Description:
1.Operating Voltage: 5V
2.Pulse Number for One Circle: 20
3.Rotary
encoder can count the output pulse times by rotating positively and
negatively. This counting method has no limitation, it can reset and
come back to the initial status if matching with the key on the encoder
(that is to say it will count from 0)
4.Operating
Principle: Incremental encoder is a kind of rotary sensor which
transforms the rotation displacement into a series of digital pulse
signal. These pulses are used to control angular displacement. In Eltra
encoder, the transformation of angular displacement adopts photoelectric
scaning principle. The reading system is based on the radial dividing
plate's rotation of alternative light window and non-light window, and
it will be exposed to infrared light source at the same time. The light
will reflect the picture of plate on the surface of receiver. The
receiver is covered by a diffraction grating, and it has the same window
width with the plate. The operation of receiver is to detect the change
of light plate rotation, then transform the light change into electric
change. Increase the low level signal into high level and generate
square pulse without any interference. This process needs circuit to
deal with. The reading system usually adopts differential method, that
is compare two different signals who have the same waveform bu the phase
difference is 180 degree so as to improve the output signal quality and
stability. Reading is formed on the basis of the difference between two
signals, so it eliminates the interference
