The method of the gimbal mechanism and infrared guidance system and gimbal mechanism

PROBLEM TO BE SOLVED: To provide a gimbal mechanism capable of quickly and accurately controlling an orientation, an infrared guidance device and a control method for the gimbal mechanism. SOLUTION: This gimbal mechanism includes: a first casing 5a making a detecting part 2 turnable around a first axis in a first plane, a first driving part 6a, a first angle detecting part 7a, a second detecting casing 5b making the first casing 5a turnable around a second axis in a second plane, a second driving part 6b, a second angle detecting part 7b, a third casing 5c making the second casing 5b turnable around a third axis in the first plane, a third driving part 6c, a third angle detecting part 7c, a fourth casing 5d making the third casing turnable around a fourth axis in the second plane, a fourth driving part 6d, and a fourth angle detecting part 7d wherein, when the second casing 5b is turned by the third driving part 6c, the detecting pat 2 is turned to cancel deviation in rotating angle, and when the third casing 5c is turned by the fourth driving part 6d, the first casing 5a is turned to cancel deviation in rotating angle. COPYRIGHT: (C)2009,JPO&INPIT