Design and implementation of a multi-channel pulse signal acquisition system

In traditional Chinese medicine, wrist pulse signals have been used for syndrome differentiation and disease diagnosis for thousands of years. Because of the complication of pulse diagnosis, one should collect pulse signals at different locations under different pressures for comprehensive analysis. However, although a number of pulse acquisition systems had been reported, conventional pulse signal acquisition systems, however, usually have a single sensor, and are large in size and unfriendly to users, making the sampling procedure very time-consuming. In this work, we propose a novel pulse signal acquisition system which can simultaneously capture multichannels of Cun, Guan, and Chi pulse signals. The system consists of the mechanism structure, sensor array, a set of circuit, and a software system. With the introduction of sensor array, our system can shorten the sampling time and ensure the repeatability while compared with the single sensor - based pulse signal acquisition system.