AN IN-LINE DENSITY AND VISCOSITY SENSOR
In-line density and viscosity sensors for liquids are developed to utilize measurements of differential pressure across a nozzle and a coiled capillary tube respectively, with known flowrates through each provided by a flow generator. Theory and principles of operation and instructions for calibration and use of the sensors are discussed, along with design consideration for the sensors and associated equipment. A calibration of the sensors demonstrated that viscosity and density each could be measured with a computed standard deviation of one percent. Viscosity was varied over the range of about 1 to 11 centistokes whereas density of the fluids used was near 0.8 g per cc. Application of similarity considerations is used to make the results applicable to other liquid densities.
- Sponsored in part by Department of Defense Calibration Coordination Group, Pomona, Calif.
National Bureau of StandardsFluid Meters Section
Washington, DC United States 20234
Department of DefenseCalibration Coordination Group
Pomona, CA United States
- Olsen, L O
- Ruegg, F W
- Publication Date: 1974-11
- Pagination: 21 p.
- TRT Terms: Calibration; Capillarity; Densitometers; Density; Detectors; Flow; Flowmeters; Handbooks; Instruments for measuring loads or pressure; Liquids; Measurement; Performance; Pressure; Theory; Tubing; Utilization; Viscometers; Viscosity
- Old TRIS Terms: Capillary tubes; Density mass/volume; Liquid flow; Pressure measurement
- Subject Areas: Research;
- Accession Number: 00093500
- Record Type: Publication
- Source Agency: National Technical Information Service
- Report/Paper Numbers: NBSIR-74-620 Final Rpt.
- Files: NTIS
- Created Date: Jan 14 1976 12:00AM