MIT has it’s head up it’s collective ass if they think this is a new concept.
MWD - Measurement While Drilling - is in use in every oil patch in the world and has been for years and uses sensors at the drill bit far underground and sends the data via pulsations in the watery “mud” mixture that fills the hole and removes the drilled material.
From https://www.rigzone.com/training/insight.asp?insight_id=296&c_id=
“MWD uses gyroscopes, magnetometers and accelerometers to determine borehole inclination and azimuth during the actual drilling. The data is then transmitted to the surface through pulses through the mud column (mud pulse) and electromagnetic telemetry. Decoded at the surface, the data can also be transmitted to an offsite location immediately. “
Fantastic! Thanks for sharing that. It is obviously another sales pitch for funding.
““MWD uses gyroscopes, magnetometers and accelerometers to determine borehole inclination and azimuth during the actual drilling. The data is then transmitted to the surface through pulses through the mud column (mud pulse) and electromagnetic telemetry. Decoded at the surface, the data can also be transmitted to an offsite location immediately. “”
Friggen BRILLIANT. People have NO CLUE what’s going on in so many areas. In oil, most people are probably still thinking Beverly Hillbillies.
From Wikipedia: "Downhole electrical and mechanical power is provided by downhole turbine systems, which use the energy of the “mud” flow, battery units (lithium), or a combination of both."
MIT's development uses the pulses from above to power the sensor, like your car transmitting radio waves to both communicate with and power with the key's transponder ship or contactless credit card.
That covers data TRANSMISSION...not simultaneously powering the electronics. In MWD there is plenty of energy available at the drill point that can be tapped to power electronics. In a remote ocean sensor....not so much.