Ballistocardiography signal collecting system of improved structure

Abstract

The invention provides a ballistocardiography signal collecting system of an improved structure.The signal collecting system comprises a ballistocardiography signal collecting and conducting device and an extremely-low-frequency vibration signal inductor; the ballistocardiography signal collecting and conducting device comprises a vibration collecting panel, a conducting piece and a base for supplying supporting and installing support for the vibration collecting panel, and the conducting piece is fixedly installed on the surface of the extremely-low-frequency vibration signal inductor; the extremely-low-frequency vibration signal inductor comprises a vibration receiving piece, a piezoelectric film sensing chip and a hollow support used or supporting the vibration receiving piece, and the vibration receiving piece and the support are connected in a matched mode so that the periphery of the vibration receiving piece can be uniformly supported by the support; a cavity B is formed by the bottom face of the vibration receiving piece and a through hole in the support, and the piezoelectric film sensing chip is flatly attached to the bottom face of the vibration receiving piece; a cavity A is formed in the support.The ballistocardiography signal collecting system is simple in product structure, low in cost, high in sensitivity and small in size and achieves full coverage of ballistocardiography signals.

Description

【Technical field】 [0001] The invention relates to the field of ballistocardiogram signal processing, in particular to an improved structure of a ballistocardiogram signal acquisition system. 【Background technique】 [0002] The pulsation and impact of the heart can cause a series of periodic vibrations in the human body. These signals are recorded by sensitive instruments to form a waveform diagram, and then the diagnosis of human diseases is made by observing the waveform diagram, which is the origin of shockcardiography. As early as 1877, there was a document documenting that the beating of the heart can cause body vibrations. In the middle of the 20th century, the research on shockcardiography reached its climax. However, due to the relatively poor science and technology at that time, the recording instruments were cumbersome and complicated to operate. , it is impossible to accurately, efficiently and conveniently produce a cardio-impact map. As a result, there are fewer...

AI Technical Summary

Problems solved by technology

In recent years, with the development of science and technology, especially the improvement of the accuracy of key components and computer computing power, the development of ballistocardiogram signal detection equipment has once again become a worldwide hot spot, but so far no very mature products have appeared

Images