OPB493N11Z

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Optical Sensors are devices that detect the presence of light. Photointerrupters are a type of optical sensor that operates by automatically switching on and off when a light beam is interrupted. The OPB493N11Z is an example of a slot type photointerrupter with a logic output.

Application Field of OPB493N11Z

The OPB493N11Z is a type of photointerrupter which is suited for use in a variety of applications. It is widely used in industrial and electronic engineering applications such as non-contact position sensing, electronic switching, print wheel registration, motor speed sensing and pulse counting. It is also used in automation and robotics applications wherein its non-contact operation allows the detection of the presence of a moving object without requiring physical contact. Additionally, it can be used in medical and laboratory instruments due to its accurate detection capabilities.

Working Principle of OPB493N11Z

The working principle of the OPB493N11Z is based on the interruption of an infrared light beam by an object that passes through its slot. It consists of two parts: the infrared light-emitting diode placed on one end of the device, and the phototransistor placed on the other. When these two parts are connected in series with a power supply, the light beam emitted by the diode is blocked by an object that is placed in the slot of the OPB493N11Z. This interruption of the light beam causes the phototransistor to switch off, thus triggering an electrical output signal. The signal’s logic state is determined by the current direction of the power supply.

The OPB493N11Z is designed to have a narrow slot width (7.2 mm) and short fixing distance (23.3 mm). It also has a short response time of 1 milliseconds and a long service life of up to 1 billion cycles. Furthermore, it comes in an 8-lead DIP package, making it easier to mount on a printed circuit board (PCB).

Conclusion

The OPB493N11Z is a slot-type photointerrupter with logic output that is used in a variety of industrial and electronic engineering applications. Its working principle is based on the interruption of an infrared light beam by an object that passes through its narrow slot, which in turn causes the phototransistor to switch off, triggering an electrical output signal. This device offers a short response time and long service life, making it an ideal choice for various automation and robotics applications.

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