GGG: results from first generation prototype (III)
Measurement of
quality factor Q of the system (at 2.5 Hz spin):
with damping
system turned off, raw data show no appreciable growth in 3 hr run at 2.5 Hz
In a cleaner run,
undamped
whirl motion at 0.74 Hz shows growth compatible with Q
@ 5000
(Q @ 2000 measured for the suspension alone at larger amplitudes)
(GG target in
space requires Q=20000)
Proof that whirls are no limitation
and experimental value of Q (measured with full system running) close to requirement !!!
