Improved Design of FSMA Inchworm Actuator

Introduction There is great demand for new, compact, but powerful actuators in a variety of industries which can replace heavy actuators, such as the hydraulic actuator and the electrical motor with gear box. Technology description Researchers at the UW have developed an improved design of a ferromagnetic shape memory alloy (FSMA) inchworm actuator based on a hybrid mechanism and FSMA composite springs. The hybrid mechanism is based on a stress-induced martensitic phase transformation produced by a magnetic field gradient, which enhances the displacement. Business opportunity The design will lead to a lighter weight actuator with a larger blocking and pushing force. Stage of development Initial data and a working prototype exist for this technology. Intellectual property position This technology is available for licensing. The UW is currently reviewing this technology for worldwide patent protection.

Type of Offer: Licensing



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