 780-784.
Liu H N, Zhao P, Ye X T, et al. Research on Sound Field Measurement Method of Focusing Transducer Based on Near-field Acoustic Holography［J］. Acta Metrologica Sinica, 2021, 42(6): 780-784.