Sensors & Electronics
Physical Property Sensors
In Situ Ground Water Probe (22)
Problem: Develop in situ probe to measure the temperature, pH, and concentration of key ions (Cl, Br) of ground water
Project Activity Scope (from Technical Overview Chart): Mechanisms through Instruments
PNNL Solution:
- Designed probe with three sensors mounted coaxially in 1.12-inch-dia. tube
- Designed long-lasting reference electrode using capillary salt bridge
- Demonstrated probe performance
- NOTE: Innovation was granted US patent #5,490,916
- NOTE: Commercialized through license to Instrumentation Northwest Inc.
Capabilities Employed to Meet Client Needs: Mechanical engineering/probe packaging; sensor specification and evaluation; reference electrode design and evaluation; sensor integration; probe performance testing and evaluation; project management.
Selected Links to Related Information:
- Similar Application Examples (Same or Different Technology)
Contact: John Hartman
