242 actuator lvdt operation, 242 actuator lvdt operation 18 – MTS Series 242 Actuators User Manual
Page 18
Series 242 Actuator Product Information
18
242 Actuator LVDT Operation
Introduction
242 Actuator LVDT Operation
The internally mounted LVDT provides an indication of the actuator piston rod
displacement.
The LVDT is an electromechanical device that provides an output voltage which
is proportional to the displacement of a moveable core extension. The core
extension is mounted inside the hollow piston rod and moves as the piston rod
moves. The LVDT coil is secured to the pedestal base by a locking collar. The
core extension is positioned in the LVDT coil to provide a zero reference point,
and is locked in place with a locking setscrew.
As the piston rod moves during operation, the output voltage from the LVDT
indicates how far the piston rod has moved from the zero reference point.
Locking
Screw
Retainer
Core
LVDT Core
Extension
Hollow
Piston Rod
LVDT Coil
Locking
Collar
Pedestal
Base
LVDT
Connector
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