A Current-Mode Analog Front-End for Capacitive Length Transducers in Pneumatic Muscle Actuators
Guido Di Patrizio Stanchieri,
Andrea De Marcellis,
Marco Faccio
et al.
Abstract:This paper reports on the design, implementation, and characterization of a current-mode analog-front-end circuit for capacitance-to-voltage conversion that can be used in connection with a large variety of sensors and actuators in industrial and rehabilitation medicine applications. The circuit is composed by: (i) an oscillator generating a square wave signal whose frequency and pulse width is a function of the value of input capacitance; (ii) a passive low-pass filter that extracts the DC average component o… Show more
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