Давыдов Дмитрий Владимирович (RU),Егоров Алексей Игоревич (RU),Филимонов Павел Викторович (RU)
申请号：
RU2017112520
公开号：
RU0000174958U1
申请日:
2017.04.12
申请国别(地区):
RU
年份:
2017
代理人:
摘要：
The utility model refers to the measurement technique of bioelectric signals of the human body and can be used in multi-channel digital electrocardiographs. The technical result is to increase the reliability of the biopotential amplifier for multi-channel electrocardiography under real operating conditions. This technical effect is achieved due to the fact that a known biopotential amplifier containing M inputs for connection of M signal electrodes of electrographic leads and two inputs for connecting the reference R-electrode and N-electrode, as well as the M + 2 low-pass filter (LPF), respectively, whose inputs are inputs of said biopotential amplifier, wherein the input of each LPF is connected to a corresponding signal electrode or to an R or N electrode, and a control microprocessor, a universal integrated circuit of the ADC including a programmable generator, M reference current sources each of which is connected to the corresponding positive input of the multiplexer, as well as two scaling resistors parallel to one of which a capacitor is connected, an M + 1 high-resistance resistor is inserted, each of which is switched on between the earth bus and the positive input of the multiplexer, and also the pump circuit from the series-connected capacitor of the pump circuit and the pumping circuit resistor, the second terminal of which is connected to the input o eratsionnogo amplifier biopotential N-electrode biopotential operational amplifier R-electrode, wherein the controlling microcontroller embedded microcontroller further ADC, which is connected to the output of the LPF N-channel electrode, and the output of the operational amplifier of the biopotential of the R-electrode is connected to the second terminal of the second of the said scaling resistors and to the common bus connecting the M minus inputs of the multiplexer to each other. 3 ill.Полезная модель относится к технике измерений биоэлектрических сигналов организма человека и быть может быть использов
