For maintaining constant tension when using a brake for producing unwind tension.Also used when using a clutch for rewind tension. When target is within range the LED Status Indicator glows continuously. Uses Power Supply S90MPS-24 (See category - Power Supplies). Sensor measures diameter of the roll and sends a 0-10V DC signal to power supply. Torque is automatically varied as roll size changes to keep constant tension.
A very active solar powered robot. Educational build yourself kits.Can cover up to a meter (3.3 feet) distance in under 2 minutes. Solar powered, light-sensing directional optics (eyes) and a pair of obstacle avoidance sensors. Directed phototropic or light-seeking behavior - traces outlines around shadows. Everything required is included (high-quality printed circuit board, optics, motors). 12 page instruction manual with over 26 illustrations and images.
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