Skip to Main Content U.S. Department of Energy
Sensors & Electronics

Sensors & Electronics

Chemical Sensors

Fiber Optic Chemical Vapor Sensors (147)

Handheld instrument with sensor module graphic Handheld instrument with sensor module. (Cover open to expose fiber optic probe - quarter shown for size reference.)

Problem: Handheld, low cost instrument required for on-site measurement of iodine vapor at low concentrations (~5 ppm)

Project Activity Scope (from Technical Overview Chart): Mechanisms through Instruments

PNNL Solution:

  • Developed selective coating for iodine vapor detection using optical absorption
  • Demonstrated 2-wavelength fiber optic probe to provide robust measurement
  • Developed battery powered, handheld programmable instrument
  • Instrument capable of detecting other vapors using other selective coatings

Capabilities Employed to Meet Client Needs: Optical spectroscopy for chemical analysis; chemically selective coating development; coating application to optical fibers; fiber optic probe design; dual channel light emitting diode optical source design; compact optical system design; electronic circuit design; ruggedized packaging design; microprocessor instrument control and data acquisition system; embedded software development; engineering design documentation; lab testing to establish performance & calibration method.

Selected Links to Related Information:

Contact: Mary Bliss

Sensors & Electronics

Related Information

Search S&E

Chemical Sensors

Chemical Sensors

S&E Website Contacts