PROBLEM TO BE SOLVED: To provide a biological signal measuring device which is capable of measuring contact resistance with high precision.SOLUTION: The biological signal measuring device includes a voltage source, a measuring electrode, a resistor, a first amplifier and a neutral electrode. The measuring electrode is connected to the voltage source and comes into contact with a living body. The resistor is connected between the voltage source and the measuring electrode. The first amplifier amplifies an electric potential between the resistor and the measuring electrode. The neutral electrode comes into contact with the living body.COPYRIGHT: (C)2013,JPO&INPIT【課題】接触抵抗を高精度に測定することが可能な生体信号測定装置を提供すること【解決手段】本技術に係る生体信号測定装置は、電圧源と、測定電極と、抵抗器と、第1の増幅器と、ニュートラル電極とを具備する。測定電極は、電圧源に接続され、生体に接触する。抵抗器は、電圧源と測定電極の間に接続される。第1の増幅器は、抵抗器と測定電極の間の電位を増幅する。ニュートラル電極は、生体に接触する。【選択図】図1
