The VIB-4a computer vibration and noise measuring instrument adopts the vibration method recommended by ISO/TR7849, and meets the requirements of the national standard GB/T16539-1996 "Acoustic vibration velocity method for determining the power level of noise sources - Measurement for enclosed machines" for measuring instruments. Advanced computer technology is applied to develop a new type of measuring instrument that integrates vibration and noise measurement.  
This instrument is not affected by background noise and environmental reflections when measuring noise, and there is no need to spend a huge amount of money to build a soundproof chamber. Very suitable for online detection of vibration and noise in various electromechanical products such as motors, appliances, refrigerators, etc.

When using the VIB-4 computer vibration and noise measuring instrument for testing, the measuring personnel have the following significant characteristics when using it:

The VIB-4 computer vibration and noise measuring instrument adopts advanced computer technology, controlled by a microcontroller to control all buttons, and switches relevant circuits through analog switches. This greatly reduces mechanical contacts, thus avoiding problems such as loosening and poor contact of mechanical components, and improving the accuracy and reliability of the instrument itself.
Due to the fact that we set the vibration radiation efficiency index curves of motors, appliances, and refrigerators obtained from experiments in the form of a weighted network in the vibration meter, the sound power level of the machine can be directly measured (and any limit within the measurement range can also be alerted for exceeding the standard value).