30:1 Metal Gearmotor 37Dx68L mm with 64 CPR Encoder (Pololu Robotics and Electronics)

Наименование 30:1 Metal Gearmotor 37Dx68L mm with 64 CPR Encoder
Производитель Pololu Robotics and Electronics(POLOLU)
Артикул 2102858
Коэффициент редукции
Тим мотора
Рабочее напряжение, В

This gearmotor is a powerful 12V brushed DC motor with a 30:1 metal gearbox and an integrated quadrature encoder that provides a resolution of 64 counts per revolution of the motor shaft, which corresponds to 1920 counts per revolution of the gearbox's output shaft. These units have a 0.61"-long, 6 mm-diameter D-shaped output shaft. This gearmotor is also available without an encoder.Key specs at 12 V: 350 RPM and 300 mA free-run, 110 oz-in (8 kg-cm) and 5 A stall. This powerful brushed DC gearmotor is available in six different gear ratios and features an integrated quadrature encoder with 64 counts per revolution (CPR) of the motor shaft. The motor and encoder portion is available by itself (no gearbox), and versions without the encoder are also available. Using the Encoder A two-channel Hall effect encoder is used to sense the rotation of a magnetic disk on a rear protrusion of the motor shaft. The quadrature encoder provides a resolution of 64 counts per revolution of the motor shaft when counting both edges of both channels. To compute the counts per revolution of the gearbox output, multiply the gear ratio by 64. The motor/encoder has six color-coded, 11" (28 cm) leads terminated by a 1?6 female header with a 0.1 pitch, as shown in the main product picture. This header works with standard 0.1 male headers and our male jumper and precrimped wires. If this header is not convenient for your application, you can pull the crimped wires out of the header or cut the header off. The Hall sensor requires an input voltage, Vcc, between 3.5 and 20 V and draws a maximum of 10 mA. The A and B outputs are square waves from 0 V to Vcc approximately 90° out of phase. The frequency of the transitions tells you the speed of the motor, and the order of the transitions tells you the direction. The following oscilloscope capture shows the A and B (yellow and white) encoder outputs using a motor voltage of 12 V and a Hall sensor Vcc of 5 V. By counting both the rising and falling edges of both the A and B outputs, it is possible to get 64 counts per revolution of the motor shaft. Using just a single edge of one channel results in 16 counts per revolution of the motor shaft, so the frequency of the A output in the above oscilloscope capture is 16 times the motor rotation frequency. Size: 37D x 68L mm Weight: 215 g Shaft diameter: 6 mm General specifications Gear ratio: 30:1 Free-run speed @ 6V: 175 rpm Free-run current @ 6V: 250 mA Stall current @ 6V:2500 mA Stall torque @ 6V:55 ozin Free-run speed @ 12V: 350 rpm Free-run current @ 12V: 300 mA Stall current @ 12V: 5000 mA Stall torque @ 12V:110 ozin Lead length: 11 in

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