By Andi Anderson
A researcher at Purdue University has designed and tested an innovative free-flying robotic centrifuge to support research and process applications in space. This patent-pending system, known as GRAVI-BOT (GRAvity-Variable Instrument for Biological and Operational Tasks), offers a unique solution for experiments in microgravity environments.
GRAVI-BOT operates using compressed gas thrusters to generate rotational acceleration, eliminating the need for traditional motors, rotors, or electromagnetic components. This lightweight system allows precise positioning through built-in sensors, enabling it to be adjusted to specific locations as needed. Unlike conventional centrifuges, it features an onboard air compressor that supplies a PET (polyethylene terephthalate) compressed air tank. Additionally, the system is designed to be portable, foldable, and inflatable, making it practical for space applications.
Developed by D. Marshall Porterfield, a professor at Purdue’s College of Agriculture and College of Engineering, the system is intended to enhance space-based biomedical and biotechnology research. It can also be applied to material and fluid separation processes in low-gravity environments.
The research team has successfully validated GRAVI-BOT and disclosed it to Purdue Innovates' Office of Technology Commercialization. A patent application has been submitted to secure the intellectual property. Industry partners interested in developing or commercializing this technology can reach out to Dipak Narula at dnarula@prf.org, referencing track code 69696.
A short video demonstrating GRAVI-BOT’s capabilities is available online, showcasing its potential in space research.
Photo Credit: purdue-university
Categories: Indiana, Equipment & Machinery