Quartz Pulse Wave Sensor With a Capacitive Control for Healthcare Solutions

This article describes the design principles of a quartz pulse wave sensor with capacitive control for healthcare solutions. A constructive model of a quartz crystal sensor (QCS) with a frequency output is considered and an algorithm for linearizing the QCS calibration characteristics is presented. An electrical QCS model is constructed and a numerical analysis of control characteristics in the presence of parasitic electrical connections arising from the practical implementation of the principle of capacitive control is carried out. A simulation model of a pulse oscillation sensor based on a QCS with capacitive control is presented and a numerical simulation of the stress-strain state of a corrugated membrane in COMSOL/Multiphysics is carried out. Examples of practical application of pulse wave QCS in systems of sphygmography for determining the parameters of the human cardiovascular system are given.

Automated summary

This article details the design principles of a quartz pulse wave sensor with capacitive control for healthcare solutions, including constructing a model, linearizing calibration, constructing an electrical model, analyzing control characteristics, and presenting practical applications in systems of sphygmography.