Level measurement

Principle
For the experiment, a level measuring system for a two-phase liquid tank is set up and a calibration curve for the filling volumes is recorded. One task is to determine the minimum measurement volume ("dead band"). For maximum tank filling, an ultrasonic limit switch is to be tested. Level measurements play an important role for many industrial processes. Particularly for the automation of these processes, level meters are used to determine the content volume of tank systems, silos, reactors, collecting reservoirs, etc.

Tasks

1. Set up a level measurement system for continuous measurements.
2. Determine the minimum detectable filling level ("dead band") and the associated liquid volume.
3. Perform a volume calibration for two different liquids (water and oil) for the tank.
4. Record and analyse suitable ultrasound signals for a limit switch.
5. Perform a level measurement with a two-phase system (water-oil).

Related topics

• Limit value monitoring
• continuous measurement
• initial echo
• multiple reflections
• time of flight
• sound velocity
• acoustic impedance.
  

Documentation language: ENG

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