// ORBITAL LOGISTICS AND PROPULSION TERM

Centrifuge

A centrifuge is a machine that spins rapidly to create artificial gravity or to separate materials based on density.

Centrifuge — illustration from Wikipedia
Image via Wikipedia

TECHNICAL DEFINITION

A centrifuge is a device that uses centrifugal force generated by rapid rotation to simulate gravity, test components under high G-loads, or separate substances of different densities, commonly employed in aerospace for astronaut training, material processing, and life science experiments.

BACKGROUND

A centrifuge is a device that uses centrifugal force to subject a specimen to a specified constant force – for example, to separate various components of a fluid. This is achieved by spinning the fluid at high speed within a container, thereby separating fluids of different densities or liquids from solids. It works by causing denser substances and particles to move outward in the radial direction. At the same time, objects that are less dense are displaced and moved to the centre. In a laboratory centrifuge that uses sample tubes, the radial acceleration causes denser particles to settle to the bottom of the tube, while low-density substances rise to the top. A centrifuge can be a very effective filter that separates contaminants from the main body of fluid.

READ MORE ON WIKIPEDIA

SYNONYMS & ALIASES

  • G-force simulator
  • Spinner
  • Rotator

USAGE NOTE

Astronauts train in large centrifuges to experience high G-forces similar to launch and re-entry.

DEVELOPERS

Organizations developing technology related to Centrifuge.

  • Vast

    A private company developing artificial gravity space stations. Their design relies on rotating the entire station to create centrifugal force, simulating gravity for long-duration human habitation.

  • Gravitics

    A startup developing modular artificial gravity structures called 'Star-Rings.' These large, spinning ring modules are designed to attach to existing and future space stations to provide a gravity-enabled environment.

  • Above Space Development Corporation

    Formerly known as Orbital Assembly Corporation, this company is focused on constructing large-scale rotating space stations, such as the planned Voyager Station, which will use centrifugal force to create variable levels of artificial gravity.

  • NASA Ames Research Center

    Operates some of the world's largest centrifuges, including the 20-G Centrifuge, to study the effects of hypergravity. This research is critical for understanding human physiological limits and for testing equipment for high-g environments during launch and re-entry.

  • Environmental Tectonics Corporation (ETC)

    A leading designer and manufacturer of high-performance human-rated centrifuges used globally for aerospace training. Their systems simulate the high-G forces experienced by pilots and astronauts.

  • European Space Agency (ESA)

    Operates the Large Diameter Centrifuge (LDC) at its ESTEC facility in the Netherlands. The LDC is used by European scientists to conduct a wide range of experiments in hypergravity, from biology and medicine to materials science.

  • University of Colorado Boulder, BioServe Space Technologies

    Designs and builds small centrifuges and other hardware for life science research on the International Space Station (ISS). These devices allow researchers to study the effects of partial gravity on biological samples like cells, plants, and microbes.

  • Japan Aerospace Exploration Agency (JAXA)

    Developed the Cell Biology Experiment Facility (CBEF) for the Kibo module on the ISS, which includes a centrifuge capable of generating artificial gravity from 0.1g to 2.0g for life science and biological research in space.

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