Sensors & Electronics
Physical Property Sensors
Non-contact Moisture Measurement (133)
Lab Test of Sensor in Simulated Waste
Problem: Develop non-contact method to determine moisture percentage in radioactive-chemical waste materials
Project Activity Scope (from Technical Overview Chart): Mechanisms through Instruments
PNNL Solution:
- Completed laboratory tests showing eddy current signal correlation to moisture level
- Establish techniques for quantitative data interpretation
- Successfully demonstrate method in waste tank to meet application requirements
Capabilities Employed to Meet Client Needs: Electromagnetic properties of dry and moist solids; modeling of electromagnetic field interaction with materials as a function of eddy current frequency; eddy current measurement methods including probe/coil design; electronics design for driving eddy current probes; electronics design for signal processing and detection; software for data analysis; mechanical design for probes and test fixtures; statistical analysis of detected signals; test planning and reporting.
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Contact: Michael Watkins
