The speed sensor is a wide-voltage, high-resolution, short-response speed switch output module. The black code disc can measure the motor speed (motor measured specifications and the code disc are related). The code disc's D-diameter is 4 mm. It can be applied to a motor whose output shaft diameter is 4 mm.

The carriage has two wheels without gears. By using a D-type perforated code disc we can easily mount the code disc on the wheel's rotating axle. Since a 20-line code disc is used and the wagon wheel diameter is 4,7 cm, we can calculate that the minimum resolution detected by the code disc is 3,14*4,7 cm/20=0,74 cm =7,4 mm. It can meet the general accuracy control requirements for the tank wagon's movement.

Technical specifications

• Fits motors with a 4 mm D-shaped shaft.
• 20-line code disc