BISOPE series 38 Instrument level difference between Vibrometer vibrati...

BISOPE series 38- Instrument level difference between Vibrometer (vibration meter) and FFT (frequency analyzer; multi-channel vibration analyzer)

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Unlike temperature measurement, where you can select only Celsius or Fahrenheit and press a button, you need to know a lot about 'vibration' before measuring. How to select units and how far is the frequency range? What are the types of sensors and how to attach them? Also where? in which direction? Everyone should know how to measure. As a metaphor, 'knowledge is something that is easy for those who know it, unlike wisdom that is difficult even if you know it.' If you know about the vibration, it is easy to measure the selectivity of the instrument.

 

Distinct difference between vibrometer (vibrometer and frequency analyzer FFT vibration analyzer)

 

Recent vibrometers that can perform simple spectrum frequency analysis and trend storage are being sold at low prices, but in general, vibrometers do not have as precise or diverse functions as FFT (vibration frequency analyzer). Therefore, it is necessary to know the practical optimal knowledge that can identify these differences, and refer to the following.

 

item	vibrometer	Frequency analyzer (FFT, multi-channel vibration analyzer)
Appearance
output		​
Types and uses of instrumentation	Magnet-attached or probe-type machine surface vibration measurement, machine condition management	Select the number of simultaneous measurement channels, whether to measure FRF (resonance), machine diagnosis, long term recording (DAQ), rotor dynamics, front-end or hand held, for Labs and machine analysis
Sensor selection	-The magnet attached type is better than the probe stick type because measurement stability and high frequency are possible. -Sensitivity modifiable instrument (high sensitivity, high impact measurement possible) -Sensitivity modifiable instrument (high sensitivity, high impact measurement possible)	-For low frequency detection (using displacement sensor and DC sensor, or using acceleration of 500mV/g or higher)   -General type acceleration sensor (100mV/g)   -High impact acceleration sensor (10mV/g)
Unit

 

This data is very realistic and it is the result confirmed in the actual domestic industrial field, but it can be subjective and biased, so please refer to it.

 https://blog.naver.com/vs72

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