OPB493T11

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Optical sensors detect the presence or absence of an object by using infrared illumination and a receiver to detect light levels. Photointerrupter devices are a type of optical sensor that measure the presence or absence of an object by measuring the interruption of an infrared beam. The OPB493T11 is a logic output, slot type photointerrupter. It consists of an infrared emitter and photodetector in a plastic housing on a single base, and uses a slotted optical path for sensing objects, making it ideal for applications like banknote transportation.

The OPB493T11 features high-speed response of 10 μs and a wide spectral range of 830 nm. Compact and lightweight in design, it provides superior stability to temperature changes, making it capable of reducing the total system size while providing high precision sensing. The device is rated to work in extended temperature ranges of -30 to +85°C, so it is suitable for a variety of applications.

The device operates with a supply voltage range of 3.5 to 24 V and a current consumption of 0.5 mA. The OPB493T11 has an interrupting slot of 0.38 mm x 3.2 mm, and it features a control circuit with hysteresis to provide a maximum output signal of 4.2 mA, an ON/OFF gap of 0.7 mm, and a repeat accuracy of 0.1 mm. Furthermore, its high repeat accuracy and fast response time make it well-suited for applications requiring high-precision and high-speed detection.

The working principle of the OPB493T11 is to use an opaque object to break the light path between the emitter and detector. When an object is present, the gap between the infrared emitter and detector is blocked, and the output level will be low (open-collector). When the object is removed, the gap will be reopened, and the output level will be high (open-collector). In this way, the output level can be used to detect the presence of an object.

The OPB493T11 is ideal for a variety of applications such as automatic ticket vending machines, banknote transportation, and package handling. It can also be used to detect the presence of coins in machines, the presence of paper in printers and copiers, and the positioning of snow, paper, and other items in machine tools. With its high-precision sensing and fast response time, it is also suitable for applications like process control and position control.

In conclusion, the OPB493T11 is a logic output, slot type photointerrupter that can be used in a variety of applications. It features a high-speed response of 10 μs, a wide spectral range of 830 nm, and a wide supply voltage range of 3.5 to 24 V. With its repeat accuracy of 0.1 mm and high-precision sensing capability, it is one of the most suitable devices for applications requiring high-precision and high-speed detection.

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