Title :
Alignment mirror mechanisms for space use
Author :
Jau, Bruno M. ; McKinney, Colin M. ; Smythe, Robert F. ; Palmer, Dean
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
The paper describes an optical Alignment Mirror Mechanism (AMM), and discusses its control scheme. The mirror´s angular positioning accuracy requirement is ± 0.2 arc-sec. This requires the mirror´s linear positioning actuators to have a positioning accuracy of ± 109 nm to enable the mirror to meet the angular tip/tilt accuracy requirement. Demonstrated capabilities are ± 35 nm linear positioning capability at the actuator, which translates into ± 0.07 arc-sec angular mirror positioning accuracy.
Keywords :
actuators; attitude control; avionics; mirrors; position control; angular tip-tilt accuracy; mirrors angular positioning; mirrors linear positioning actuators; optical alignment mirror mechanism; Accuracy; Actuators; Assembly; Brushless DC motors; Mirrors; Optical interferometry;
Conference_Titel :
Aerospace Conference, 2011 IEEE
Conference_Location :
Big Sky, MT
Print_ISBN :
978-1-4244-7350-2
DOI :
10.1109/AERO.2011.5747381
