Fluid-filled type actuator has indexing application unit and control unit (60). Indexing application unit contains the fluid-filled bag and compressing member for being sealed with fluid. Compressing member contain installation the fluid-filled bag of what can mover (31), with attract by being excited can mover magnetic force generating unit. Control unit (60) by among low frequency signal (LFS) and high-frequency signal (HFS) any one by magnetic force generating unit excitation. When magnetic force generating unit is excited because of low frequency signal (LFS), can mover fluid-filled bag formation export bulge. When magnetic force generating unit is excited because of high-frequency signal (HFS), can mover output compared with magnetic force generating unit because low frequency signal is excited when high thermal energy.流體封入式致動器具備變位單元與控制部(60)。變位單元含有封入有流體之流體封入袋與壓縮元件。壓縮元件含有安裝於流體封入袋之可動子(31)，與藉由被勵磁來吸引可動子之磁力產生部。控制部(60)藉低頻信號(LFS)及高頻信號(HFS)之中任一者來將磁力產生部勵磁。磁力產生部因低頻信號(LFS)而被勵磁時，可動子在流體封入袋形成輸出膨脹部。磁力產生部因高頻信號(HFS)被勵磁時，可動子輸出較磁力產生部因低頻信號被勵磁時高的熱能。
