Liquid Level Measurement
Machine vision systems measure fill levels in liquid handling devices
Machine vision provides greater robustness for automated IVD processesThe correct liquid level of blood or other body liquids is crucial for a robust performance of the subsequent chemical analysis making sure that sufficient sample liquid is available. The sample may contain different phases (e.g. blood after centrifugation) where the thickness of the different layers is important for the chemical analysis (buffy coat).
To ascertain a reliable result, chemical analysis requires a certain amount of sample. It is, therefore, crucial to ensure that there is sufficient blood or body fluid available for testing. Also, after a blood sample has been centrifuged, the resulting phases (plasma, buffy coat and red blood cells), often need to be measured to ensure an effective separation and the availability of enough sample.