Abstract:
Non-contact absolute distance measurements are desirable in several industrial processes. For this purpose, the interferometric Self-Mixing Super Luminescent Diode techni...Show MoreMetadata
Abstract:
Non-contact absolute distance measurements are desirable in several industrial processes. For this purpose, the interferometric Self-Mixing Super Luminescent Diode technique represents a unique approach for simplicity and robustness. Thanks to optical feedback, large interference fringes, even with diffusive targets and without utilizing high-sensitivity detectors, can be obtained rejecting any stray-light. To establish the absolute target position, the most common approach is to process the interference fringes envelope by the zero-crossing technique. In this paper, we propose to process the photogenerated signal by a custom modified envelope detector to reduce the measurement uncertainty.
Published in: 2021 IEEE 6th International Forum on Research and Technology for Society and Industry (RTSI)
Date of Conference: 06-09 September 2021
Date Added to IEEE Xplore: 15 November 2021
ISBN Information: