Magnetic system

Sensors scan rotating magnets or ferromagnetic material measures and use them to generate a signal. These systems tend to be more mechanically robust than optical systems. It is also possible to deviate from the classic design. For example, in the case of built-in encoders from the E7. and EI8. family, magnetic pole rings are integrated in the fan. Magnetic field sensors on an encoder module detect these pole rings. This encoder module is integrated between the motor and fan in a space-saving manner and measures changes in position in a contactless and wear-free manner. The corresponding incremental signals are produced by interpreting the measured values.

• Design and operating principle
• Signal level