One of the tested modules has been successfully used to
power an autonomous sensing node, which includes a passive
temperature sensor, low-power interface electronics, and
measurement information transmission via an RF link. When
a temperature difference of about 34 K is applied across the
TEG, the autonomous system turns on and steadily transmits
the measurement readings according to a preset temporization
rate, with a power consumption of about 31.8 mW during
the transmission. Such autonomous sensing nodes may conveniently
find application, for instance, in industrial automation
for monitoring machinery and parts that become warm during
operation.