Linear drive, and method for correcting systematic error of linear drive

A linear drive, comprising:

• a fixed assembly;
• a movable assembly, movably connected to one end of the fixed assembly and the movable assembly capable of being movable in a direction towards or away from the fixed assembly;
• a first force sensor, disposed at one end of the fixed assembly away from the movable assembly and configured for detecting a force acting on the first force sensor from the fixed assembly towards the movable assembly;
• and
• a second force sensor, disposed at one end of the movable assembly away from the fixed assembly and configured for detecting a force acting on the second force sensor from the movable assembly toward the fixed assembly;
• the fixed assembly comprises a motor stator, the movable assembly comprises a motorized motor, and the motorized motor is movably coupled to the motor stator and the motor stator being capable of driving the motorized motor to move;
• the first force sensor is provided at an end of the motor stator away from the motorized motor, and the second force sensor is provided at an end of the motorized motor away from the motor stator;
• the movable assembly further comprises a movable platform, the movable platform is fixed to an end of the motorized motor away from the motor stator, and the second force sensor is disposed on a side of the movable platform away from the motor stator;
• and
• the fixed assembly further comprises a fixed platform and a support frame, the support frame is fixedly disposed at one end of the motor stator away from the motorized motor, the fixed platform is disposed at one end of the support frame away from the motor stator, and the first force sensor is disposed between the fixed platform and the support frame.