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Noise Countermeasures - Yageo KEMET User Manual

Piezoelectric vibration sensor

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User Guide – Vibration Analysis Setup for KEMET Vibration Sensors
3.4
Fixing the Sensor VS-BV203
Fixing Method
Fixing Description
Adhesive fixing
Double-sided tape
4

NOISE COUNTERMEASURES

4.1
Is There Any Power Supply Noise ?
Using an Oscilloscope or spectrum analyzer it should be possible to see the frequency
spectrum of the signal output. It will become apparent if you have 50/60 Hz mains noise
present. Careful grounding or EMI shielding methods can be deployed to minimize these
effects.
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide.
© KEMET Electronics Corporation • One East Broward Boulevard • Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Apply thin layer
to the entire
bottom surface
Hard and thin
material is
recommended
Figure 7 – FFT Example of Vibration Sensor
Figure 8 – Connection Checkpoint
Pros and Cons
Suitable for high frequency
measurement
Difficult to attach or detach the sensor
High frequency measurement is also
possible (depends on the material of
the tape)
Be careful of changes over time
6

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