I would like to know which MFCs can be used to build a general gas-sensing characterization unit. I want to know their general specifications also.
We have been using MKS Inc. products for a long time and their measurements are actually very accurate:
https://www.mksinst.com/f/p4b-mass-flow-controller
Since you need to know the range of your flow rate to choose an accurate MFC, I suggest to first use a mass flow meter to find out the range of MFC that you need.
You can find all the specifications of MKS products on their website.
A word of caution: If you are going to do PIV measurements, use MFC before mixing particles with the gas. If you mistakenly install MFC after the mixture of gas and particles, there is a chance that you will break the MFC.
There are several types of MFC, based on distinct operating principles. For the specific case of a Mass Flow Controller (MFC) operating by sensing the temperature change along the heated section of a capillary tube; its output signal (V) could be given as: V = K·Cp·Qm = K·Cp·ρ·Qv, where K is a constant (independent of the gas), Cp stands for the gas specific heat, ρ for its density, Qv for volumetric flow (all that for normal conditions); while Qm is the mass flow.
- Badges
- Science topic
- Similar topics
- Chemistry
- Sulfites
- Inorganic Chemistry