About Differential Pressure Transducers
August 11th, 2009 by Christian
A differential pressure transducer measures the pressure between two defined positions. Piezoresistance is employed to determine differential pressure.
Applications for differential pressure calculations are evident in chemical, food and aerospace industries. Differential pressure measurements are also required at water treatment plants and in hydraulic control systems.
One particularly relevant type of differential pressure is referred to as dynamic pressure, since it is not static but is free-flowing. Rates of flow as well as the speed of moving aircraft are measured by dynamic pressure.
Differential pressure is measured in PSID, or pound-force per square inch difference.
The ideal bi-directional differential pressure transducer should be a reliable, full-line model of superior quality. The differential pressure transducer must be able to withstand high shock and vibration applications with advanced enduring stability, along with exceptional hysteresis and repeatability.
Also, it should be completely functional and error-free at temperatures between -65 degrees F and +250 degrees F (or -53 degrees C to +121 degrees C). Ranges of pressure to measure should be 0-500 PSID to 0-5000 PSID. The thermal zero shift should be at an absolute minimum point of ± 0.01 percent of full scale output per degree Fahrenheit.
Similarly, a uni-directional differential pressure transducer must have superior durability factors taken into consideration when being engineered. It should offer high level output signal amplification for various types of applications, namely industrial, aerospace, and marine related. The ranges of pressure to measure should be 0-500 PSID to 0-5000 PSID. It should be fully functional at temperatures between -40 degrees F and +250 degrees F (or -40 degrees C to +121 degrees C). Solid, flawless stainless steel construction is required.
These types of pressure transducers as well as other models are offered by Paine Electronics.
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