P51-200-G-N-M12-20MA

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Pressure sensors, transducers, and related components are electronic devices designed to measure and monitor the pressure of gases, liquids, and air. These devices measure the various forms of pressure, such as absolute, gauge, and differential pressure. The P51-200-G-N-M12-20MA is one such pressure sensor, and its application field and working principle are discussed below.

Application Field

The P51-200-G-N-M12-20MA is a media-isolated pressure sensor which is designed to measure relative pressures of up to 20 mbar (200 kPa) in gases and liquids such as water, oil and fuel. Additionally, it can measure absolute pressure. It has a high load capacity and a small pressure range. This makes it ideal for applications such as pressure control in large hydraulic systems, compacting dies, cooling systems, air conditioning systems, and medical and safety equipment.

Working Principle

The P51-200-G-N-M12-20MA is a physical device which utilizes a sensing element to detect pressure changes. This sensing element is typically a strain gauge, which is a resistor composed of a material such as semiconductor. When a force is applied to the strain gauge, the resistance of the material changes accordingly. This is known as the piezoresistive effect. The resistance changes are measured and converted to a proportional electrical signal.

The sensing element is connected to a Wheatstone bridge circuit. A Wheatstone bridge is an electrical circuit composed of four resistors connected in a loop, two of which are the sensing elements. When an external pressure is applied to the sensing elements, the resistance of the element increases, causing a current to flow through the other two resistors. This current is measured and converted into a voltage signal, which is used to calculate the pressure.

The P51-200-G-N-M12-20MA also has an integrated circuit, which amplifies the voltage signal and digitizes it so that it can be read by an external device. The device is equipped with an analog output signal, which can be used to directly control external devices such as valves or pumps.

Conclusion

In conclusion, the P51-200-G-N-M12-20MA is a pressure sensor designed to measure relative pressures of up to 20 mbar (200 kPa) in gases and liquids. It utilizes a strain gauge sensing element and Wheatstone bridge circuit to convert pressure changes into a proportional electrical signal. The integrated circuit amplifies the signal and digitizes it for external reading and control. The device is ideal for pressure control in a variety of applications such as die compaction, cooling systems, medical and safety equipment, and air conditioning systems.

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