Patent RU-2734996-C1 (RU)
Title: Multichannel instrument for measurement and analysis of rotor vibration parameters
Inventor: Didur Sergej Petrovich
IPC: G01M13/04
Filed: 2020-02-28
Granted: 2020-10-27
Abstract: FIELD: measurement. 
     SUBSTANCE: use for measurement and analysis of vibration parameters of rotors. Essence of invention consists in that multichannel device for measurement and analysis of vibration parameters of rotors, in which input connector 1 is connected to ADC 3, input connector 2 is connected to ADC 3, input connector 4 is connected to input of phase marking generating module 5, output of which is connected to ADC 3, input connector 6 is connected to input of axial shift module 7, which output is connected to ADC 3, input connector 8 is connected to one of inputs of signal normalization unit 9, output of which is connected to ADC 3, input connector 10 is connected to one of inputs of signal normalization module 11, output of which is connected to ADC 3, input connector 12 is connected to one of inputs of signal normalization module 13, output of which is connected to ADC 3, input connector 14 is connected to one of inputs of signal normalization module 15, output of which is connected to ADC 3, and output of ADC 3 is connected to input of personal computer 16, first control output of module 17 for generation of reference signals and control is connected to control input of axial shift module 7, second control output is connected to control input of signal normalization unit 9, third control output is connected to control input of signal normalization unit 11, fourth control output is connected to control input of signal normalization module 13, and fifth control output is connected to control input of signal normalization module 15, and, in addition, first output of module 17 for generation of reference signals and control is connected to one of inputs of signal normalization unit 9, second output is connected to one of inputs of signal normalization unit 11, third output is connected to one of inputs of signal normalization module 13, and fourth output is connected to one of inputs of signal normalization module 15, input connector 8 is connected to normally open contact of commutator 18 and one of capacitor plates 19 located in module 9 of signal normalization, and movable contact of switch 18 is connected to second coating of capacitor 19 and to input of cascade 20 of buffer interference suppression, output of which is connected to one of inputs of rectifier 21 of precision summing and with normally closed contact of switch 22, wherein the second input of rectifier 21 of precision adder is supplied with signal from first output of module 17 for generation of reference signals and control, output of rectifier 21 of precision adder is connected to normally open contact of switch 22, which movable contact is connected to input of inverter 23 and normally closed contact of commutator 24, normally open contact of which is connected to output of inverter 23, and movable contact is connected to input of filtration amplifier 25, output of filtration amplifier 25 is connected to one of ADC 3 inputs, wherein second control output of module 17 for generation of reference signals and control is connected to controlled contacts of switches 18, 22 and 24 in signal normalization unit 9, input connector 10 is connected to normally open contact of commutator 18 and one of capacitor plates 19 located in module 11 of normalizing signal, and movable contact of switch 18 is connected to second cover of capacitor 19 and to input of cascade 20 of buffer interference suppression, output of which is connected to one of inputs of rectifier 21 of precision summing and with normally closed contact of switch 22, at that, to the second input of the precision adder rectifier 21 a signal is supplied from the second output of module 17 for generation of reference signals and control, output of rectifier 21 of precision adder is connected to normally open contact of switch 22, which movable contact is connected to input of inverter 23 and normally closed contact of commutator 24, normally open contact of which is connected to output of inverter 23, and movable contact is connected to input of filtration amplifier 25, output of filtration amplifier 25 is connected to one of ADC 3 inputs, at that, third control output of module 17 for generation of reference signals and control is connected to controlled contacts of switches 18, 22 and 24 in signal normalization unit 11, input connector 12 is connected to normally open contact of commutator 18 and one of capacitor plates 19 located in module 13 of signal normalization, and movable contact of switch 18 is connected to second cover of capacitor 19 and to input of cascade 20 of buffer interference suppression, output of which is connected to one of inputs of rectifier 21 of precision summing and with normally closed contact of switch 22, wherein the second input of rectifier 21 of precision adder is supplied with signal from third output of module 17 for generation of reference signals and control, output of rectifier 21 of precision adder is connected to normally open contact of switch 22, which movable contact is connected to input of inverter 23 and normally closed contact of commutator 24, normally open contact of which is connected to output of inverter 23, and movable contact is connected to input of filtering amplifier 25, output of filtration amplifier 25 is connected to one of inputs of ADC 3, wherein fourth control output of module 17 for generation of reference signals and control is connected to controlled contacts of switches 18, 22 and 24 in signal normalization module 13, input connector 14 is connected to normally open contact of commutator 18 and one of capacitor plates 19 located in module 15 of signal normalization, and movable contact of switch 18 is connected to second cover of capacitor 19 and to input of cascade 20 of buffer interference suppression, output of which is connected to one of inputs of rectifier 21 of precision summing and with normally closed contact of switch 22, wherein the second input of rectifier 21 of precision adder is supplied with the fourth output of module 17 for generation of reference signals and control, output of rectifier 21 of precision adder is connected to normally open contact of switch 22, which movable contact is connected to input of inverter 23 and normally closed contact of commutator 24, normally open contact of which is connected to output of inverter 23, and movable contact is connected to input of filtration amplifier 25, output of filtration amplifier 25 is connected to one of ADC 3 inputs, wherein fifth control output of module 17 for generation of reference signals and control is connected to controlled contacts of switches 18, 22 and 24 in module 15 of signal normalization. 
     EFFECT: technical result, which can be achieved by means of the proposed invention, is reduced to increase in the rotor parameters measurement accuracy. 
     1 cl, 2 dwg