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Tag: pressure

  • Flexboy single use bag
    Inflating single-use bioreactor bags using dual-valve pressure controllers

    Inflating single-use bioreactor bags using dual-valve pressure controllers Background: installing & inflating single-use vessels Single-use bioreactors (SUBs) offer key advantages including increased sterility and subsequently simpler and faster changeover between batches or campaigns. After the product is removed from the bioreactor, the single-use bioreactor bag can simply be removed from its holding container and disposed […]

  • Inverse pressure control tutorial: Switching from forward to back pressure control

    Inverse pressure control tutorial: Switching from forward to back pressure control A forward pressure controller can be reconfigured into a back pressure controller by following two simple steps. First, you must swap the valve location (tutorials linked below). You can then activate inverse pressure control using either the front display or serial communications. We first […]

  • 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 […]

  • Types of pressure controllers

    Understanding pressure controller types: pressure reducing regulators and controllers, back pressure controllers, and closed volume pressure controllers.

  • milky way galaxy
    Overcoming the challenges of high-speed aerodynamic tests using pressure control

    Overcoming the challenges of high-speed aerodynamic tests using pressure control Aerospace development and testing applications often require high flow rates to pressurize large volumes. One example is in gas reservoirs, where the reservoir must be pressurized prior to conducting high-speed aerodynamic tests. Application needs & challenges A customer approached Alicat looking to pressurize a 200 […]

  • Veloce echelle spectrograph utilizes closed-volume pressure control

    Veloce echelle spectrograph utilizes closed-volume pressure control Dr. James Gilbert Dr. James Gilbert was the technical lead for the Australian National University’s development of the Veloce echelle spectrograph, which is now installed on the 3.9-meter Anglo-Australian Telescope at the Siding Spring Observatory in New South Wales, Australia. Veloce integrates a highly-customized Alicat closed-volume pressure controller […]

  • Achieving more repeatable vacuum coatings with faster, higher precision pressure control

    Achieving more repeatable vacuum coatings with faster, higher precision pressure control Process control engineers who work in vacuum coating design environments in which they can create a vacuum (any area with pressures below atmospheric pressure) in a sealed chamber. In order to precisely control a reaction between process substances, any atmospheric gases must be removed […]

  • Increasing vacuum deposition speed and stability with upstream pressure control

    Placing pressure control devices upstream of the chamber in vacuum coating applications saves time, cost, and increases accuracy in vacuum deposition tools.

  • close up of flowing gas
    Fast, accurate leak testing using one flow controller

    Fast, accurate leak testing using one flow controller Looking for a fast, accurate way to leak test your system? Whisper low pressure drop controllers provide a convenient, single instrument solution. A standard controller may also work, however stable leakages are best detected when the meter generates minimal pressure drop (line pressure due to frictional resistance). […]

  • close up of flowing gas
    Controlling gas flows for sputtering

    Controlling gas flows for sputtering Sputtering is a technique used to deposit thin film coatings onto materials, often to give them specific optical, photovoltaic, or mechanical properties. Precisely controlling the gas flows into a sputtering vacuum chamber works to ensure the highest possible sputter yields. In the process of sputtering, a plasma gas, typically argon, […]