Tachometer generators (or tachogenerators) are electromechanical devices which output a voltage proportional to their shaft speed. They are used to power tachometers and to measure the speed of motors, engines, and other rotational devices. In actuator it also used for measure the speed for using in control system.
| Specifications | Units | Value |
| EMF@1000 RPM | V/1000RPM | 4 |
| Armature Resistance | Ω | 30-50 |
| Max Allowed Speed | RPM | 5000 |
| Lineality(%Max) | % | 1 |
| Ripple(%max) | % | 1 |
| Weight | Kg | 0.11 |
| Operating Temp | ℃ | 40 |
| A | mm | 43.3 |
| B | mm | 28.43 |
| C | mm | 36.9 |