For TDK I have invented and patented a technology allowing Energy and Data transmission through metal, based on NFC technology. It is called Acoustic Data Link (ADL).
The product pre-development according to my concept allows to combine the so-called ADL Communication sub-assembly module (in a miniaturized form factor) with a variety of sensors or actuators, to be able to address a variety of special applications. For demonstration purpose, together with my network, a conventional size demo was built up, allowing to operate an environmental MEMS Sensor (Bosch BME xxx for temperature, humidity, air pressure) through a 4 mm thick steel plate, and to visualize the measured information with a customized Display.
I have also described the technology in a podcast: TDK – POTCASTVIDEO
And there were some press articles that mentions this technology
[1] https://www.elektronikpraxis.de/daten-und-energie-durch-metallwaende-uebertragen-a-277f617be9cda61644d29cd0b0554611/
[2] https://www.power-and-beyond.com/through-metal-data-and-energy-transmission-by-means-of-piezo-acoustic-ultrasonic-technique-a-1077389/
