BPX 81-4

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Optical sensors - phototransistors are widely used in industrial automation for several purposes. The BPX 81-4 is a type of such phototransistor device. It is a special kind of photoelectric detector for use in optical communication systems. The device enables reliable and consistent communication between two points in an optical communication network.

The BPX 81-4 is based on the photodiode, which is a semiconductor diode that converts a light signal into current. It has a integrated amplifier that amplifies the signal and a TTL (Transistor Transistor logic) output for a serial output. This phototransistor is designed to detect visible or near-infrared radiation from TV, cameras, laser radiation, fiber optics, etc. It has a wide dynamic range, wide operating temperature range (-40 to +105°C), high response speed and good linearity.

The main application of BPX 81-4 is its use in optical communication networks. It is used as an interface between the optical source and the electrical signal processors like modulators and demodulators. This phototransistor provides reliable and consistent transmission of digital data between two points in an optical network. It can also be used as an optical component in optical rangefinders and distance measuring instruments.

The BPX 81-4 works on the principle of photon-induced current generation. When an incident light beam of the visible or near-infrared radiation strikes the photodiode, photo-generated charge carriers are produced. These charge carriers are then amplified by the integrated amplifier and delivered as a TTL output. This output is then interpreted as a digital data that can be used for communication.

The BPX 81-4 is very useful for its applications in optical communication. It is robust, reliable and can operate over a wide range of temperatures and radiation types. It is also very flexible and suitable for a wide range of applications. Moreover, the device has a low power consumption and is very sensitive. These features make it ideal for many industrial automation applications.

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