NONDESTRUCTIVE TEST DEVICE USING RADIATION TO DETECT FLAWS IN MATERIALS

摘要

A nondestructive test device for detecting flaws such as boundary separation between the liner and propellant of missile motors and the like. The device includes a rotatable table upon which the motor to be tested is mounted. A horizontal movement carriage is mounted on a vertical movement carriage. Mounted upon the horizontal movement carriage is a radiation source and a detector. The source emits radiation that passes through the motor and is received by the detector. The motor is rotated and defects cause an increase in radiation received by the detector resulting in a deviation from the normal signal. This detected deviation is electronically processed and recorded. A radiation absorber, a rotating slotted helix for providing a radiation window, and a helix angulation control are employed to provide the necessary controls and desired information.