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首页> 外文期刊>IEE Proceedings. Part A >Arc voltage sensor for monitoring of penetration in TIG welds
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Arc voltage sensor for monitoring of penetration in TIG welds

机译：电弧电压传感器，用于监测TIG焊缝的熔深

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摘要

This paper describes the development of an arc voltage sensor for the measurement of the degree of penetration in tungsten-inert gas (TIG) welds. It is shown that the rate of change of the are voltage is directly related to the rate of movement of the weld pool surface. Weld penetration occurs when the surface of the weld pool falls. The sensor also detects the frequency of induced weld pool oscillations, which occur in one of two well defined modes according to the degree of penetration present. Spectral analysis of the voltage data, using the fast Fourier transform (FFT), provides a means of measuring weld bead size once full penetration has been detected. The sensor may be used to give closed loop computer control of bead size by varying the welding parameters.
机译：本文介绍了用于测量钨极惰性气体（TIG）焊缝熔透度的电弧电压传感器的开发。结果表明，交流电压的变化速率与焊池表面的运动速率直接相关。当焊池表面掉落时发生焊缝熔深。传感器还检测感应熔池振荡的频率，该频率根据存在的熔深程度以两种定义明确的模式之一发生。使用快速傅里叶变换（FFT）对电压数据进行频谱分析，一旦检测到完全熔透，即可提供一种测量焊道尺寸的方法。该传感器可用于通过改变焊接参数对焊道尺寸进行闭环计算机控制。

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