Structurally, a strain gauge pressure transducer sensor is made of a metal body (also called flexure) to which the metal foil strain gauges are bonded. The strain applied in the pressure transducer can be determined based on this principle, as strain gauge resistance increases with applied strain and diminishes with contraction. This change in shape causes the resistance in the electrical conductors to also change. When it is pushed, it is contracted and gets shorter. When this film is pulled, it - and the conductors - stretches and elongates. Strain gauges are electrical conductors tightly attached to a film in a zigzag shape. In other words, it converts force, pressure, tension, compression, torque, and weight (aka weight sensors) into a change in electrical resistance, which can then be measured.
A metal foil strain gage is a transducer whose electrical resistance varies with applied pressure.
PIEZO ELECTRIC PRESSURE SENSOR HOW TO
To understand how a industrial pressure sensor works and how to measure pressure, firstly, one needs to grasp the underlying physics and materials science behind the pressure sensor working principle and piezoresistive effect, which is measured by the strain gauge (sometimes referred to as a strain gage). Pressure transducers often utilize piezoresistive technology, as the piezoresistive element changes its electrical resistance proportional to the strain (pressure) experienced. Pressure is defined as the amount of force (exerted by a liquid or gas) applied to a unit of “area” (P=F/A), and the common units of pressure are Pascal (Pa), Bar (bar), N/mm2 or psi (pounds per square inch). A pressure transducer consists of a pressure-sensitive element that can measure, detect or monitor the pressure being applied and electronic components to convert the information into an electrical output signal. What does a pressure transducer do? A pressure sensor is a transducer or instrument that converts an input mechanical pressure in gases or liquids into an electrical output signal. More than 60+ types of sensors available! There are several types of pressure transducers based on size, capacity, measurement method, sensing technology and output requirements.Ĭheck out our Pressure Transducer Store. A pressure transducer is defined as a transducer that converts an input mechanical pressure into an electrical output signal (pressure sensor definition). by FUTEK Advanced Sensor Technology (FUTEK), a leading sensor manufacturer, utilizing one of the most advanced technologies in the Sensor Industry: Metal foil strain gauge technology. Pressure Transducers manufactured in the U.S. Get to know the functionalities and capabilities of various pressure measurement sensors in this comprehensive guide. Pressure Transducer: Definition, working principle and types. What is a Pressure Transducer? What are the different types of pressure transducers and pressure-sensing technologies and how do they work in pressure measurement?
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