Method for tuning the resonant frequency of crossed-flexure pivot galvanometers
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United States of America Patent
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-
Jul 24, 2001
Grant Date -
N/A
app pub date -
Oct 29, 1999
filing date -
Oct 29, 1999
priority date (Note) -
Expired
status (Latency Note)
Importance
Abstract
A stator is adjustably attached to the frame of a crossed-flexure pivot galvanometer. The stator acts on a permanent-magnetic rotor, having radially facing poles, causing the rotor to torsionally oscillate, which causes the rotor to be displaced from an axis of rotation along a line of displacement. The resonant frequency of the galvanometer is controlled by adjusting the centering of the stator along a line between the radially facing poles of the permanent-magnetic rotor. With this adjustment, as the stator is brought closer to the magnet along the line between the radially facing poles, the frequency-lowering effect is maximized. As the stator is move away from the magnet along the line of displacement, the frequency-lowering effect is minimized.
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