The MRE excitation device (100), the excitation section which generates the vibration (110) with, one end is locked, the excitation section (110) extends the excitation section (110) from according to the direction where the vibration is transmitted, the other end connects and has the organism (300) with the excitation section (110) with the transmission section which the organism (300) transmits the axial vibration, is formed from the non-magnetic material (120) with. Frequency of the vibration is 125 hertz or more, amplitude of the vibration is above 0.2mm, the transmission section (120) as for primary frequency of vibration of the normal mode of the axial vibration, the excitation section (110) by from the band of the vibration there is on a high pass side.MRE加振装置(100)は、振動を発生する加振部(110)と、一端部が加振部(110)に固定され、加振部(110)からの振動が伝達される方向に沿って延び、他端部が生体(300)と接続して加振部(110)による縦振動を生体(300)に伝達する、非磁性体から構成される伝達部(120)とを備える。振動の周波数が125ヘルツ以上であり、振動の振幅が0.2mm以上であり、伝達部(120)の縦振動の1次固有振動数は、加振部(110)による振動の周波数帯より高域側にある。
