Energy harvesting is used to replace the battery of wireless instruments and sensors with an unlimited, green, sustainable, maintenance-free power supply. As the result of a joint development project between ABB and Micropelt, a WirelessHART temperature transmitter has been equipped with a thermal energy harvesting unit containing two Micropelt Thermogenerators MPG-D651 with a footprint of 6 mm² each. A temperature gradient of 30°C between the sensed medium and ambient air is sufficient to fully cover the power demand of the mesh-networked wireless instrument.
Wireless Transmitter
