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Accelerometer Selection and Connection
Accelerometer mounting
The UV-15 is a vibration meter designed for use with piezoelectric acceler-
ometers or accelerometers with integrated preamplifi er. Other types of ac-
celerometers such as electrokinetic accelerometers cannot be used with this
product due to different structure. Choose a suitable accelerometer according
to the measurement requirements including measurement range, frequency
range, and environmental conditions. The accelerometer mounting method has
a signifi cant effect on the reliability of measurement data, and it will greatly
affect the contact resonance frequency. The advantages and disadvantages
of various mounting methods are outlined below. Refer to this information
when making your selection.
Rigid screw mounting
This mounting principle assures optimum fre-
quency response characteristics. The mounting
surface should be perfectly smooth, and the screw
holes must be drilled in such a way as to assure
perfect perpendicularity of the accelerometer.
Insulation attachment mounting
This mounting principle is used when electrical
insulation between accelerometer and measure-
ment object is required. The contact resonance
frequency will be lower than with rigid screw
mounting. Regarding the mounting surface and
the screw holes, the same precautions as for rigid
screw mounting apply.
Magnet attachment mounting
Because the contact resonance frequency will
be quite low, this principle is mainly suited for
vibration measurements in the medium to low
frequency range. The maximum acceleration that
can be measured depends on the accelerometer
mass.
Measurement
object
Accelerometer
Screw
Insulation
attachment
Accelerometer
Measurement
object
Measurement
object
Accelerometer
Magnet
attachment
Summary of Contents for UV-15
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