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Micro Photometers & Spectral Sensors for the NeSSI Platform

Explore the latest advancements in micro-spectral sensors, multi-channel photometers, and spectral sensing technologies for process monitoring. Learn about applications in chemical, beverage, and water industries with a focus on cost-effective, multi-point monitoring solutions.

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Micro Photometers & Spectral Sensors for the NeSSI Platform

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  1. Micro Photometers & Spectral Sensors for the NeSSI Platform IFPAC 2006 NeSSI Update John Coates Coates Consulting

  2. Micro Photometers and Micro-Spectral Sensors • A new way of viewing process monitoring… a paradigm shift (need a new term)? • Low cost and multi-point monitoring (smart valves?) • Not a replacement for instrumentation…but a major enhancement • Micro Photometers • Multi-channel…multi-component • Delta composition monitoring • Micro Spectral Sensors • Full spectral representation • Flexible and programmable devices • Concentration and composition monitoring • Delta composition monitoring

  3. Multi-Channel Photometric Sensor (Absorption & DRI)

  4. Modeling the Photometric Sensor

  5. Example: Binary Mixture Analysis

  6. Implementation Spectral Sensing:On-line NeSSI-based Systems Integrated Spectral Sensing Module Example Format: IntraFlow

  7. Spectral Engine…How it Works • Spectral selective sensing on a chip • Color Sensor • Full Spectral Sensor • Integration of chip with all functional components • Light Source • Sample Interface (Cell) • Electronics • Micro-electronics with embedded intelligence and communications • Correlates to Spectral Data Spectrometer Function Full Spectral Color Example Spectrum Chip Scale Spectral Devices

  8. Overview of Electronics and Data Handling with Spectral Sensors mP-1 – Example… a PIC (Micro-Chips) for acquisition and data formatting Display (Portable) Serial (485), Wireless CAN-BUS + Link to Predictive-Adaptive Controller mP-1 mP-2 mP-2 – PIC or DSP for data extraction, numerical computation Continuously Variable Spectral Sensor Array Mosaic Sensor Array Example electronics …Automotive Rated Specifications

  9. NIR System: Application to Chemicals

  10. Monitoring Blending and Distillation Processes: Deviations and Composition

  11. Applications: Refinery, Plant and Beyond… • Conversions, distillations, blending…and more • Fuel distribution – pipelines, distribution centers, etc. • Smart burners…evaluation of fuel efficiency for boilers with feedback • Regulatory applications…validation of fuels at the pump…state inspectors • Solvent characterization • Solvent recovery systems…including solvent recovery boilers • Multiple point monitoring…cost effective

  12. Spectral Sensor: Application to Beverages

  13. Monitoring Fermentations and Distillations

  14. Implementation of an On-Line Reagent Integration System

  15. On-Line Implementation of Micro-Spectral Sensing Systemwith Reagent Chemistries On-Line Calibration & Validation Spectral Sensor Reagents Micro-Dispensing

  16. Example Spectral Analysis with Reagents: Free Chlorine Content in Drinking Water

  17. Applications: Water Distribution, Processing and Waste Management, Etc… • Water purification and distribution • On-site testing at public buildings…including schools and hospitals • Monitoring for chlorine and other standard parameters, heavy metals, specific toxins, etc. • Water waste management…testing for known materials…heavy metals, etc. • Metal working facilities • Electroplating…heavy metals • Run-off from plants • Cooling towers…water conditioning • Monitoring inhibitors • Environmental Monitoring • Lakes, rivers, streams…watersheds, etc.

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