Pulse wave array sensor acquisition system and method

Abstract

The invention provides a pulse wave array sensor acquisition system and method. The acquisition system comprises multiple piezoelectric film sensors. The piezoelectric film sensors are PVDF film sensors arranged in an array mode and are used for converting pulse pressure signals into voltage signals. Array PVDF piezoelectric films are adopted in the acquisition system, the piezoelectric constant is large, variable force response sensitivity is high, the films are light and flexible, preparation is easy, impedance coupling with human tissue is good, mechanical quality factors are low, resistance is low, density is low, and the frequency characteristics of the pulse signals can be met. In addition, the acquisition system can guarantee that information of three positions of cun, guan and chi is completely acquired, more accurate positioning can be achieved, and artificial errors are eliminated. Gradual pressurized measurement can be conducted on wrist positions, and the problems that existing pulse sensors hardly conduct positioning and calibrate floating, centering and sinking are effectively solved. Circuits are simplified, and miniaturization of the circuits can be achieved.

Description

technical field [0001] The invention relates to the technical field of sensors, and more particularly to a pulse wave array sensor acquisition system and method. Background technique [0002] TCM pulse diagnosis has more than 2,000 years of clinical practice, which is one of the essence of the four diagnostic methods of traditional Chinese medicine in my country. Pulse information is of great significance in the clinical aspect of traditional Chinese medicine. In traditional Chinese medicine pulse diagnosis, the technique of pulse detection is complicated, difficult to master and use, and the subjective factors of doctors are also greatly affected, and the diagnostic criteria are different. Due to the lack of assistance in equipment and the lack of objective and quantitative standards in traditional Chinese medicine, the inheritance of traditional Chinese medicine is becoming more and more difficult. For decades, different pulse monitors have been developed at home and abr...

AI Technical Summary

Problems solved by technology

In traditional Chinese medicine pulse diagnosis, the technique of pulse detection is complicated, difficult to master and use, and the subjective factors of doctors are also greatly affected, and the diagnostic criteria are different.

Due to the lack of assistance in equipment and the lack of objective and quantitative standards in traditional Chinese medicine, the inheritance of traditional Chinese medicine is becoming more and more difficult

For decades, different pulse monitors have been developed at home and abroad for the objective study of pulse diagnosis. However, from the current development situation, most of the sensors cannot locate well the three parts of Cun, Guan and Chi used when TCM pulse is measured. , detect the pulse signal according to the three-part nine-waiting method

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