Identification and/or sensor system for contactless measurement using remote operation by radio

摘要

The system has a transmission and reception device (2,3) which transmits interrogation radio signals to an identification and/or sensor device (5) and receives response signals back from it. The identification and/or sensor device contains delay lines (6) for determining at least one parameter. The delay lines have a sufficiently long delay to avoid detection problems. The delay lines can operate with solid body waves, vol. waves, Lamb waves, sound waves, magnetostatic waves or electromagnetic waves.