The Development of a Passive, Wireless Sensor System
Hasegawa, Natsuki
Today many sensor systems are available off the shelf and allow measurement of a wide range of environmental parameters such as humidity, temperature, pressure or the concentration of various chemical species. However, nearly all these sensor systems suffer from two potential drawbacks. The first is that they are active sensors, meaning that they are continuously powered and thus needs a constant power source such as a battery. This leads to l...