As far as we known , a rotary encoder is a position sensor or speed sensor that can be fixed to a rotating object such as wheel or motor to measure the rotation of the object. This measurement can help robots to determine the angle of a rotating sensor, velocity, acceleration and displacement.
A typical encoder employs one or more optical sensors,a special reflector for producing electrical pulses that are transmitted to a microcontroller.
This electrical pulses can be used in PID feedback control system, in this way, the position of the moving robot can be determined.
to get a right encoder for robot industry, the most important part is the outside dimensions of the encoder, it should be extra thin because there's limit space left to install a encoder.
neither too big nor too small. It can't be installed into the robot if the size is too big, or the precision is not enough if the size is too small.
According to customers feedbacks, Hengxiang's engineer team worked out a unqiue & specical design for robot usage, with high precision, extra thin, hollow shaft to easy to mount.
what's more, its economic cost allows more possibility.