  In this paper, the dynamic behavior of a one degree-of-freedom (DOF)
contactless linear slider based on superconducting magnetic levitation is
experimentally analyzed. The device is intended for precision positioning of an
optic mirror in cryogenic environments. Different prototypes of this device
have been tested at cryogenic temperatures (77 K), and their mechanical
behavior characterized in the sliding direction for forced and unforced
oscillations. Experimental results reveal that the slider is self-stable at the
initial equilibrium position and the dynamic behavior fits well an underdamped
harmonic oscillator. Finally, the device showed great potential for horizontal
vibration isolation, acting as a low-pass filter with a resonance at about 0.9
Hz
