射线透视照像是无损探伤中广泛应用的方法之一。在射线透照中,对于形状复杂或厚薄相差较大的工件,由于不能选择相同的射线硬度和曝光量,往往需要进行多次透照。因而,费时、费胶片。对于球体、圆柱体类工件,必须采用补偿法,才能使底片得到合适的明暗度。常用的补偿法,存在某些缺点,使用受到限制(见表)。 Radiography is one of the most widely used methods in NDT. Radiographs, for complex shapes or large differences in thickness of the workpiece, due to the same choice of the same hardness and exposure to radiation, often require multiple transillumination. Thus, time-consuming, fee film. For the sphere, cylindrical workpiece, you must use the compensation method, in order to make the film get the appropriate brightness. Commonly used compensation method, there are some shortcomings, the use is limited (see table).