PROBLEM TO BE SOLVED: To provide a myoelectric potential measuring device capable of appropriately measuring a myoelectric potential and recognizing a motion of an arm even when all of a plurality of electrodes are not in close contact with the arm.SOLUTION: A myoelectric potential measuring device 110a: (a) measures a myoelectric potential at each of a plurality of electrodes using a bracelet having a plurality of electrodes that come in contact with a users arm, and a presentation part on the external surface (S101) (b) detects a measurement state when the myoelectric potential is being measured (S102) and (c) identifies a suitable electrode vertically below which a part of the users arm is located, of the plurality of electrodes, based on the measurement state, presents information on a presentation part 105 on the back side of the bracelet when the suitable electrode is located on the back side of the users hand, and presents information on the presentation part 105 on the palm side of the bracelet when the suitable electrode is located on the palm side of the users hand (S105).SELECTED DRAWING: Figure 1COPYRIGHT: (C)2017,JPO&INPIT【課題】複数の電極のすべてが腕に密着していなくても適切に筋電位を計測して腕の動作を認識することができる筋電位計測装置を提供する。【解決手段】筋電位計測装置110aは、(a)ユーザの腕に接触する複数の電極と、外表面に提示部とを有する腕輪を用いて、複数の電極のそれぞれでの筋電位を計測し(S101)、(b)筋電位を計測しているときの計測状態を検知し(S102)、(c)計測状態基づいて、複数の電極のうち、鉛直下方にユーザの腕の一部が位置する好適電極を特定し、好適電極がユーザの手の甲側に位置する場合には、腕輪の甲側の提示部105に情報を提示し、好適電極がユーザの手の平側に位置する場合には、腕輪の平側の提示部105に情報を提示する(S105)。【選択図】図1
