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Description:
The friction-free
moving elements in CEC’s 4-131 Vibration
Transducers assure long life and reliability.
Designed for industrial applications on fixed
turbines, you can use this instrument in turbine
hot sections where high temperatures cause
problems with other transducers. The system
is simplified due to the low impedance, high
level output that can drive AC meters, recorders,
and control electronics without using special
amplifiers.
The frictionless design also
allows measurement of extremely low vibration
levels, critical when monitoring precision
balanced turbine systems. The low level is
limited only by system noise.
These transducers use a seismic
mass magnet suspended by springs and a coil
attached to the case. The output signal results
from relative movement between the magnet
and coil when the case vibrates. The air damped
system operates above its natural frequency,
so the output signal is proportional to velocity.
The sealed case prevents damage to the instrument
when used in difficult environments.
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