Measuring even the smallest of flowrates
PTBnews 3.2020
25.09.2020
The optical inspection channel (yellow) allows the detection of the fluid level which arises around the vertical piston (gray).
To calibrate very small flowrates (< 0.1 ml/min), PTB is currently setting up a piston system to determine the volumetric flowrate. In this system, a liquid can be applied above the seal of the vertically moving piston with a low vapor pressure. The uncertainties normally inherent to this measurement process due to thermal inputs are minimized. An optical channel also allows leakages in the system to be detected via the detection of the liquid's level between two inspection windows.
(Technology Offer 499)
Advantages
measuring even the smallest flowrates
reducing thermal inputs
detecting leakages
Contact person for questions about technology transfer
Andreas Barthel
Phone: +49 531 592-8307
andreas.barthel(at)ptb.de
www.technologietransfer.ptb.de/en