| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a myoelectric measuring instrument capable of stably performing a myoelectric measurement even when providing a stump bag or the like between the skin and a sensor and effectively eliminating disturbance noise. <P>SOLUTION: The myoelectric measuring instrument 1 measures a myoelectric potential from the skin surface of a subject. The myoelectric measuring instrument 1 comprises an electric difference detection means 2 having two detection electrode parts for measuring the myoelectric potential from the skin surface and a reference electrode part for detecting the reference potential of the skin surface, and a signal processing circuit 30 for processing signals outputted from the electric difference detection means 2. The detection electrode part is composed of a conductive electrode capacitively coupled with the skin surface through an insulator. The signal processing circuit 30 has a low-pass filter 31 for receiving signals from the electric difference detection means 2 and removing high frequency components and high-pass filters 32 and 33 for removing low frequency components, and is further provided with an amplification part 34 for amplifying the signals which have passed through the low-pass filter 31 and the high-pass filters 32 and 33. <P>COPYRIGHT: (C)2008,JPO&INPIT |
