Sensor System for Wireless Bio-Signal Monitoring

Following sensor system, described in this article is composed of portable units, intended for in-time wireless measurement and evaluation of electrical activity, produced by skeletal muscles. It brings a lot of advantages to biomedical electronics and medical care. In order to optimize the performance of novel proposed smart biomedical instrument we have focused on measurement of the known electromyography (EMG) signal characteristics at periodic muscle motion with constant load (physical exercise). Except for very precise measurement features, which characterize this device (high gain, low noise, wireless data transfer, multi-probe measuring), some special features as low voltage and ultra-low power consumption were reached by application of the described amplifier in order to achieve its longer performance.