The best way of detecting the maximum number of Potential Failure Modes. Constant Percentage Bandwidth (CPB) analysis has proven itself to be an indispensable tool for detection of mechanical faults.
Features that include simplicity of operation, good reproducibility, and optimum resolution, have made it one of the most reliable methods for detecting the widest possible range of machine faults at an early stage of development.
The measurement gives a constant relative bandwidth on a logarithmic frequency scale i.e. the bandwidth of each spectrum bar is a percentage of the centre frequency.