Optical wet steam monitor
A wet steam monitor determines steam particle size by using laser doppler velocimeter (LDV) device to produce backscatter light. The backscatter light signal is processed with a spectrum analyzer to produce a visibility waveform in the frequency domain. The visibility waveform includes a primary peak and a plurality of sidebands. The bandwidth of at least the primary frequency peak is correlated to particle size by either visually comparing the bandwidth to those of known particle sizes, or by digitizing the waveform and comparing the waveforms electronically. 4 figures.
- Issue Date:
- OSTI Identifier:
- 6645372
- Assignee:
- Martin Marietta Energy Systems, Inc., Oak Ridge, TN (United States) PTO; EDB-95-031080
- Patent Number(s):
- US 5383024; A
- Application Number:
- PPN: US 8-267919
- Contract Number:
- AC05-84OR21400
- Resource Relation:
- Patent File Date: 6 Jul 1994
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 47 OTHER INSTRUMENTATION; MEASURING INSTRUMENTS; DESIGN; STEAM; PARTICLE SIZE; SPECTRA; VISIBLE RADIATION; ELECTROMAGNETIC RADIATION; RADIATIONS; SIZE 440600* -- Optical Instrumentation-- (1990-)