Speed Measuring Counter Sensor Groove Coupler Module

This is a speed sensor groove type optical coupling sensor, the major goal is to check the rate of motor. It was widely used in motor speed detection, pulse count, the position limit, etc. The module can be used in association with a microcontroller for motor speed detection, pulse count, position limit, etc. In principle, any rate meter simply measures the rate at which some event occurs. Usually this is done by counting the events for a given period of time (integration interval) and then simply dividing the number of events by the time to get the rate.

Basically, the microcontroller-compatible motor speed sensor module described is a simple device that yields processed pulse trains when the visual path of its optical sensor is physically interrupted by some sort of slotted wheel or similar mechanism (an optical sensor commonly consists of a light emitting diode that provides the illumination, and a phototransistor that senses the presence or absence of that illumination). The transmissive optical sensor used here consists of an infrared light emitting diode and a phototransistor. This both prevents interference from stray external light sources and by having the two components matched for a specific frequency of radiation, they are even more immune to undesired interference.

The DO output interface can be directly connected to a micro-controller IO port, if there is a block detection sensor, such as the speed of the motor encoder can detect.

DO modules can be connected to the relay, limit switch, and other functions, it can also with the active buzzer module, compose alarm.

Feature:

• Using imported groove optical coupling sensor, width 5mm
• It have the output state light, if output high level, the lights are off. if output low level ,it on
• If it covered,it will output high level;otherwise it output low level
• Good signal and waveform, with strong driving ability for more than 15mA
• Equipped with a fixed bolt hole, easily install
• Use the LM393 wide voltage comparer

Specification:

Wiring Specification:

• VCC Connect the positive 3.3 5 v power supply
• GND Connect power negative
• DO TTL switch signal output
• AO This module does not work