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Please use this identifier to cite or link to this item:
http://hdl.handle.net/2014/34901
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| Title: | Optical Pathlength Control Experiment on JPL Phase B Testbed |
| Authors: | Rahman, Z.
Spanos, J.
O'Brien, J.
Chu, C. |
| Issue Date: | 19-Apr-1993 |
| Citation: | La Jolla, California, USA |
| Abstract: | An experimental implementation of a nanometer level optical pathlength control for large baseline space interferometry is presented. The pathlength compensation system is installed on a large flexible experimental truss, thus structural motions play a dominant role in the control system design. The associated control structure interaction problem is addressed to maintain the optical pathlength within the prescribed variation of 10-15 nanometer rms. By a successful blend of a structural control for damping augmentation and a direct pathlength control for the pathlength compensation, the optical pathlength variation has been maintained within 6 nonometer rms under the laboratory ambient disturbance and within 9 nonmeter rms under a severe forced resonant disturbance. |
| URI: | http://hdl.handle.net/2014/34901 |
| Appears in Collections: | JPL TRS 1992+
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