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Abbreviations AlNiCo

Abbreviations AlNiCo Aluminum Nickel Cobalt DM Demonstrator Model EDM Electrical Discharge Machining FEM Finite Element Method FH Flexible Hinge MEOP MERTIS Entrance Optics MERTIS Mercury Radiometer and Thermal Infrared Spectrometer MMO Mercury Magnetospheric Orbiter MPO Mercury Planetary Orbiter MRAD MERTIS Radiometer Focal Plate and Slit MSOP MERTIS Spectrometer Optics MSTS MERTIS Short Term Shutter NdFeB Neodymium Iron Boron OPAMP Operational Amplifier SmCo Samarium Cobalt VCA Voice Coil Actuator iv

Notations aF H Aspect Ratio of the Flexible Hinge B Magnet Field BHmax Maximum Magnetic Energy Product b Width of the Flexible Hinge c Spring Constant cH Heat Capacity D Damping Ratio d Helmholtz VCA Clearance DC Coil Diameter dC Coil Wire Diameter dL Magnet Length dM Magnet Diameter E Young’s Modulus e Error Signal EV CA Total VCA Energy F Dynamic Force v