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Operation
General.
The Automatic Vibration Exciter Control Type 1018 is specially designed
to be controlled directly from a velocity type of vibration pick-up having
a sensitivity of 96.3 m V sec/inch, or from an accelerometer with associated
cathode follower the sensitivity of which should be 10 m V /g, (both sen-
sitivities are specified in peak voltage and peak vibration units), or a
combination of both the above mentioned types of pick-up. Using ph::k-ups
Special Purpose
Connector
Oscillator Output
1018
Fig. 5. Terminals and mechanical outputs from the rear of the 1018.
Fuse
with the sensitivities
specified,
the meter provides direct readings on the
acceleration,
displacement, or velocity scales.
However,
if an accelerometer
and cath9de follower combination is used with a sensitivity other than
10 mV/g, it is necessary to use a capacitor output
standardizer,
with the
accelerometer, or to vary the cathode follower output to achieve the required
sensitivity.
14
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