Submersible Optical Instrumentation and Sensors

1
Submersible Optical Instrumentation and Sensors

• Brian J. Marquardt
• Center for Process Analytical Chemistry
• University of Washington
• Seattle, Washington

2
Deep Submersible CPAC/UW Raman Instrument
Alvin DSV

• 785 nm Raman System
• Ballprobe sampling interface
• Can be run autonomously or via communication with
  sub
• 7 successful dives to greater than 2150 m
• More sensitive detector needed to improve optical
  performance

3
Raman Analysis at 2200m
Analysis of Puffer Plume
Analysis of Diffuse Flow at Sully
4
Measuring Sulfate Conc. in Vent Water Samples
with Raman