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UltraPath functio n & salinity

UltraPath functio n & salinity. Mathias Belz. a World Precision Instruments, Inc. , 175 Sarasota Center Blvd, Sarasota, FL-34240, USA b World Precision Instruments Deutschland GmbH, Saarstr . 23 D-61169 Friedberg, Germany . Overview. Design Optical Design

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UltraPath functio n & salinity

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  1. UltraPath function & salinity Mathias Belz aWorld Precision Instruments, Inc. , 175 Sarasota Center Blvd, Sarasota, FL-34240, USA bWorldPrecision Instruments Deutschland GmbH, Saarstr. 23D-61169 Friedberg, Germany

  2. Overview • Design • Optical Design • Salinity offset & emission angle in waveguide • Conclusion

  3. Samples • CDOM • Wavelength range: 300 – 700 nm • Pathlength: 2, 10, 50, 200cm • Cell diameter: 2mm, Volume: 15mL • 5µAU/cm to 1 AU/cm, 0.002 m-1 to 200 m-1

  4. Concept Output Fiber Input Optical Fiber Light Guiding Cell Wall Light source Detector Sample Output Sample Input

  5. Protection buffer Total reflection coating Input optical fiber Output fiber Out flow In flow Protection buffer Quartz tubing Total reflection coating Input optical fiber Output fiber Out flow In flow Type 1 & Type 2 Type I Type II

  6. Setup coupling: 2 cm coupling: 10 cm input fiber sample input sample output coupling: 200 cm coupling: 50 cm output fiber (switch) optical fiber tubing Teflon AF

  7. Effective Pathlength

  8. Salinity offset

  9. Lightguidance & Salinity, 670nm

  10. Lightguidance & Salinity, 670nm

  11. Lightguidance & Salinity, 365nm

  12. Lightguidance & Salinity, 365nm

  13. Conclusions • Preliminary results • Thank you for your attention

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