Photoelectric Encoder Speed Sensor Encoder Smart Car C B D E Car ModelItem NO.: CBDE car model

Photoelectric Encoder Speed Sensor

Technical Parameters Of Code Disk:

● Number of lines: 100 lines

● Outer diameter: 22mm

● Inner hole diameter: 3.5mm

● Thickness: 0.3 mm

● Material: alloy steel

● Manufacturing process: laser cutting

● Installation method: it can be fixed using the installation column provided by the seller.

Technical Parameters Of Velocity Measurement And Tube Alignment:

● Pipe manufacturer: original from HP, USA

● Power supply voltage: 5V (3.3V is also available)

● Wiring mode: red 5V black GND

● Output signal: 5Vp-p two-phase signal output (see the figure below).

● Two signal lines, one yellow and one blue (due to different production batches, sometimes the signal line may be green, which does not affect usage), yellow and blue are two TTL level signals (which can be directly connected to the microcontroller), respectively (Note: measuring forward and reverse rotation depends on these two levels to distinguish between forward and reverse rotation)

(Set A and B as signal lines)

A First pulse, proven positive rotation

B First there is a pulse, which proves to be an inversion

Important Note:

There is no output when blocking or not blocking for a long time. As a phase detection, waveform output is only available at the rising and falling edges of the target. Therefore, when rotating the code disk or switching back and forth with an opaque object, there is a square wave output. At high speed, it is similar to a sine wave or a sawtooth wave, as shown in the video below. The multimeter test always shows around 0.1V, which is invalid! Please use an oscilloscope or the acquisition port of a microcontroller for testing.