Piezoelectric element mounted in hole drilled in high-pressure plug. Transducer used to measure depth of liquid when pressure in vessel high. New configuration transmits ultrasonic vibration directly into liquid, enhancing signal strength, accuracy, and range, yet piezoelectric element protected from high-pressure liquid.
Depth Gauge for Liquids Under High Pressure
NASA Tech Briefs ; 11 , 1
1987-01-01
Miscellaneous
No indication
English