Imaging system to monitor the pendulum mode of a vibrationally driven torsion balance
作者:
L. I. Winkler,
B. A. Stevenson,
期刊:
Review of Scientific Instruments
(AIP Available online 1997)
卷期:
Volume 68,
issue 11
页码: 4275-4281
ISSN:0034-6748
年代: 1997
DOI:10.1063/1.1148385
出版商: AIP
数据来源: AIP
摘要:
A digital-imaging system based on a personal computer was tested for its ability to track in real time periodic motion with a frequency near 1 Hz. When imaging a vibrationally isolated stationary target, the system displayed a limitation in positional measurement of0.3×10−6 m.Further tests indicate that this limitation arises from environmental vibrations driving the target, even though it is mounted on a vibration-isolation table. This work demonstrates the feasibility of using digital imaging to measure motions other than the (usually very low frequency) torsion motion of a torsion balance, where the ultimate goal is to remove the effects of these motions from the torsion signal of interest. ©1997 American Institute of Physics.
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