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Sensitivity tunable inductive fluid conductivity sensor based on RF phase detection
DOI:10.1109/JSEN.2007.901570.png)
Abstract
En 中文
New results are presented for a sensitivity-tunable, inductive fluid conductivity sensor based on RF phase detection. An electronically controlled RF phase shifter allows the sensor to function in a wide range of conductivities from 2-70 mS/cm and helps tune the sensitivity of the response in a selected conductivity range. The noncontact nature of the sensor makes it suitable for corrosive fluids. Furthermore, the small size of the sensing element (1 inch. Sq x 6 mm thick) makes it suitable for compact in-line and hand held monitoring systems.
Keywords:
corrosive fluid sensor
phase sensor
salinity sensor
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