DP11SVN20A20S

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Encoder is a kind of device used to encode and decode the digital signal, which is commonly used to measure position, speed, count, direction and so on. Nowadays, different encoders have various working principles and applications fields. In this article, the DP11SVN20A20S encoder will be discussed in terms of its application field and working principle.

Application fields of DP11SVN20A20S encoder

The DP11SVN20A20S encoder is a compact high-resolution encoder, mainly used in various metering applications. It can be used in a wide range of sensor applications, such as flow meters, broken wire sensors, bearingless sensors and ultrasonic distance meters. It also can be used to measure the position of two-dimensional wheels, rotate disks, linear arrays, etc. Its application in the metal cutting field is the most common, enabling the accurate detection of both the speed and acceleration of the cutting tool.

In addition, the DP11SVN20A20S encoder is also used in many other fields such as industrial automation, electronic scales and material testing machines. It finds its use in robots, printable parts, 3D printing, CNC machines, pattern recognition, and many other applications.

Working principle of DP11SVN20A20S encoder

The working principle of theDP11SVN20A20S encoder is based on the electro-optical conversion principle, using a modulated light source for original encoding and a receiving type photodetector for decoding. The encoder consists of a light source, a reflective type encoding element, a receiving type decoding element, and a signal output circuit, all of which are optical / electrical isolation. The power supply voltage of the encoder is 8 VDC.

The working of the encoder begins with the light source generating a modulated light beam, which is then reflected by the reflective type encoding element. This reflected modulated light beam is then received at the receiving type decoding element, which converts the received light beam into electrical signals for further processing.

The received electrical signals are then pre-processed using the signal output and a special algorithm that consists of magnetic field compensation, speed compensation, and signal filtering. The pre-processed signals are then converted to a pulse frequency modulation (PFM) signal, which is then converted into an output signal, usually a 4-20mA output signal.

The 4-20mA output signal can then be used to measure the position of two-dimensional wheels, rotate disks, linear arrays, etc. It is also used in motor speed measurement and flow measurement applications.

Conclusion

The DP11SVN20A20S encoder is a compact high-resolution encoder which is mainly used in various metering applications. It utilizes the electro-optical conversion principle, using a modulated light source for original encoding and a receiving type photodetector for decoding. The generated electrical signals are then pre-processed and converted into a 4-20mA output signal, which can be used to measure the position of two-dimensional wheels, rotate disks, linear arrays, and it can also be used in motor speed measurement and flow measurement applications.

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