Instrumentation for remote sensing over fiber optics
We have developed a way to extend the sensing and analytical abilities of the laser-fluorescence spectrometer beyond the physical confines of the laboratory by means of communications-grade optical fibers. These fiber probes are extremely rugged, compared with sensitive laboratory equipment, and also extremely inexpensive. They make it possible to perform sensitive chemical analyses in hostile environments without risking damage to the laser and the spectrometer. We have produced special-purpose optrodes that are sensitive to selected chemicals. With multiplexing, we can scan a number of fibers whose terminals are at widely scattered locations, gathering information in one central instrument without the expense and delay involved in manual sample-gathering. We have begun development of a remote analyzer for monitoring rare-earth-ion migration in a nuclear-waste repository, an environment too hostile for any previous remote sensing device. We are also developing optrodes sensitive to a wide variety of non-chemical stimuli.
- Research Organization:
- Lawrence Livermore National Lab., CA (USA)
- DOE Contract Number:
- W-7405-ENG-48
- OSTI ID:
- 5746376
- Report Number(s):
- UCRL-89593; CONF-831025-12; ON: DE84001788
- Resource Relation:
- Conference: 26. ORNL-DOE conference on analytical chemistry in energy technology, Knoxville, TN, USA, 11 Oct 1983
- Country of Publication:
- United States
- Language:
- English
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