Nano and Micro SystemsABOVE: Composition sensor based on a dielectric spectroscopy technique.
Harsh-Environment Sensors for Space and Terrestrial Applications
JPL continues to develop microsensors to monitor parameters such as temperature, pressure, fluid flow rate, and mixture composition in harsh environments. While an extended version of these sensors is useful for space applications, the immediate version is for use in the oil and gas production environment. Many challenges arising from high-temperature, high-pressure corrosive environments are being resolved methodically to realize a sensor system that can be integrated into an overall system. The system integration requirement has brought about new challenges in the areas of integration mechanics, packaging, electronics, and interconnects that are being addressed by JPL by merging both customized designs and adaptation of commercial-off-the-shelf (COTS) components. One example of unique adaptation is in composition sensing that is based on dielectric spectroscopy technique. JPL has tested and qualified this sensor in different mixture ratios of different fluids. This sensor can operate at temperatures above 200 degrees Celsius.