Research Article
Analysis and Experimental Study on Dynamic Behavior of Stepper-Actuated Dual-Axis Data Transmission Antenna
| | Parameter symbol | Physical meaning | Value | Unit |
| | Phase resistance | 6.5 | | | Phase inductance | 30 | | | Amplitude of two-phase current | 0.6 | | | The subdivisions number | 8 | — | | Mechanical step angle | π/100 | | | Rotor teeth | 50 | — | | Motor rotor inertia | 0.0001 | | | Viscous damping factor of the motor | 0.02 | | | Electromagnetic moment coefficient | 0.16 | | | Deceleration ratio | 100 | — | | — | Total quality of the antenna | 25 | | | — | Rotating inertia driven by x-axis motor | 0.34 | | | — | Rotating inertia driven by y-axis motor | 0.0925 | | | Rayleigh damping coefficient | 0.001 | — | | Rayleigh damping coefficient | 0.0005 | — |
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