Droplet sizing calibration of the Phase Doppler Particle Analyzer
The Phase Doppler Particle Analyzer (PDPA) is an LDV-based instrument for simultaneous measurement of single particle size and velocity. A PDPA calibration was performed using well-characterized liquid droplets in the 4 to 80 ..mu..m diameter range. Two test liquids were used: oleic acid and kerosene. A standard PDPA instrument and a fiber-optic probe PDPA system were tested. The standard instrument measurements agreed with expected droplet diameters to within the droplet generation accuracy for droplets above 15 ..mu..m diameter, and had a measurement accuracy of about 2 ..mu..m for smaller droplets. The fiber-optic probe system exhibited similar behavior, although the 2 ..mu..m sizing uncertainty extended to droplets as large as 25 ..mu..m. The measurement uncertainties in the small diameter ranges are in qualitative agreement with the light-scattering computations of Al-Chalabi et al. (1988) and Saffman et al. (1984). 7 refs., 4 figs.
- Research Organization:
- Sandia National Lab. (SNL-NM), Albuquerque, NM (United States)
- DOE Contract Number:
- AC04-76DP00789
- OSTI ID:
- 6086155
- Report Number(s):
- SAND-89-0133C; CONF-890737-2; ON: DE89008225
- Resource Relation:
- Conference: ASME fluids engineering meeting, San Diego, CA, USA, 9 Jul 1989; Other Information: Portions of this document are illegible in microfiche products
- Country of Publication:
- United States
- Language:
- English
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