Level Measurement in Oil and Gas Industries
• Direct methods: dip-sticks, dip-rods, weighted gauge tape, sight glasses, etc.
• Indirect methods: Diaphragm-box System, hydrostatic pressure meters, open/closed vessels, dry legs, calibration formulas, etc.
• Level sensors: automatic tank gauge, sonic/ultrasonic, level transmitters, level trolling, interface level, level switches, high/low level alarms.