In this paper. a robust sliding mode control (SMC) based on backstepping technique is studied for a microgyroscope in the presence of unknown model uncertainties and external disturbances using adaptive fuzzy compensator and fractional calculus. At first. the dynamic of microgyroscope is transformed into analogically cascade system to guarantee the application of backstepping design. https://allfixelectricales.shop/product-category/french-door-closing-bar/