Servo Motors

Servo Motors

Servo Motors

Servo Motors

What is a Servo Motor?

A servomotor is a closed-loop servomechanism that uses position feedback to control its motion and final position. The input to its control is a signal representing the position commanded for the output shaft.

Closed Loop System:

servo motors

The very simplest servomotors use position-only sensing via a potentiometer and bang-bang control of their motor; the motor always rotates at full speed (or is stopped). This type of servomotor is not widely used in industrial motion control, but it forms the basis of the simple and cheap servos used for radio-controlled models.

More sophisticated servo motors use optical rotary encoders to measure the speed of the output shaft and a variable-speed drive to control the motor speed. Both of these enhancements, usually in combination with a PID control, allow the servomotor to be brought to its commanded position more quickly and more precisely, with a lowered risk of overshoot.

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  • Analog servo sub-micro servo motor Feetech S0005

    Analog Servo Motor, FeeTech S0005 (Sub-Micro Size)

    Sparkfun

    £6.00
      Analog Servo Motor, FeeTech S0005 (Sub-Micro Size) Analog Servo s can be found everywhere from heavy machinery, to power steering in vehicles, to robotics and a wide variety of electronics. So there are typically a plethora of options to choose...
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  • PPSG5010_01 PPSG5010_02

    Servo Motor, Double Ball Bearing, High-Speed with Horns - SG5010

    Proto-PIC

    £7.96
    Servo Motor, Double Ball Bearing, High-Speed, 4.8V ~ 6V with Horns - SG5010A high-torque standard servo that can rotate approximately 180 degrees (90 in each direction). You can use any servo code, hardware, or library to control these servos. Good for...
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  • 0J2142.1200__46620

    Power HD Standard Servo 3001HB

    Pololu

    £14.00
    The 3001HB is a great, general-purpose, low-cost standard analog servo from Power HD. Two ball bearings help reduce friction and improve performance. This servo is a replacement for—and upgrade over—the original HD-2360A servo. Servo horns...
    £14.00
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  • PPPOL1056_Main

    Power HD Standard Servo 6001HB

    Pololu

    £14.80
    The 6001HB is a low-cost, standard analog servo from Power HD that gives you plenty of torque without sacrificing speed. Two ball bearings help reduce friction and improve performance. This servo is a replacement for—and upgrade over—the...
    £14.80
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  • 0J3739.600__27172__13803

    Power HD Micro Servo HD-1600A

    Pololu

    £7.50
    The HD-1600A analog servo from Power HD is a great general-purpose micro servo at a great price. Servo horns and associated hardware are included.Key specs at 6 V: 0.10 sec/60°, 17 oz-in (1.2 kg-cm), 6.0 g.This is a great...
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  • PPPOL1049_main

    Power HD Micro Servo HD-1800A

    Pololu

    £9.00
    The HD-1800A analog servo from Power HD is a great general-purpose micro servo at a great price. Servo horns and associated hardware are included.Key specs at 6 V: 0.08 sec/60°, 18 oz-in (1.3 kg-cm), 8.0 g.This is a great general-purpose actuator for...
    £9.00
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  • 0J3876.600__19456__58929

    Power HD Micro Servo HD-1900A

    Pololu

    £9.00
    The HD-1900A analog servo from Power HD is a great general-purpose micro servo at a great price. Servo horns and associated hardware are included.Key specs at 6 V: 0.08 sec/60°, 21 oz-in (1.5 kg-cm), 9.0 g. This is a great...
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  • 0J2319.1200__20570

    SpringRC SM-S4303R Continuous Rotation Servo

    Pololu

    £12.59
    The SM-S4303R is a standard-sized servo that has been built by SpringRC specifically for continuous rotation, making it an easy way to get your robot moving. It features two ball bearings on the output shaft for reduced friction, and it offers easy...
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  • 09347-1__88865__25668 09347-1__88865__256681

    SparkFun ROB-09347 Servo - Full Rotation

    Sparkfun

    £12.98
    SparkFun ROB-09347 Servo - Full RotationHere, for all your mechatronic needs, is a simple, high quality continuous full-rotation servo motor. This servo is able to take in 6 volts and deliver 66.7 oz-in. of maximum torque at 70 r/min.A standard 3-pin...
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  • 0J4979.1200__86702 0J4979.1200__867021

    Power HD Ultra-High-Torque, High-Voltage Digital Giant Servo HD-1235MG

    Pololu

    £78.00
    The Power HD 1235MG servo is all about torque. This 1/4-scale servo can deliver an incredible 560 oz-in of torque at 7.4 V or 490 oz-in at 6 V, and it features an all-metal gear train, digital control electronics, and two ball bearings on...
    £78.00
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  • 9g_servo_01__84575 9g_servo_01__845751

    Analogue 9 Gram Servo - Light Weight - SG90 - 9G - 120 degree Rotation

    Proto-PIC

    £3.60
      Analogue 9 Gram Servo - Light Weight - 9G - 120 degree Rotation This is a nice inexpensive light weight analogue servo perfect for a variety of projects. We've used these for many fun build, including a recent arm waving cardboard model for an...
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  • PPPOL3438_main PPPOL3438_1

    Sub-Micro Servo FS0403-FB with Position Feedback

    Pololu

    £10.00
    FEETECH Sub-Micro Servo FS0403-FB with Position Feedback - Pololu 3438 This version of the FS0403 sub-micro servo from FEETECH is specially modified to provide access to the feedback potentiometer through a fourth (green) wire, allowing you to...
    £10.00
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