Long Stroke Hydraulic Cylinders Part 2 – Replacing Failed Rod-Type Sensors.

Rod based magnetostrictive position sensors are historically one of the primary types of feedback sensors used on hydraulic or pneumatic cylinders where high accuracy was of primary concern.  The sensor (often called an “LDT” or “MLDT”) incorporates a stainless steel tubular probe (ie. “the Rod”) and is surrounded by a short toroidal magnet installed in a counterbore in the piston. Magnetostrictive sensors can consume a fair amount of power and are not the most mechanically

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