Infrared trace element detection system
- Concord, MA
- Bedford, MA
- Burlington, MA
An infrared trace element detection system including an optical cell into which the sample fluid to be examined is introduced and removed. Also introduced into the optical cell is a sample beam of infrared radiation in a first wavelength band which is significantly absorbed by the trace element and a second wavelength band which is not significantly absorbed by the trace element for passage through the optical cell through the sample fluid. The output intensities of the sample beam of radiation are selectively detected in the first and second wavelength bands. The intensities of a reference beam of the radiation are similarly detected in the first and second wavelength bands. The sensed output intensity of the sample beam in one of the first and second wavelength bands is normalized with respect to the other and similarly, the intensity of the reference beam of radiation in one of the first and second wavelength bands is normalized with respect to the other. The normalized sample beam intensity and normalized reference beam intensity are then compared to provide a signal from which the amount of trace element in the sample fluid can be determined.
- Research Organization:
- Spectral Sciences Inc
- DOE Contract Number:
- AC02-83ER80085
- Assignee:
- Spectral Sciences, Inc. (Burlington, MA)
- Patent Number(s):
- US 4785184
- OSTI ID:
- 866777
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
trace
element
detection
including
optical
cell
sample
fluid
examined
introduced
removed
beam
radiation
wavelength
band
significantly
absorbed
passage
output
intensities
selectively
detected
bands
reference
similarly
sensed
intensity
normalized
respect
compared
provide
signal
amount
determined
optical cell
wavelength bands
beam intensity
trace element
reference beam
infrared radiation
sample fluid
wavelength band
sample beam
output intensity
element detection
infrared trace
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