Active surface myoelectricity detection probe adopting optical fiber transmission

Abstract

The invention relates to an active surface myoelectricity detection probe adopting optical fiber transmission. The active surface myoelectricity detection probe adopting optical fiber transmission comprises a power source transformation and management module. The active surface myoelectricity detection probe adopting optical fiber transmission is characterized by further comprising an active probe body, wherein the active probe body comprises a reference electrode, a measuring electrode and a system control center, the system control center selects the measuring electrode and the reference electrode as a measuring pair in a time sharing mode through a single-chip microcomputer, the potential difference of the measuring pair is fed into a differential amplification circuit through an electronic simulation switch so that amplification and filtering can be carried out, and the detection probe transmits collected data to an upper computer through optical fibers in a one-way mode. The active surface myoelectricity detection probe adopting optical fiber transmission can solve the problems in the prior art, coupling interference on electrode wires and data transmission lines can be lowered effectively, the problem of 50 Hz power frequency interference entering from a power supply power line in a coupling mode can be solved, and therefore the needs of practical situations are met.

Description

technical field [0001] The invention belongs to the technical field of biological signal measurement and relates to a detection probe, in particular to an active surface electromyography detection probe using optical fiber transmission. Background technique [0002] EMG signal is a very weak bioelectric signal, and the surface EMG signal recorded on the skin surface is even weaker. Therefore, the most difficult thing to correctly record the surface EMG signal is to suppress the interference signal and amplify the useful signal; the process of measuring the EMG signal There are many interference signals in the system, for example, the main sources of interference are: ECG signal interference, 50Hz power frequency interference, space electromagnetic radiation interference, etc.; the main interference channels include: coupling on electrode wires, coupling on transmission wires, human body induction coupling and so on. For this reason, a surface electromyography detection prob...

AI Technical Summary

Problems solved by technology

Although this mask-type skin quality detection auxiliary device can grasp the measurement position when detecting the facial skin quality, it also has high coupling interference between the electrode wire and the data transmission line, and the 50HZ power frequency interference that is coupled into the power supply line. question

[0005] For this reason, there is a need for a surface electromyography detection probe capable of solving the above-mentioned problems in the prior art, to effectively solve the problem of reducing the coupling interference on the electrode wire and the data transmission line, and reducing the 50HZ power frequency interference that is coupled into the power supply line. so as to meet the needs of the actual situation

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