EMG signal collector

Abstract

The invention provides an EMG (Electromyographic) signal collector, which comprises a central processing unit, a signal modulation circuit, a voltage detection circuit, a signal conversion circuit and a memory, wherein the signal modulation circuit, the voltage detection circuit, the signal conversion circuit and the memory are connected with the central processing unit; the signal modulation circuit is connected with an EMG collecting electrode; and the signal conversion circuit is also connected with a USB (Universal Serial Bus) interface. The EMG signal collector has the advantages that EMG signal reference resources are greatly reduced; the use convenience of the device is improved; the use is convenient and flexible; and the interference of the collected EMG signals is little.

Description

technical field The present invention relates to the field of electronic circuits, in particular to an EMG signal collector. Background technique Electromyography (EMG) is the temporal and spatial superposition of motor unit action potentials (MUAPs) in numerous muscle fibers. Surface electromyography (SEMG) is the combined effect of superficial muscle EMG and electrical activity on the nerve trunk on the skin surface, which can reflect neuromuscular activity to a certain extent; compared with needle electrode EMG, SEMG is non-invasive in measurement , non-invasive, simple operation and other advantages. Therefore, SEMG has important practical value in clinical medicine, ergonomics, rehabilitation medicine and sports science. With the development of detection technology and signal processing means, using SEMG instead of needle electrode EMG for comprehensive clinical non-destructive diagnosis has become one of the hot issues in biomedicine and medical research. The SEMG ...

AI Technical Summary

Problems solved by technology

The obvious disadvantages of this method are as follows: (1) Special instruments are required to complete the signal acquisition, and the application occasions are limited, such as the SEMG of the limbs of athletes in sprinting cannot be collected; (2) Due to the connection of wires, when the limbs move, it is easy to cause electrodes The relative movement between the skin and the skin affects the acquisition results; (3) The power supply is obtained after processing by the mains, which introduces a large power frequency interference and increases the difficulty of data processing; (4) If the wire is long, it is very easy to introduce Other disturbances in the environment, such as electromagnetic interference, etc.

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