The pressure sensor works by measuring force and is generally used with gases and with liquids. Pressure is what force is needed to stop fluids from expanding. Measurements of this are given in terms of the force required per unit of area. Sensors work as transducers during the process, and create electrical signals based on existing pressure levels.

These transducers monitor and control several common applications. Among these are the flow of fluids and gasses, water levels, altitude, and speed. For this reason, they are also available in several forms, some of these better suited for some purposes than others. They can vary in their performance, design, and in what technology they contain. Their cost can also be highly variable.

Specialized sensors exist that are designed especially to capture any high speed changes in force. This is a great device to measure the force of combustion in an engine cylinder. This sensor is composed of materials such as quartz.

Sensors can be organized based on the force range they measure, their operation temperature ranges, and what force type they measure. In the category of force type that is measured alone there are five distinct sensor devices: sealed, differential, vacuum, gauge, and absolute.

The absolute varieties can measure force in terms related to perfect vacuum force. For example, the measurement of atmospheric pressure for sea level, determined by using the perfect vacuum as a reference. Gauge varieties may be calibrated so they measure pressures relative to the atmosphere from any location. An example of one is a tire gauge.

Vacuum models measure forces that are less than the atmospheric force in any location. Differences as inputs to sensing units are measured by differential models. These can also detect any changes across oil filters and measure the level and flow in pressurized vessels. Sealed models are basically the same as the gauge ones. The key difference is they are calibrated by manufacturers to measure in relation to the level of the sea.

These devices can be used within many types of machinery, not limited to cars, submarines, or aircraft. Force measurements are required for functioning cars, aircraft, weather instruments, and more. Determining altitude is critical for satellites, rockets, weather balloons, and aircraft. Pressure sensors can measure altitude with higher accuracy than devices using GPS.

They can also sense flow, like between two venturi tubes, when difference are very small. Depth measurements determine levels of submerging for submarines or divers. Sensors can also find the levels of fluids in water towers. Last but not least, they are capable of calculating the lost force caused by leaks.

The pressure sensor can measure forces on gases and liquids. These devices vary in use, design, and contained technology. For this reason they also differ in price. Some can capture high speed force changes and are used for analysis of engine cylinders. Others measure the altitude in a rocket and flow in tubing. They can even analyze the depth of a submarine, fluid levels in a water tower, and the consequences of leaks.

Author Bio: Choose from an expansive selection of state-of-the-art scientific technologies including the linear position sensor, pressure sensor, calibration systems, load cells, mass flow sensor, and accelerometer. These specialized tools, like the load cells, are very popular among the research and development industries.

Category: Computers and Technology
Keywords: technology,science,education,sensors,devices,design,engineering,machinery, research, business