High-Accuracy Range Detection Radar Sensor for Hydraulic Cylinders
作者： Serdal Ayhan , Steffen Scherr , Philipp Pahl , Thorsten Kayser , Mario Pauli
DOI: 10.1109/JSEN.2013.2287638
关键词:
摘要: Industrial automation requires highly precise distance measurement sensors. Accurate detection of the piston position is indispensable for control and monitoring hydraulic cylinder applications. Known external integrated solutions are subject to many limitations as example in accuracy, length, or price. A promising approach consists use low-cost radar The developed K-band frequency modulated continuous wave (FMCW) system this paper detects a based on guided propagation signal. dielectric characteristics oil obtained purpose by permittivity methods. Influences cylindrical waveguides well mechanical requirements associated with new investigated. design an adapted oil- pressure-resistant transition between sensor novel calibration method will be described verified under real conditions. At repetition rate 2 kHz, accuracy below 200 μm was achieved 1 m length.
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