| 摘要 |
The invention relates to medical electronics and devices for testing the cardiovascular system of human beings. The aim of the invention is to reduce energy consumption, lower costs and improve reliability, interference protection and repeatability of measurements. The inventive method consists in transforming a mechanical oscillation of the coating of a blood vessel into an electrical signal, amplifying and filtrating the oscillation thus obtained, transforming it into a digital form by treating it in accordance with a specified program. The invention makes it possible to release the measured signal from a steady component and transform it into a pulse signal which is width-modulated by an amplified input signal. The width-modulated signal is transmitted to the input of a processor for treatment. The inventive device comprises a measured signal conditioner, an amplifier, a pulse-time modulator embodied for example in the form of a relaxation generator, and a processor of a computing system, all said elements being series connected.
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