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Jodie Gail Pope (Fed)
Mechanical Engineer
Dr. Jodie Pope is a mechanical engineer specializing in liquid and gas flow metrology in the Sensor Science Division at the National Institute of Standards and Technology.
Dr. Pope joined NIST in 2011 to study how the calibration of turbine flow meters depends on the properties of the fluid being metered. One result of this research was to replace hazardous hydrocarbon liquids then used to calibrate turbine flow meters at NIST (and elsewhere) with benign, surrogate liquids. A second result was to increase the accuracy of flow measurements made when a turbine meter is calibrated with one fluid at one temperature and then used to measure the flow of another fluid at another temperature. During her time at NIST, Pope’s research has evolved to include:
- Measuring rapidly changing gas flows such as those encountered when vehicles are refueled with compressed natural gas or high-pressure hydrogen gas.
- Design and development of a transportable system that can test the accuracy of gaseous fuel dispensers in the field.
- Use of microwave and dynamic acoustic tracking techniques to measure high pressure (> 7 MPa) flows from large, unthermostated tanks.
- Developing dynamic liquid and gas flow standards.
- Coriolis meter behavior and corrections for cryogenic liquid flow metrology such as liquified natural gas.
Pope is currently the lead on a CHIPS for America project titled “Gas Flow and Properties: Standards and Models for Flow Metering Semiconductor Gases at Flows from 10 μL/min to 1 L/min”. This project is providing standards for the metering of hazardous gases and includes physical models for meter performance across gas species.
Dr. Pope also serves as a technical assessor for the National Voluntary Laboratory Accreditation Program (NVLAP).
Research Projects
- Acoustic gas thermometry for high pressure gas flow metrology
- Surrogate fluids for hydrocarbon liquid calibrations
- Coriolis meters for use in gaseous refueling dispensers
- Field test methods for gaseous refueling dispensers
- Temperature sensitivity of liquid flow meters
- Flow Metering and Properties for Semiconductor Process Gases