| 摘要 |
PROBLEM TO BE SOLVED: To suppress the reduction in detection accuracy of a locked/unlocked state because locking/unlocking of a lock device is operated many times. ! SOLUTION: An inventive detector is equipped with a strike box in which a recess is formed, and detects a locked/unlocked state of a lock device which is locked due to entrance of a movable body into the recess. The detector includes: a first electrode plate and a second electrode plate provided opposed to each other so as to form a gap through which the movable body approaches into the recess; a dielectric constant variable member for changing a dielectric constant between the first electrode plate and a second electrode plate according to an entrance state of the movable body into the recess; a measurement part for measuring the impedance between the first electrode plate and a second electrode plate; and a control part for detecting the locked/unlocked state of the lock device according to the impedance measured by the measurement part. ! C |
