OPB698C

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Optical Sensors have gained massive traction in the industrial and consumer electronics sectors in recent years due to their increased efficiency, reliability, and accuracy compared to the alternatives. Additionally, the cost of manufacture and implementation of Optical Sensors has much reduced in comparison to other methods of sensing information. One optical sensor amongst the many available is the OPB698C – a slot type Photointerrupter with logic output.

The OPB698C is a transmissive type Photointerrupter which is made up of an infrared light emitting diode (LED) and a silicon-based light receptor. It has a built-in internally-shielded slot gap width of 5 mm and a optical distance sensing range between 4 - 10 mm, which can detect standard paper cards, and other such materials without the need for adjustments. OPB698C can modify frequency according to the external voltage, and has a standard trigger frequency of 500 Hz when supplied with 5V.

The overall design and construction of the OPB698C makes it suitable for use in a variety of applications, such as determining and displaying material weights in digital scales, for product identification and authentication in large retail stores, and for presence, absence, obstruction and counting control in equipment such as vending machines and other automated systems. Furthermore, it is also used within a variety of motion-sensing based systems, such as object-tracking robots, automatic doors in commercial buildings, etc.

The working principle of the OPB698C is as follows: the internal infrared LED of the sensor transmits light towards the slot which is then received by the silicon-based light receptor. When the slot is occupied by an object, the light is interrupted which triggers the output logic signal. The output logic signal in turn, can be used to activate the required control circuitry. Additionally, the intensity of the signal can be regulated so that it is suitable for each individual application.

In order to ensure full functionality of the OPB698C, the reflectance of the object must meet the required parameters; otherwise, the presence of the object may not be accurately sensed. Furthermore, it is important to understand that the functioning of the sensor is highly dependent on the intensity of the light generated from the infrared LED, and hence particular care must be taken when the OPB698C is being used in an environment with high ambient light. It is highly recommended that the sensor is provided with a shielding enclosure to ensure proper functioning.

In conclusion, the OPB698C is a highly efficient and reliable slot type Photointerrupter with logic output, which can be used in various applications such as weighing material, product authentication, object-tracking, etc. With its adjustable trigger frequency and internal sensing distance, it is able to sense objects of varying sizes without the need for any manual adjustments. Furthermore, the various features make the OPB698C suitable for use in both industrial and consumer application scenarios.

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