Working characteristics

It is often expressed by the relationship between output and input, or between one output and another output. In terms of control requirements, the static characteristic curve shall be continuous and smooth without sudden change; Dynamic characteristics are often represented by frequency curve or response curve. The frequency curve shall be stable without sudden jump and oscillation point; The response curve shall converge rapidly.

sensitivity

The size of the output amount corresponding to the unit input signal. It is generally expressed by specific torque, specific electromotive force, amplification factor, etc.

accuracy

Under certain input conditions, the difference between the actual value and the theoretical value of the output signal represents the accuracy of the micromotor, which is often expressed by the size of the error.

Impedance or resistance

In the system, the input and output impedance of the micromotor shall be matched with the corresponding circuit respectively to ensure the operation performance and accuracy of the system.

reliability

It is not only the special requirement of micro motor for control, but also that of driving micro motor and power micro motor. Service life, failure rate, reliability and mean time between failures are commonly used to characterize the operation reliability of micromotors.