User Guide – Vibration Analysis Setup for KEMET Vibration Sensors
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide. 1
© KEMET Electronics Corporation • One East Broward Boulevard • Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
Vibration Analyses Setup
for KEMET Vibration Sensors
User Guide
Rev. 1.1
DEC 2021
User Guide – Vibration Analysis Setup for KEMET Vibration Sensors
The above information is believed to be correct but does not purport to be all inclusive and must be used only as a guide. 2
© KEMET Electronics Corporation • One East Broward Boulevard • Fort Lauderdale, FL 33301 USA • 954-766-2800 • www.kemet.com
1 VIBRATION SENSOR SETTING PROCEDURE
1.1 Identification of Sensor Installation Location
KEMET vibration sensors should be placed within the system to maximum exposure to
potential vibration. Attention to the direction of vibration should also be taken care of by the
placement of the sensors. The three main modes of vibration that we encounter are rotational,
longitudinal and horizontal. Please ensure that your choice and placement of the vibration
sensor is suitable for the modes and frequencies that you expect may occur.
1.2 Selection of Mounting Method
Depending on the device you have selected, you have several options on how to affix the
sensor to your system. These range from mechanic bolt options to strong adhesive tapes.
If adhesives are to be selected, please ensure that your selection will not fail under normal
operating conditions. For example, epoxy resin can crack or fatigue and silicon adhesive can
dampen the motion of vibration. Often it is better to select a thin but very sticky adhesive tape.
1.3 Noise Confirmation and Countermeasures
As with any accurate analogue sensor, care must be taken with regard to Signal to Noise
ratios, so please pay particular attention to suitable signal conditioning with regard to power
supplies and the output signal of the sensor.
1.4 Threshold Setting
Once you have positioned your sensor within the system to maximize the exposure to potential
vibration, KEMET recommends that you employ analog or software differential signaling
techniques in order that "normal" levels of vibration can be differentiated from "abnormal" or
unexpected vibrations.
1.5 Final Verification
To conclude the setup, obtain confirmation of reproducibility and variation, and complete
appropriate verification of threshold.
2 IDENTIFICATION OF SENSOR INSTALLATION LOCATION
2.1 Sensor Mounting Direction
The direction in which the vibration increases changes, depends on the type of abnormality.
ISO recommends mounting the vibration sensor in the axial, vertical, and horizontal
directions of the measurement target.
If you want to install the vibration sensor in one place only, select either axial, vertical or
horizontal. Alternatively, install it in the direction in which the vibration of the measurement
target increases.