PNZ300

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As a high precision photodiode sensors, PNZ300 have wide applications in the fields of industry, pharmaceutical, environmental, quality control and other optoelectronic research. With comprehensive performance of high linearity, wide dynamic range, low noise, and strong adaptability with environment, the PNZ300 photodiode can provide an accurate and reliable output in complex working environment. In addition, it has fast response, excellent temperature coefficient, and small zero error. These features enables PNZ300 photodiode to be widely used in industrial and laboratory light measurement.

The PNZ300 photodiode has an active area of 300μm or higher, and a wide spectral range, from 300nm to 1,100nm. The photoelectric current can be adjusted by adjusting the voltage of the current source, while the click-and-lock connector improves the slotting effect and facilitates the mounting process. The PNZ300 photodiode is normally packaged in a dielectric form surrounded by a suction fixer, allowing easy and reliable installation to other equipment.

The working principle of the PNZ300 photodiode can be broadly categorized into two processes, photoelectric conversion and current output. In the photoelectric conversion process, incident light on the photodiode is first hitting the active layer and then converted into electron-hole pairs. These electron-hole pairs are then passivated under the applied voltage and spread to the interface of the p-type and n-type layers. The collected electrons move from the interface to the connection point under the influence of the external voltage, while the holes move towards the edges of the p layer. Consequently, a current is generated.

In the second process, the PNZ300 photodiode converts the generated current into digital signal, which is used for further processing. This involves the use of an amplifier circuit to amplify the original current signal, before applying an analog-to-digital converter to the output signal. The A/D converter will change the signal into the corresponding digital signal, while the output control circuit ensures that the digital signals get amplified according to the preset set and outputted to a digital device, such as a computer.

Therefore, PNZ300 photodiode can accurately measure the luminosity of environmental light sources and output the corresponding digital signal for further processing. In addition, the combination of its fast response, high accuracy, robust performance, and excellent thermal stability makes PNZ300 photodiode an important device for various light measurements.

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