Pressure Sensors, Transducers, - P51-100-S-I-P-4.5V-000-000 Application Field and Working Principle

Pressure Sensors, Transducers, and their components control the direction, amount, and speed of moving fluids such as gases or liquids through a conduit or other type of system. These pressure sensing elements measure precisely the pressure of the moving fluids. They are a critical part of the monitoring and control systems that keep modern industries and power plants running efficiently, safely, and cost effectively.

Types of Pressure Sensors

Pressure sensors measure the static or dynamic pressure of fluids, gases, and liquids which can be divided into two different categories: absolute and differential. Both have their own application fields and advantages.

1. Absolute Pressure Sensors: They measure the total pressure of a system with reference to absolute zero pressure. This type of pressure sensors is the most common. They are used in industrial sector, medicine and agriculture.
2. Differential Pressure Sensors: They measure the pressure of a two-point system, such as air pressure in an engine or the pressure of two pipes connected to a pump. Differential pressure sensors are used in power plants, aircrafts and oil and gas platforms.

P51-100-S-I-P-4.5V-000-000 Pressure Sensors, Transducers

The P51-100-S-I-P-4.5V-000-000 is a pressure sensor, transducer made by Sentron. It is an absolute piezoresistive pressure transducer that provides a linear output for an applied pressure range from 0 to 100 psi. This type of low-cost, robust device can be used to measure pressure in a variety of applications such as pumps, medical devices, and pressure vessels. It is a digital pressure sensor, meaning it gives a digital output that is connected to a processor. The pressure range of the device is 100 PSI and is capable of measuring temperatures between -40ºF and +450ºF (-40ºC to +232ºC).

Working Principle

The P51-100-S-I-P-4.5V-000-000 includes a monolithic piezoresistive sensing element and a microcomputer for signal processing. The device works by measuring the relative resistance of four metal-oxide resistors. These resistors have varying resistances that depend on the deformation of the sensing element caused by applied pressure. Since the deformation can be accurately measured by the resistors, the pressure applied can be calculated and a digital output signal sent to the user. This digital signal provides a linear output proportional to pressure ranges of 0-100 psi. Unlike its analog counterparts, this pressure transducer does not need any zeroing or calibration.

Applications

The P51-100-S-I-P-4.5V-000-000 can be used for a wide range of applications, including pumps, medical devices, and pressure vessels. This sensor is ideal for any application requiring accurate pressure measurements in a variety of mediums, including hot water or steam. It can also be used to measure pressure in liquid suspensions, as well as food products such as pastes or sauces. The device is largely immune to electromagnetic interference, making it suitable for use in high voltage or other electromagnetic environments.

Conclusion

The P51-100-S-I-P-4.5V-000-000 pressure sensor, transducer is an accurate, low-cost, robust device ideal for measuring pressure in a wide variety of industrial, medical, and agricultural applications. The device utilizes a piezoresistive sensing element and a microprocessor to accurately measure pressure down to 0-100 PSI and in temperatures ranging between -40ºF and +450ºF (-40ºC to +232ºC). The device is highly immune to electromagnetic interference and is ideal for use in harsh environments.