The encoder specialized terminology

1, the output pulse number/roll

One revolution of the rotary encoder output pulse count, for optical rotary encoder, usually same as the inside of the rotary encoder grating slot number (can also be used in the circuit of output pulse number added to the slot number 2 times 4 times).

2, the resolution of the

Rotary encoder resolution said the spindle rotates, read the location data of maximum score, etc. Absolute value type is not in the form of a pulse output, and form the current code for the main shaft position (Angle). Unlike incremental type, is equal to the incremental type "output pulse/roll".

3, maximum response frequency

In response to the maximum number of pulses within 1 second. Example: maximum response frequency to 2 KHZ, which is 1 seconds can respond to 2000 pulses

Formula is as follows: maximum response speed (RPM)/x 60 Hz (pulse number/roll) = output frequency

4, maximum response speed

Response formula is as follows: maximum response frequency (Hz)/(pulse number/roll) x 60 = shaft RPM speed

5, the output signal phase difference Two phase, the output of the two output pulse waveform of the relative lag.

6, starting torque

Make dormant encoder shaft rotation necessary moment. Usually run in the moment than the starting torque is small.

7, axis allows the load

Said additive on the axis of maximum load, which has two kinds of radial and axial load. Radial load for shaft is vertical, loading and eccentric Angle and so on; Axial load for shaft is horizontal, stress is associated with the force of push-pull shaft. The two forces affect the size of the shaft mechanical life