Tachometers

Tachometers

DC tachometer generators provide a convenient means of converting rotational speed into an isolated analog voltage signal suitable for remote monitoring and velocity control applications. Tachometers are particularly suited in precision integrator and velocity servo applications, both of which require a highly linear speed/voltage relationship with minimum ripple. The nearly pure dc output-with no phase shift-allows tachometers to be used as velocity feedback transducers for fast-response servos and other devices. DC tachometers are also excellent rate generators for velocity damping in low speed position servo applications. Contact us today for a quote.

Advantages of Tachometers

  • Have linear characteristic
  • Temperature compensation is easily achieved
  • Can generate high voltage in a small size
  • Polarity of induced voltages indicates direction of rotation of the shaft
  • Conventional DC type voltmeter is used for measuring the induced voltage
  • Ideal in control or measurement applications which require directional indication

Servo-Teks DC TachometersServo-Teks’ family of DC Tachometers includes:

  • A Series - DC Tachometers with output signal between 1 and 10 volts/1000 rpm.
  • B Series - DC Tachometers with output signal between 11 and 24 volts/1000 rpm.
  • D Series - DC Tachometers with output signal between 25 and 50 volts/1000 rpm.
  • E Series - DC Tachometers with output signal between 0.7 and 3 volts/1000 rpm.
  • F Series – Low ripple DC tachometers with output signal between 1 and 8 volts/1000 rpm.
  • H Series - Low ripple DC tachometers with output signal between 5 and 16 volts/1000 rpm.
  • J Series - Low ripple DC tachometers with output signal between 16 and 30 volts/1000 rpm.
  • Sealed Tachometers available with a variety of outputs. 

Tachometers Frequently Asked Questions

What is a tachometer and what are its uses?

A tachometer is an instrument used to measure the rotation speed of a shaft or disk. Tachometers are powered by tachometer generators and can be used to monitor engine and motor speed, and corresponding speed of powered equipment like conveyors, mixers, and machine tools. They are often used as feedback devices in speed control circuits.

How does a tachometer generator work?

Modern tachometers use a rotating armature to measure rotational speed. The armature rotates within a fixed magnetic field, inducing electromotive force proportional to the shaft’s speed. The armature contacts are connected to a voltmeter circuit, which converts the voltage into a speed value. Tachometer generators power tachometers and output a voltage proportional to their shaft speed.

Items 1-30 of 121

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  1. BA-7107B DC Tachometers Servo-Tek Products
    BA-7107B

    B-Series, Large Flange, 20.8 V/ 1000 RPM, 8000 RPM Max Speed

  2. BA-7107B-1 DC Tachometer from Servo-Tek Products
    BA-7107B-1

    Tapped Holes / Face

  3. BA-7107D-1 DC Tachometers Servo-Tek Products
    BA-7107D-1

    D-Series, Large Flange, 45 V/1000 RPM, 5000 RPM Max Speed

  4. BA-7346D-1 DC Tachometer from Servo-Tek Products
    BA-7346D-1

    Tapped Holes / Face

  5. CC-7431F-51 DC Tachometer from Servo-Tek Products
    CC-7431F-51

    Custom Mount

  6. CN-7480A-2AC DC Tachometer from Servo-Tek Products
    CN-7480A-2AC

    Custom Mount

  7. CN-7480B-6A DC Tachometer from Servo-Tek Products
    CN-7480B-6A

    Custom Mount

  8. CN-7480D-1 DC Tachometer from Servo-Tek Products
    CN-7480D-1

    Custom Mount

  9. CN-7480D-1J DC Tachometer from Servo-Tek Products
    CN-7480D-1J

    Custom Mount

  10. CN-7546D-1 DC Tachometer from Servo-Tek Products
    CN-7546D-1

    Custom Mount

  11. CN-7573B-6A DC Tachometer from Servo-Tek Products
    CN-7573B-6A

    Custom Mount

  12. CS-7514F-51C DC Tachometers Servo-Tek Products
    CS-7514F-51C

    F-Series, Face Mount, 3 V/1000 RPM, 12000 RPM Max Speed

  13. CS-7561F-51C DC Tachometers Servo-Tek Products
    CS-7561F-51C

    F-Series, Face Mount, 3 V/1000 RPM, 12000 RPM Max Speed

  14. CU-7524B-1 DC Tachometer from Servo-Tek Products
    CU-7524B-1

    Custom Mount

  15. DA-7533A-2 DC Tachometer from Servo-Tek Products
    DA-7533A-2

    Tapped Holes / Face

  16. DA-7533B-1 DC Tachometer from Servo-Tek Products
    DA-7533B-1

    Tapped Holes / Face

  17. DA-7533D-1 DC Tachometer from Servo-Tek Products
    DA-7533D-1

    Tapped Holes / Face

  18. SA-7103A-1 DC Tachometer from Servo-Tek Products
    SA-7103A-1

    Tapped Holes / Face

  19. SA-7103A-2 DC Tachometers Servo-Tek Products
    SA-7103A-2

    A-Series, Tapped Holes / Face, 7 V/ 1000 RPM, 12000 RPM Max Speed

  20. SA-7103A-2C DC Tachometer from Servo-Tek Products
    SA-7103A-2C

    Tapped Holes / Face

  21. SA-7103A-3 DC Tachometer from Servo-Tek Products
    SA-7103A-3

    Tapped Holes / Face

  22. SA-7103A-5E DC Tachometer from Servo-Tek Products
    SA-7103A-5E

    Tapped Holes / Face

  23. SA-7103B-1 DC Tachometers Servo-Tek Products
    SA-7103B-1

    B-Series, Tapped Holes, 20.8 V 1000 RPM, 8000 RPM Max Speed

  24. SA-7103H-1D DC Tachometer from Servo-Tek Products
    SA-7103H-1D

    Tapped Holes / Face

  25. SA-7114A-5E DC Tachometer from Servo-Tek Products
    SA-7114A-5E

    Tapped Holes / Face

  26. SA-7125A-2 DC Tachometers Servo-Tek Products
    SA-7125A-2

    A-Series, Tapped Holes / Face, 7 V/ 1000 RPM, 12000 RPM Max Speed

  27. SA-7249A-2 DC Tachometer from Servo-Tek Products
    SA-7249A-2

    Tapped Holes / Face

  28. SA-7356F-1 DC Tachometers Servo-Tek Products
    SA-7356F-1

    F-Series, Face Mount, 7 V/1000 RPM, 12000 RPM Max Speed

  29. SA-7384F-10 DC Tachometer from Servo-Tek Products
    SA-7384F-10

    Tapped Holes / Face

  30. SA-7388F-1 DC Tachometers Servo-Tek Products
    SA-7388F-1

    F-Series, Face Mount, 7 V/1000 RPM, 12000 RPM Max Speed

Items 1-30 of 121

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