Technology for self-powered sensors and vibration energy harvesting

Vibration energy harvesting

8power’s vibration energy harvesting technology produces electrical power for sensors, local processing and wireless communication.

Other companies have developed this type of device before, but 8power has a unique, patented, technical approach, developed at the University of Cambridge.

By making novel use of a phenomenon known as parametric resonance, 8power’s devices are able to harvest up to 10x the power of competing devices under comparable conditions, measured using a figure of merit for vibration energy harvesting devices (Priya and Inman, Energy Harvesting Technologies, Springer US, 2009).

Wireless sensor platform for condition monitoring

8power’s sensor system combines leading wireless communications, sensors, local processing and energy management.

It is designed to support wireless condition monitoring in a range of applications.

The system integrates with a data platform to allow sensor readings to be captured and analysed in real time, and to provide long-term insights such as prediction of failures.

MEMS energy harvesting

We are also able to manufacture miniaturised vibration energy harvesting devices taking advantage of parametric resonance to give significantly higher power output than competitors.

These are produced using Micro Electro Mechanical Systems (MEMS) technology, with the same manufacturing processes as accelerometers and similar sensors. This means that these devices can ultimately be produced in very high volumes and can integrate in the same package with other types of sensor, processing and communications.

Other benefits include small size and tolerance of extreme temperatures, well beyond the range of battery technology.

Ultra-low-power MEMS sensors

Using MEMS technology, 8power is able to create completely new types of sensor that are extremely small and consume tiny amounts of power.

We’re still developing the technology, so we can only talk about details if you contact us.

This technology is attractive because it can cut sensor power consumption in continuous operation to as little as 10 microwatts – 100x to 1000x lower than conventional approaches.