Off-world Power Generation Research - Revision history

M: /* Free-space power transfer */

2025-02-23T21:19:53Z

Free-space power transfer

← Older revision		Revision as of 21:19, 23 February 2025
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	* 2025-02 research		* 2025-02 research
	** [https://www.nature.com/articles/s42005-020-0326-2 planar Solar Pumped Laser (Spl)]		** [https://www.nature.com/articles/s42005-020-0326-2 planar Solar Pumped Laser (Spl)]
			** [https://en.wikipedia.org/wiki/Solar-pumped_laser?wprov=sfla1 SPL on Wikipedia]
	* the sun primarily produces visible light (not microwaves or gamma...)		* the sun primarily produces visible light (not microwaves or gamma...)
	* laser transmission is more efficient than microwave, except where earth's atmosphere interferes		* laser transmission is more efficient than microwave, except where earth's atmosphere interferes

M: /* Free-space power transfer */

2025-02-23T21:14:32Z

Free-space power transfer

← Older revision		Revision as of 21:14, 23 February 2025
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	=== Free-space power transfer ===		=== Free-space power transfer ===

			* 2025-02 research
			** [https://www.nature.com/articles/s42005-020-0326-2 planar Solar Pumped Laser (Spl)]
	* the sun primarily produces visible light (not microwaves or gamma...)		* the sun primarily produces visible light (not microwaves or gamma...)
	* laser transmission is more efficient than microwave, except where earth's atmosphere interferes		* laser transmission is more efficient than microwave, except where earth's atmosphere interferes

M: /* Working Systems */

2021-04-18T20:30:04Z

Working Systems

← Older revision		Revision as of 20:30, 18 April 2021
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	** Name: Photovoltaic Radio-frequency Antenna Module (PRAM) Flight Experiment (FX)		** Name: Photovoltaic Radio-frequency Antenna Module (PRAM) Flight Experiment (FX)
	** [https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9318744 IEEE paper]		** [https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9318744 IEEE paper]
	** Discussion: [https://spacenews.com/x-37b-experiment-sheds-light-on-space-solar-satellites/]		** Discussion: [https://spacenews.com/x-37b-experiment-sheds-light-on-space-solar-satellites/] [https://www.livescience.com/microwave-beam-military-space-plane.html]
	** [https://youtu.be/etHoE7ocwPI?t=2580 2021 brief video description]		** [https://youtu.be/etHoE7ocwPI?t=2580 2021 brief video description]
	** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.		** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.

M: /* Working Systems */

2021-04-18T20:23:51Z

Working Systems

← Older revision		Revision as of 20:23, 18 April 2021
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	** Attempting this challenge requires that the participating teams would excel at laser optics, photovoltaics, electrical and mechanical engineering, and overall system design. The vehicles must be lightweight yet powerful. The laser beams must be well focused while tracking the climbers, and the climbers must be adept at converting them back into electricity and then into mechanical power. If you think this sounds complicated, you're right - out of about 40 teams that tried their hand at the challenge, only 3 made it to the final challenge.		** Attempting this challenge requires that the participating teams would excel at laser optics, photovoltaics, electrical and mechanical engineering, and overall system design. The vehicles must be lightweight yet powerful. The laser beams must be well focused while tracking the climbers, and the climbers must be adept at converting them back into electricity and then into mechanical power. If you think this sounds complicated, you're right - out of about 40 teams that tried their hand at the challenge, only 3 made it to the final challenge.
	* [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes] on Wireless Power Transmission		* [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes] on Wireless Power Transmission
	* US Military PRAM (satellite-to-earth microwave power transmission)		* US Military PRAM FX
			** satellite-to-earth microwave power transmission
			** Name: Photovoltaic Radio-frequency Antenna Module (PRAM) Flight Experiment (FX)
			** [https://ieeexplore.ieee.org/stamp/stamp.jsp?tp=&arnumber=9318744 IEEE paper]
	** Discussion: [https://spacenews.com/x-37b-experiment-sheds-light-on-space-solar-satellites/]		** Discussion: [https://spacenews.com/x-37b-experiment-sheds-light-on-space-solar-satellites/]
	** [https://youtu.be/etHoE7ocwPI?t=2580 2021 brief video description]		** [https://youtu.be/etHoE7ocwPI?t=2580 2021 brief video description]
	** Name: Photovoltaic Radio-frequency Antenna Module (PRAM)
	** (what is PRAM "FX"?)
	** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.		** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.
	** Efficiency: only 8%?		** Efficiency: only 8%?

