One of the frontier of the spaceflight to be overcome in the next years is the use of organic elements to integrate the on board automated or robotic systems. The adoption of these technologies on board requires their space qualification that is the possibility of testing and experimenting their behavior at low cost in space. So that, the opportunity offered by CubeSat or Microsatellite missions, able to assure the test on field of fundamental parts of the basic elements of such systems, has a crucial role. The ambitious target from now on is the creation of an autonomous system where satellite position determination and magnetic attitude control might be performed by bio-sensors and bio-actuators capable autonomously and promptly to react to the environment variations. The present paper shows a proof-of-concept study of the innovative design for magnetic attitude control system based on biosensors able to detect variations of the Earth's magnetic field in LEO satellite mission and bio-elements capable to provide appropriate feedbacks to steer the activation by pulses of attitude control system. It has been proven through in vitro experiments that suitable organic compounds or aqueous solutions of biomolecules undergo to changes in the acid-base equilibrium when exposed to variations of magnetic field, even at low intensities. Using this concept it can be derived that measurable variations of the pH of the compound might be determined by magnetic field variations: thus, it might be possible to design a new class of magnetic biosensors based on special hydrogels.
|Titolo:||Microsat biomagnetic control system|
|Data di pubblicazione:||2015|
|Appare nelle tipologie:||4.1 Contributo in Atti di convegno|