Electronic device for measuring blood-pressure
A blood pressure measuring device and electronic technology, which are applied in the fields of blood vessel evaluation, electrical digital data processing, special data processing applications, etc., can solve the problem that the overpressure protection circuit cannot set two or more overpressure points, and the pulse wave signal detection circuit is complicated. , poor adaptability of pressure sensors, etc., to achieve the effect of improving the ability of common mode rejection ratio, accurate setting, and enhancing safety assurance
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[0027] The present invention will be described in further detail below in conjunction with accompanying drawing:
[0028] see figure 1 As shown, the circuit structure of the inventive device mainly includes main components such as cuff pressure, pulse signal, signal detection circuit, backup overpressure protection circuit, air pump and deflation valve control circuit, analog-to-digital conversion and digital system circuit, among which Specific signal path: the cuff 1 is connected to the first pressure sensor 2 and the second pressure sensor 9 respectively, wherein the main channel is that the output of the first pressure sensor 2 is connected to the instrument amplifier 3 to complete the amplification of the static cuff pressure, and the instrument amplifier 3 One of the output ends is directly connected to the analog-to-digital converter 8 after appropriate voltage division and filtering to realize the data acquisition of the static cuff pressure, while the other pulse wave...
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