M: /* Working Systems */

2021-04-18T20:20:53Z

Working Systems

← Older revision		Revision as of 20:20, 18 April 2021
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	* The latest summary of [https://en.wikipedia.org/wiki/Wireless_power_transfer#Lasers Laser power transfer] on wikipeida		* The latest summary of [https://en.wikipedia.org/wiki/Wireless_power_transfer#Lasers Laser power transfer] on wikipeida
	* It also covers [https://en.wikipedia.org/wiki/Wireless_power_transfer wireless power transfer] in general using many techniques		* It also covers [https://en.wikipedia.org/wiki/Wireless_power_transfer wireless power transfer] in general using many techniques
			* [https://www.nasa.gov/offices/oct/early_stage_innovation/centennial_challenges/beaming_tether/index.html NASA 2009 Power Beaming Competition]
	[https://www.nasa.gov/offices/oct/early_stage_innovation/centennial_challenges/beaming_tether/index.html NASA 2009 Power Beaming Competition]		* [https://www.popularmechanics.com/flight/drones/a7966/how-it-works-laser-beaming-recharges-uav-in-flight-11091133/ LaserMotive charging an unmanned drone]
			* [http://www.spaceward.org/games space elevator, and its power beaming need]
	[https://www.popularmechanics.com/flight/drones/a7966/how-it-works-laser-beaming-recharges-uav-in-flight-11091133/ LaserMotive charging an unmanned drone]		** Attempting this challenge requires that the participating teams would excel at laser optics, photovoltaics, electrical and mechanical engineering, and overall system design. The vehicles must be lightweight yet powerful. The laser beams must be well focused while tracking the climbers, and the climbers must be adept at converting them back into electricity and then into mechanical power. If you think this sounds complicated, you're right - out of about 40 teams that tried their hand at the challenge, only 3 made it to the final challenge.
			* [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes] on Wireless Power Transmission
	[http://www.spaceward.org/games space elevator, and its power beaming need]		* US Military PRAM (satellite-to-earth microwave power transmission)
			** Discussion: [https://spacenews.com/x-37b-experiment-sheds-light-on-space-solar-satellites/]
	* Attempting this challenge requires that the participating teams would excel at laser optics, photovoltaics, electrical and mechanical engineering, and overall system design. The vehicles must be lightweight yet powerful. The laser beams must be well focused while tracking the climbers, and the climbers must be adept at converting them back into electricity and then into mechanical power. If you think this sounds complicated, you're right - out of about 40 teams that tried their hand at the challenge, only 3 made it to the final challenge.		** [https://youtu.be/etHoE7ocwPI?t=2580 2021 brief video description]
			** Name: Photovoltaic Radio-frequency Antenna Module (PRAM)
			** (what is PRAM "FX"?)
			** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.
			** Efficiency: only 8%?

	=== [http://www.aml.engineering.columbia.edu/ntm/ch2index.html Laser Basics] ===		=== [http://www.aml.engineering.columbia.edu/ntm/ch2index.html Laser Basics] ===

M: /* Free-space power transfer */

2021-04-18T20:17:04Z

Free-space power transfer

← Older revision		Revision as of 20:17, 18 April 2021
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	* Laser transmit antenna in space: 1 meter diameter per GW		* Laser transmit antenna in space: 1 meter diameter per GW
	* Receive: Several hundred meters across		* Receive: Several hundred meters across
	* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]
	* A [https://youtu.be/etHoE7ocwPI?t=2580 2021 hint] regarding US military sattelite-to-earth microwave power transmission
	** Name: Photovoltaic Radio-frequency Antenna Module (PRAM)
	** (what is PRAM "FX"?)
	** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.
	** Efficiency: only 8%?

