Gyro Sound Issues
Kenyon gyros run on 400 cycles and
it is possible to get contamination in sound and video recording systems. Kenyon
shields their recent power cables and ground them at the gyro end of the power
cable. I have not had interference problems yet. Because the gyros are noisy,
there are limitations with sound recording. A "barney" made out of
Barifoil lead foam insulation might quiet them down. CAUTION, the factory warns
that the gyros need to dissipate heat and a cover could cause overheating with
long running times. Overheating can destroy a gyro. The gyros can transmit mechanical
noise to what ever they are attached to, especially thin metal plates. If you
try to isolate this transmission of noise, don't sacrifice the stiffness of
the mounting the gyro to the camera system. If there is any play, the gyros
won't work as well. The quietest camera blimp we ever built for the CM-3 was
filled with sand. You might try a jacket of baffled tubes of sand (like a down
jacket or sleeping bag) as a sound barney.
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