Flow Systems has designed and engineered several test stands to test measure mass air flow sensors including:

Feature Description Fully AutomatedStand-alone MAFS test stand with lowest uncertainty, best controller software, and highest automation Semi-AutomatedMAFS test stand for when “best of class” is not needed, but manual operation is not preferred ManualMAFS test stand when minimal requirement are needed and manual operation is acceptable
What is the mass flow accuracy? ±0.40% ±0.54% ±0.65%
How automated is this test stand? Highly Automated Moderately Automated Minimally Automated
How much can this test stand be customized to fit user requirements? Highly Customizable Moderately Customizable Minimally Customizable
What is the underlying measurement equipment? Gas Flow Calibrator Flow Controller: FC500-FC Flow Computer: FC175

These test stands have the characteristics listed below:

Traceable to NIST

All Flow Systems air test stands utilize sonic nozzles which have been calibrated and are traceable to National Institute of Standards and Technology (NIST).

Built on Sonic Nozzle (Critical Flow Venturi) Technology

Flow Systems Air Flow Test Systems utilize sonic nozzle (also called "critical flow venturis" or "critical flow nozzles") technology for measuring mass flow of air.

Built with Commercial Off-The-Shelf (COTS) Components

All Flow Systems air flow test system designs, the test system controller, data acquisition and control subsystems, and all instrumentation are standard and readily available Commercial Off-The-Shelf (COTS) items. This ensures that service or replacement of any item can be achieved in a timely manner, providing for high availability of our products. When applicable, this includes all of the Unit Under Test related instrumentation specified by the customer.

Managed by LabVIEW™ Based Controller Software

Sophisticated Windows™-based controller software was developed by Flow Systems for test automation and data management using National Instruments™ LabVIEW™. Controller software can be customized to fit customer needs including integration with external database systems.