DC tachogenerators
DC tachogenerators are manufactured for installation as a sensor of the rotational speed of the motor or in control systems as a feedback loop.
We are the manufacturer of the PATO 78-14 tachogenerator. The standard version we produce, used in the servomotors, has a fixed voltage ratio of kE = 31,5V / 1000 rpm.
In our offer, you will also find tachogenerators based on PATO 78-14, equipped with windings adapted for different voltages which were created as a response to our customers’ needs.
| Specifications | ||||
| Parameter | Symbol | Unit | Value | Tolerance |
| Voltage | KE | V/1000min-1 | 31,5 | ±10% |
| Armature resistance | RT | Ω | 80 | ±10% |
| Armature inductance | LT | mH | 90 | ±30% |
| Load resistance | RO | kΩ | 6,8 | |
| Max. rotational speed | nmax | obr/min | 4000 | max |
| Voltage unbalance | ΔUa | % | 1 | max |
| Non-linearity | ΔUL | % | 0,5 | max |
| Voltage pulse | W | % | 1 | max |
| Harmonic slot pulsation | φλ | – | 33 | |
| Moment of inertia of the rotor | It | kgm2*10-6 | 0,77 | |
| Friction torque | MF | Nm*10-3 | 1,8 | max |
| Permissible angular acceleration | ε | rad*s-2 | 10 4 | max |
| Temperature deviation | kΔt | % / OC | -0,02 | max |
| Weight of the generator | G | kg | 0,6 | |