DocumentCode
2276719
Title
Active damping control of a torsion pendulum by radiation pressure
Author
Chen, Sheng-Jui ; Pan, Sheau-Shi ; Wu, Jeah-Sheng
Author_Institution
Center for Meas. Stand., Ind. Technol. Res. Inst., Hsinchu
fYear
2008
fDate
8-13 June 2008
Firstpage
132
Lastpage
133
Abstract
In this paper, we describe the experiment of using radiation pressure to actively damp a strip torsion pendulum. The radiation source is a 1.5 W Nd:YAG laser with an actively controlled variable attenuator. By controlling the power of the laser, force of nano-newton scale can be generated and used to damp the resonant oscillation of the pendulum. We also quantitatively measured the force due to the radiation pressure. The result is in good agreement with the theoretical prediction.
Keywords
damping; force measurement; pendulums; radiation pressure; strips; torsion; Nd-YAG laser; active damping control; actively controlled variable attenuator; force measurement; power 1.5 W; radiation pressure; resonant oscillation; strip torsion pendulum; Attenuators; Damping; Force control; Force measurement; Laser theory; Optical control; Power generation; Power lasers; Pressure control; Strips;
fLanguage
English
Publisher
ieee
Conference_Titel
Precision Electromagnetic Measurements Digest, 2008. CPEM 2008. Conference on
Conference_Location
Broomfield, CO
Print_ISBN
978-1-4244-2399-6
Electronic_ISBN
978-1-4244-2400-9
Type
conf
DOI
10.1109/CPEM.2008.4574688
Filename
4574688
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