A system for monitoring of blower vibrations

摘要

The system according to the invention for monitoring of blower vibrations comprises at least a velocity sensor - data entry module, at least an eddy current probe - data entry module, a memory module, a reference voltage circuit, and a control module. The control module comprises a controller chip stm32f047 and its peripheral circuit. The velocity sensor - collector module is connected to the input of a multiplexer, while the eddy current probe - collector module with both the output of a smoothing -, filter - and an amplifier circuit as well as with the input of the multiplexer is connected. The input of the smoothing -, filter - and an amplifier circuit is connected to the pwm - output port of the connected control chip. The output of the multiplexer is connected via a differential amplifier circuit connected to the input of a switching module, whose output is connected both to the input of a lower frequency filter module as well as with the input of a high frequency filter module is connected, the output of the lower frequency filter module and the output of the high frequency filter module with an a / d - port of the control chip are connected. This system is on the basis of a digital high power control unit is operated and makes possible a real time - measurement of oscillation parameters of the bearing and the rotary shaft of a blower during its operation.n="44"