POSITION CONTROL DEVICE AND POSITION CONTROL METHOD, OPTICAL DEVICE, AND IMAGE PICKUP APPARATUS

摘要

A position control device includes a position detector that detects a position of an object to be controlled; a target generator that outputs a target velocity and a target position of the object to be controlled; a first calculator that calculates a control amount for causing the object to be controlled to track the target position; a second calculator that calculates a control amount for controlling the velocity of the object to be controlled, to be at the target velocity; a control signal output unit that outputs a control signal according to a total control amount obtained by the first and the second calculators; and a storage unit that stores an attitudinal change correction amount. The second calculator acquires the attitudinal change correction amount stored in the storage unit, adds the attitudinal change correction amount to the control amount to correct the control amount, and outputs the corrected control amount.

主权项

1. A position control device comprising:
a position detector that detects a position of an object to be controlled; a target generator that outputs a target velocity and a target position of the object to be controlled; a first calculator that calculates a control amount for causing the object to be controlled to track the target position; a second calculator that calculates a control amount for controlling the velocity of the object to be controlled, to be at the target velocity; a control signal output unit that outputs a control signal to the object to be controlled according to a total control amount obtained by adding the control amount calculated by the first calculator and the control amount calculated by the second calculator; and a storage unit that stores an attitudinal change correction amount which is a control amount that resists an attitudinal change of the object to be controlled during position control of controlling the object to be controlled to be at a fixed position, wherein the second calculator acquires the attitudinal change correction amount stored in the storage unit, adds the attitudinal change correction amount to the control amount to correct the control amount, and outputs the corrected control amount when the object to be controlled is being controlled to be at the target velocity.