Differential Pressure Gauge for Use with Liquids and Corrosive Fluids

摘要

A sensitive, rugged pressure gauge is described that was developed to determine the density (composition) and the viscous pressure loss in flowing streams of UO2‐NaK slurries. The differential pressure sensors are two metal bellows that are rigidly connected in opposition, the net displacement of which is detected by a linear variable differential transformer. The sensitivity of the unit is 0.05 mm Hg pressure and the range is 100 mm Hg with an accuracy of ±0.4%. By simply inserting various calibrated springs in the instrument it is possible to increase or decrease the range and maintain the sensitivity at 0.05% of the range.