multipass welding

This paper presents a systematic study on V-groove welding laser image and the seam recognizing method of multi-pass welding image.

利用小波变换检测信号边缘的优势,对V型坡口焊接激光图像以及多层多道焊激光图像的焊缝识别方法进行了系统的研究,给出了基于小波变换的焊缝识别算法,并提出了多层多道焊拐角跟踪点的识别算法,同时进行了大量的实验研究;分析了多层多道焊接激光图像的特点,在V型坡口识别算法的基础上进行了改进,利用模板匹配技术,实现拐角跟踪点的识别。

Development of a natural logging Gamma-ray instrument based on multi-channel;

基于多道的自然伽马能谱测井仪的研制

In order to improve the performance and decrease the cost of the front-end electronics readout system of the Neutron Wall Detector,a new multi-channel charge to digit conversion(QDC)circuit de- signed by us is introduced briefly in this paper,which mainly consists of 32 channels QAC,a judgment circuit and a A/D converter.

为了满足中子墙探测器对后续能量电子学读出系统的要求并降低成本,本文介绍了一种新型多道电荷-数字转换电路。

A small size and multi-channel wavelength dispersive x-ray fluorescence spectrometer developed is re-ported.

介绍一种新研制成功的小型多道波散型X射线荧光光谱仪,这种仪器采用小功率X光管作激发源,采用对数螺线弯晶进行分光,整机操作由微处理器和PC机控制,具有仪器结构紧凑、环境适应性强、性能价格比好等特点,适用于建材、化工、冶金等行业的生产控制分析。

Finite element simulation of multiple passes equal channel angular pressing process;

等通道转角多道次挤压有限元模拟

The simulation of roll forming with multiple passes was studied by FEM software ABAQUS.

利用ABAQUS软件对多道次辊弯成形数值模拟技术进行了研究。