Verfahren zur Bestimmung des Fluessigkeitsstandes einer fluessigen Phase ueber eine Ultraschall-Laufzeitmessung

DE 102005013269 A1 UPAB: 20061120 NOVELTY - A pair of electromagnetic wave sections (1) is partly submerged in liquid phase (3) while remaining stationary. An ultrasonic transmitter (21) transmits an ultrasonic pulse (41) as a sine wave to the liquid phase through one electromagnetic wave section. An ultrasonic receiver (22) receives part of the sine wave through the other electromagnetic wave section. The run time of the ultrasonic impulse between the ultrasonic transmitter and ultrasonic receiver is measured. Liquid level is determined based on the determined run time. USE - For e.g. open waters. ADVANTAGE - Eliminates need for mechanically mobile components while enabling highly accurate liquid level determination regardless of liquid surface condition.