Patent ID: 6894636
Filing Date: 2005-05-17
Classification: G01V

Abstract:
1. A system for imaging the contents of a container, the system comprising: an passive imager responsive to received millimetre wave radiation from a reception volume, said imager including at least one receive antenna, wherein the reception volume is smaller than an internal volume of the container, and there is relative movement between the container and the reception volume such that the reception volume moves through the container; a computer system for recording data relating to said received millimetre wave radiation from the reception volume at a plurality of different times during the relative movement between the reception volume and the container, and for combining the data and producing a composite image of the contents of the container; and speed measurement equipment for measuring the speed of the container relative to the receive antenna during at least part of the data recording, and the speed measurement is used as a parameter when creating the composite image.