Motorola Electric Field Imaging
An integrated circuit that generates and detects a low-level electric field—and powers and supports a microcontroller unit—all in a single chip.

Details

Now it is a small, non-invasive, sensing system that can take measurements varying from liquid levels to grip pressure.

The precursor to this system is used to make SeatSentry smart airbags, which are featured in Honda cars. Now it is small enough to be implemented for new uses in many other devices.

To make the technology easier to use, software is available to program the system for new uses.

The sensor works well for liquids—it can measure liquid level without introducing anything into it (important for caustic chemicals). It can be used with plastic and glass containers.

The conductive wires can be embedded under smooth-top glass ranges to sense if a pan is removed, or to tell if the liquid is boiled off, and then shut off burner. It could also sense a boil-over and turn the burner down.

The sensor can be used to sense grip on appliances such as irons, hairdryers, and lawnmowers, shutting these devices off when they are no longer in use.

Motorola Press Release

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