Wi-fi charging nodes inside TVAC chamber. | Supply: Astrobotic
Astrobotic Know-how Inc. this week introduced that it has efficiently accomplished flight mannequin acceptance testing of its wi-fi charging system for the lunar surroundings. The Pittsburgh-based firm stated this marks a serious development in enabling sustained operations on the Moon.
The light-weight, ultra-fast wi-fi charging system proved it may perform and supply sufficient energy for programs to outlive the 14-Earth-day lunar evening. Astrobotic developed the system in partnership with wi-fi charging supplier WiBotic. That they had help from Bosch, the College of Washington, and the NASA Glenn Analysis Heart in Cleveland.
“That is the muse for a unified, interoperable energy customary for the Moon and Mars,” stated John Thornton, CEO of Astrobotic. “We’re providing a wi-fi charging answer that may help cross-agency, cross-industry missions, constructed to outlive the harshest planetary environments. In case your belongings want reliable energy on the floor, that is the plug they’ll want.”
Wi-fi energy to allow lunar science missions
A wi-fi technique of energy switch is essential for automated and astronaut-held programs on the lunar floor, in line with Astrobotic. These units are related and disconnected usually, subjecting them to abrasive lunar regolith mud that may accumulate on conventional connectors. This reduces their effectivity and renders them non-operable, stated the firm.
When on the lunar floor, the wi-fi system would ship energy from an Astrobotic lunar lander or Vertical Photo voltaic Array Know-how (VSAT) platform. This allows it to energy science missions and rovers to outlive the lunar evening and even present simple charging of astronaut-held instruments.
Energy from the supply is transformed to wi-fi energy by a WiBotic transmitter circuit and is distributed to the system by a transmitter antenna coil.
Underneath earlier checks carried out at NASA’s Kennedy Area Heart in Florida, Astrobotic’s wi-fi charging system was lined in 4 cm (1.5 in.) of regolith and skilled no efficiency degradation to energy switch.
Astrobotic passes rigorous checks
Astrobotic’s CubeRover with a wi-fi charging node drives as much as a second energy node to cost. | Supply: Astrobotic
The acceptance testing marketing campaign for the wi-fi charger flight mannequin included totally different checks over the course of 4 months. The primary was a thermal vacuum chamber (TVAC) take a look at of the system in December 2024 at Astrobotic’s headquarters. Throughout these checks, the system demonstrated correct functioning in a simulated lunar surroundings with nearly no environment.
Subsequent, the businesses carried out an much more life like lunar environmental take a look at in January at NASA’s Glenn Analysis Heart. Throughout these checks, the system efficiently operated inside a TVAC chamber containing simulated lunar regolith often known as a “soiled TVAC,” dropping to -292 °F.
The ultimate two checks, carried out at Astrobotic’s headquarters, ensured the system would survive the pains of launch to area. In late January, the system endured vibration testing. This concerned mounting it to a shaker desk and subjecting it to the vibrations it might expertise throughout launch.
Lastly, the workforce carried out electromagnetic interference (EMI) testing. This ensured that the wi-fi charger’s electronics wouldn’t intervene with these of the rocket.
“Passing acceptance testing is a serious milestone — it means the system has met all of the rigorous efficiency and environmental necessities and is now formally flight certified,” stated Masoud Arabghahestani, senior thermal engineer at Astrobotic.
“This validation marks the end result of years of design, engineering, and testing, and now, we’re lastly able to take this technique to the Moon. With its effectivity and confirmed reliability, this technique will open the door to a broader vary of science missions, enabling researchers to discover extra areas of the lunar floor, collect higher-quality information, and push the boundaries of what’s attainable in lunar exploration.”
The workforce developed the system beneath a NASA Tipping Level contract awarded by the company’s Area Know-how Mission Directorate. A 125 W wi-fi charger mannequin is now commercially out there for superior energy options for area functions. A extra highly effective 400 W wi-fi charger mannequin is present process additional testing. This mannequin has seen energy switch efficiencies as excessive as 85%.
