闪光灯热激励红外热波成像无损检测设备及应用

摘要

The infrared thermographic nondestructive equipment based on flash thermal excitation device was introduced.The system adopts the independent development of uncooled infrared thermal imager, the lamp symmetrical arrangement and reflective shade design makes the uniformity of the flash energy increase,the signal-to-noise ratio of infrared image is improved by infrared image denoising and data reconstruction.Independent thermal excitation power supply includes a variety of pulse width control method.The control software of the system can perform thermal wave image acquisition and digital processing to enhance image quality,and the interface adopts touch screen control,which is portable and compact.The system facilitates the detection of in-service and in-situ.%介绍了基于闪光灯热激励的红外热波无损检测设备,该系统采用自主研制的非制冷型热像仪,通过灯管对称排列与反光灯罩设计使得闪光灯能量的均匀性得到提高,通过红外图像降噪处理和数据重建使得红外图像信噪比得到提高.研制的热激励电源包括多种脉冲宽度控制方式,系统的控制软件可对热波图像进行采集及数字处理,增强了图像质量;操作界面采用触屏控制,使用方便.该台式系统具有高能量和完整的图像处理能力,设备便携、结构紧凑,利于在役及原位检测.