	=== Working Systems ===		=== Working Systems ===

M: /* Free-space power transfer */

2021-04-18T20:16:19Z

Free-space power transfer

← Older revision		Revision as of 20:16, 18 April 2021
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	* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]		* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]
	* A [https://youtu.be/etHoE7ocwPI?t=2580 2021 hint] regarding US military sattelite-to-earth microwave power transmission		* A [https://youtu.be/etHoE7ocwPI?t=2580 2021 hint] regarding US military sattelite-to-earth microwave power transmission
	** ~~it's called~~ "~~PRAM~~ FX"		** Name: Photovoltaic Radio-frequency Antenna Module (PRAM)
	** only 8% ~~efficiency~~?		** (what is PRAM "FX"?)
			** "One side receives solar energy with a photovoltaic panel, electronics in the middle convert that direct current to a radio-frequency signals and the other side has an antenna to beam power away." So it sounds very modular, similar to our goals.
			** Efficiency: only 8%?

	=== Working Systems ===		=== Working Systems ===

M: /* Free-space power transfer */

2021-04-18T20:11:50Z

Free-space power transfer

← Older revision		Revision as of 20:11, 18 April 2021
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	* Receive: Several hundred meters across		* Receive: Several hundred meters across
	* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]		* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]
	* A [https://youtu.be/etHoE7ocwPI?t=2580 2021 hint] regarding US military sattelite-to-earth power transmission		* A [https://youtu.be/etHoE7ocwPI?t=2580 2021 hint] regarding US military sattelite-to-earth microwave power transmission
			** it's called "PRAM FX"
			** only 8% efficiency?

	=== Working Systems ===		=== Working Systems ===

M: /* Free-space power transfer */

2021-04-18T20:10:07Z

Free-space power transfer

← Older revision		Revision as of 20:10, 18 April 2021
Line 40:		Line 40:
	* Receive: Several hundred meters across		* Receive: Several hundred meters across
	* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]		* Wireless Power Transmission - [http://www.kenkai.jaxa.jp/eng/research/ssps/hmi-lssps.html Japan's JAXA's working notes]
			* A [https://youtu.be/etHoE7ocwPI?t=2580 2021 hint] regarding US military sattelite-to-earth power transmission

	=== Working Systems ===		=== Working Systems ===

M at 22:58, 7 February 2019

2019-02-07T22:58:00Z

← Older revision		Revision as of 22:58, 7 February 2019
Line 53:		Line 53:

	* Attempting this challenge requires that the participating teams would excel at laser optics, photovoltaics, electrical and mechanical engineering, and overall system design. The vehicles must be lightweight yet powerful. The laser beams must be well focused while tracking the climbers, and the climbers must be adept at converting them back into electricity and then into mechanical power. If you think this sounds complicated, you're right - out of about 40 teams that tried their hand at the challenge, only 3 made it to the final challenge.		* Attempting this challenge requires that the participating teams would excel at laser optics, photovoltaics, electrical and mechanical engineering, and overall system design. The vehicles must be lightweight yet powerful. The laser beams must be well focused while tracking the climbers, and the climbers must be adept at converting them back into electricity and then into mechanical power. If you think this sounds complicated, you're right - out of about 40 teams that tried their hand at the challenge, only 3 made it to the final challenge.

			=== [http://www.aml.engineering.columbia.edu/ntm/ch2index.html Laser Basics] ===

	=== Coupled PV cells and Lasers ===		=== Coupled PV cells and Lasers ===