OPB100-SZ

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Optical sensors are integral components in various electronic systems, such as office equipment, test and measurement equipment, optical communications, home appliances, medical equipment, industrial automation and so on. The OPB100-SZ photointerrupters belong to the slot type with transistor output. This article will discuss the application fields and working principle of OPB100-SZ.

Application Fields

The OPB100-SZ photointerrupters feature universal track width, wide slot, integrated pre-assembled tape, lead-frame design, large photo-diode capacity and non-contact with moving parts, making them suitable for a wide range of applications. Typical application fields include on/off sensor switches, multi-layer PCB sensing, elevators and escalators operation, travel switches, mechanical counters, vending machines, packaging machinery, office automation, communication equipment, etc.

Working Principle

OPB100-SZ photointerrupters are composed of an infrared LED emitter and an integrated receiver consisting of a trench telescope and a photo-diode. When an interrupt object passes through the slot in between the emitter and receiver, it blocks the LED light and thus interrupts the signal of the transmitter. The photo-diode within the receiver receives the signal and generates current correcponding to the signal, which is then amplified by the transistor and outputted as a logic signal. Thus, this opto-coupler based on a signal transmission system can detect all kinds of interference and trigger sensing reliably and accurately. Furthermore, the output is in digital form, which simplifies related signal processing.

Key Features

OPB100-SZ photointerrupters offer a number of advantages over traditional sensing technologies. Advantages include wide detection range, small size, reliable detection even in harsh environments, no contact between optical elements and interrupt object, fast signal transmission speeds, low power consumption, and low cost.

Conclusion

In conclusion, OPB100-SZ photointerrupters are suitable for a wide range of applications, ranging from office automation to transportation. With its key features, the photointerrupter offers an efficient, reliable, and economical solution for detecting interruption of infrared light signal.

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