Title :
The measurement of the piston velocity of a hydraulic actuator
Author :
Voutilainen, Osmo E. ; Lappalainen, Pentti ; Parkkinen, Raimo ; Karras, Matti
Author_Institution :
Electron. Lab., Tech. Res. Center of Finland, Helsinki, Finland
fDate :
6/1/1989 12:00:00 AM
Abstract :
The use of three types of transducers to measure the velocity of the piston shaft of a hydraulic actuator is investigated. The types of transducers are linear magnetic scale, magnetostrictive, and optical rotary encoder. Different methods of calculating the piston velocity from the position information are proposed, and the results of the test measurement are presented
Keywords :
actuators; analogue-digital conversion; hydraulic control equipment; magnetic devices; magnetostrictive devices; permanent magnets; transducers; velocity measurement; hydraulic actuator; linear magnetic scale; magnetostrictive transducer; optical rotary encoder; piston shaft; piston velocity; transducers; velocity measurement; Control systems; Engine cylinders; Feedback; Hydraulic actuators; Magnetostriction; Pistons; Position measurement; Testing; Transducers; Velocity measurement;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
