| 摘要 |
A process and device are disclosed for verifying the authenticity and/or identifying the spatial structure of an object to be inspected. A layer or surface (6) which is transparent to ultrasonic waves but which reflects or diffracts electromagnetic waves is arranged in the body (4). This layer or surface (6) in the body (5) is locally and time-dependently deformed by the ultrasonic waves according to the form and intensity of the reflected or diffracted ultrasonic waves, and this layer (6) is irradiated at an angle with electromagnetic waves. In the area of the reflected and/or diffracted electromagnetic radiation located under the reflection angle (9) said radiation is sensed and its modification caused by its reflection or diffraction on the layer (6) is evaluated. In order to implement this process, a device is designed so that said layer (6) is arranged in the body (4) and that the device (1) has a source (7) of electromagnetic radiation whose rays are directed towards the layer (6), and at least one radiation receiver (8) is pprovided in the area of the reflected or diffracted electromagnetic radiation in order to evaluate this radiation. |
