Level Measurement in Oil and gas industries
The objectives of level measurement include direct methods such as dip-sticks, dip-rods, weighted gauge tape, sight glasses, tubular or reflex, magnetic type sight gauges, floats, indirect methods like the Diaphragm-box System and hydrostatic pressure meters, open and closed vessels, dry legs, calibration formulas, bubble tube systems, displacement devices, torque tube, conductivity level sensors, automatic tank gauge (ATG) level system, sonic and ultrasonic level sensors, level transmitters, level trolling, interface level, level switches, high and low level alarms.