Load generating unit for testing actuator and load simulator for testing actuator

A load simulator for testing an actuator, comprising:

• a first permanent magnet and a second permanent magnet spaced apart from each other;
• a third permanent magnet arranged in a row with the first permanent magnet and the second permanent magnet between the first permanent magnet and the second permanent magnet;
• and
• a first link passing through central axes of the first permanent magnet and the second permanent magnet to be penetrated to a central axis of the third permanent magnet and be connected to the actuator,
• wherein the third permanent magnet and the link are displaced in a length direction of the first link by a magnetic force,
• further comprising:
• a second link disposed parallel to the first link, one end of the second link being connected to the actuator;
• and
• a moment arm of which one end is rotatably coupled to the first link and the other end is rotatably coupled to the second link,
• wherein the moment arm rotates around a middle portion of the moment arm,
• wherein a displacement of the second link is increased than a displacement of the first link due to a rotational operation of the moment arm.