TECHNICAL FIELD

The disclosed technology relates generally to systems and methods for differential pressure determination.

BACKGROUND

Many industrial, aviation, pipeline, HVAC, medical, process control, etc. systems use differential pressures to provide the feedback for equipment and space control. To date, differential pressure has been determined by placing tubes connected to one sensor into the areas of interest with the sensor continuously determining the pressure difference between the ends of the tubes.

However, tubes have a number of limitations. Placement design of the tubes is cumbersome as the tubes must be the same length, tubes can not be kinked or constricted. Additionally, coiling the tube is difficult. Tubes are difficult to install as they can span between floors in building or through plenums and ducting. Over time the tubes may become constricted with insects, grim or grease. These are all contributing causes for measurement readings to fail.

As such, traditional methods of measuring differential pressure are problematic. Moreover, in most systems the differential sensor output range in terms of measurement must be pre-specified or predetermined. Since tube lengths are limited, measuring pressure differential between distant points is also not possible by existing differential pressure sensor.

