TY - GEN
T1 - Wireless soil moisture sensor based on fringing capacitance
AU - Wobschall, Darold
AU - Lakshmanan, Deepak
PY - 2005
Y1 - 2005
N2 - A soil moisture sensor was developed which was based on fringing capacitance and the increase in dielectric constant of a soil-water mixture with water content. The frequency shift of an RC oscillator connected to the capacitance sensor electrode was measured by a microcontroller. The data, in IEEE 1451 format, is communicated by a built-in RF transmitter (433MHz) to a receiver or base station for logging and display. This battery-operated sensor/transmitter is expected to have an operational life of several years.
AB - A soil moisture sensor was developed which was based on fringing capacitance and the increase in dielectric constant of a soil-water mixture with water content. The frequency shift of an RC oscillator connected to the capacitance sensor electrode was measured by a microcontroller. The data, in IEEE 1451 format, is communicated by a built-in RF transmitter (433MHz) to a receiver or base station for logging and display. This battery-operated sensor/transmitter is expected to have an operational life of several years.
UR - https://www.scopus.com/pages/publications/33847284550
U2 - 10.1109/ICSENS.2005.1597624
DO - 10.1109/ICSENS.2005.1597624
M3 - Conference contribution
AN - SCOPUS:33847284550
SN - 0780390563
SN - 9780780390560
T3 - Proceedings of IEEE Sensors
SP - 8
EP - 11
BT - Proceedings of the Fourth IEEE Conference on Sensors 2005
T2 - Fourth IEEE Conference on Sensors 2005
Y2 - 31 October 2005 through 3 November 2005
ER -