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实时X射线法——实时X-射线检验迅速方便,可以节约越来越昂贵的X-射线胶片费用。此外,质量较高,因为多向检验可以选出一次辐射无法显现的缺陷最佳照片。典型实时装置的分辨率对高对比细节为1/4～1/2毫米。采用细聚焦(10～15微米)X-射线源和几何放大(一般为12倍),可以大大提高分辨率。另一种放大方法是采用X-射线衍射镜头,将低能X-射线影象非对称放大25倍。 声学法——加深对超声散射和声发射源的了解有助于改进方法。过去认为只有符合于超声波波长的缺陷(典型为几毫米)才能被检测出,现在的情况表明,无论小于或大于缺陷的超声波,对其散射信号分析即可测出微小缺陷。超声成象技术也有所改进。已能进行超声
Real-time X-ray - Real-time X-ray inspection is quick and easy, saving the cost of more and more expensive X-ray film. In addition, the higher quality, because the multi-directional test can choose the best photos of a defect can not be displayed once the radiation. The resolution of a typical real-time device is 1/4 to 1/2 mm high contrast detail. The use of fine focus (10-15 microns) X-ray source and geometric amplification (usually 12 times), can greatly improve the resolution. Another method of amplification is to use an X-ray diffraction lens to magnify the low-energy X-ray image asymmetrically by 25 times. Acoustics - Deepening knowledge of ultrasonic scattering and acoustic emission sources helps to improve the method. In the past, only defects (typically a few millimeters) that matched the wavelength of the ultrasound were detected, and the current situation shows that small or defective defects can be detected by analyzing scattered signals, regardless of whether the defect is smaller or larger than the defect. Ultrasound imaging technology has also been improved. Already ultrasound