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Tag: controller

  • What type of fluid can I flow through my Alicat flow instrument?

    What type of fluid can I flow through my Alicat flow instrument? Alicat devices can be customized to flow a wide range of fluids, however each device has its own unique capabilities. Taking a look at gas flow vs. liquid flow devices can help you get the most out of your instruments while minimizing risk […]

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    Operating principle: Laminar differential pressure mass flow technology

    Alicat mass flow instruments operate on the principle of differential pressure-based laminar flow measurement.

  • mfc bioprocessing flow control
    Addressing scaling challenges of bioreactor sparging using mass flow control

    Addressing scaling challenges of bioreactor sparging using mass flow control This article was originally published in Fluid Handling Pro on June 29, 2021. Read the original article here. Bioreactor sparging systems are designed to introduce oxygen to feed cell cultures, while removing carbon dioxide to prevent toxic buildup. Various bioreactor features and components are critical to […]

  • Turbulent non-Newtonian liquid flow
    High accuracy, low-flow color dosing with Coriolis mass flow meters

    High accuracy, low-flow color dosing with Coriolis mass flow meters Many liquid laundry detergents are easily recognized by their distinct blue color. The addition of such blue coloring and other fluorescing agents adds trace amounts of dye to fabrics, both counteracting discoloration and improving brightness. Challenge: Inaccurate, inefficient pumps lead to noticeable variation Modern blue […]

  • Alicat mass flow controllers resist back pressure contamination

    Evaluation of Alicat Mass Flow Controllers’ Resistance to Back Pressure Contamination Mic Chaudoir, Ph.D. Rohan Morajkar, Ph.D. Introduction Mass flow controllers (MFCs) are essential to many modern production and test processes. Precise and reliable flow control is particularly important for efficient, sustainable production in applications such as glass fabrication and bioprocessing. Within such processes, MFCs […]

  • More efficient flow control for bioreactors and bioprocess systems

    More efficient flow control for bioreactors and bioprocess systems Mic Chaudoir, Ph.D. Chip Stacy, AbbVie Senior Engineer of Digital Systems As the need for potent and specific pharmaceuticals grows, pharmaceutical manufacturers have turned to biologics to meet the increasing needs and find treatments for complex and currently untreatable conditions including cancer and myriad genetic diseases. Biologics […]

  • Bleeding your liquid device tutorial

    Bleeding your liquid device tutorial Alicat differential pressure based liquid flow meters and controllers should only be used to flow liquids. Sometimes, however, a liquid contains trapped air or gas bubbles. It is critical that the device only measures the pressure of the gas-free liquid flowing through the device (no bubbles), or readings will be […]

  • Prototype Inchfab ICP-CVD System
    Inchfab uses mass flow and pressure control in nanoscale fabrication systems

    Inchfab uses mass flow and pressure control in nanoscale fabrication systems Mitchell Hsing, Ph.D., CEO & Co-Founder of Inchfab; Parker Gould, Ph.D., CTO & Co-Founder of Inchfab Mic Chaudoir, Ph.D., Alicat Scientific Market Manager Background: Nanoscale fabrication systems & Inchfab The increasing demand for computing power over the past 60+ years has led to exponential […]

  • Maintaining cryogenic temperatures with pressure control

    Maintaining cryogenic temperatures with pressure control Cryogens are substances that liquefy at or below 120 K under standard pressure (760 Torr). They are commonly used in applications to keep liquefied substances at extremely cold temperatures, including cryopreservation, rocket propulsion, and medical imaging. Two of the most well-know cryogens are liquid nitrogen and helium. Liquid nitrogen […]

  • Biosphere 2
    Biosphere 2 studies the impacts of drought on tropical rainforests using flow measurement

    Biosphere 2 studies the impacts of drought on tropical rainforests using flow measurement As the Earth’s climate changes, scientists expect that a hotter, drier world will have severe impacts on global ecosystems, with many areas subjected to increased water stress and/or drought. However, it is difficult to forecast the specific impact climate change will have […]