ABSTRACT
Pressures are measured with a manometer. Many manometers are essentially a flexible membrane across which a pressure differential is applied. The forces arising from the pressure difference bend the membrane, and sensors that are fixed on or integrated with the membrane (e.g., a strain gauge) convert the membrane’s deflection into an electrical signal which is proportional to the pressure difference. Thus, measuring a pressure is simple; getting the pressure to the membrane may not be simple.
