Optics: measuring and testing – Range or remote distance finding – With photodetection
Patent
1975-10-03
1977-03-01
McGraw, Vincent P.
Optics: measuring and testing
Range or remote distance finding
With photodetection
250341, 356 51, 356 70, 356106S, G01J 336
Patent
active
040099628
ABSTRACT:
A spectroscopic system for measuring the discontinuous far infrared radiation emitted by a semi-transparent material, and including compensation for background, graybody, emitted radiation.
In a first embodiment, a system is disclosed for measuring the far infrared radiation emitted by a lubricant in contact with a steel ball under high pressure. The lubricant is coated on a small diamond disc mounted as a window in a steel plate. The steel ball is rotated over the window to form a sliding elastohydrodynamic (EHD) contact region with the lubricant. Some of the radiant energy generated in the contact region, both in the fluid and at its boundaries, passes through the window into an infrared interferometer, which generates an emission spectrum. The spectrum is separated, by a balancing technique utilizing a rotating chopper blade, into contributions from the fluid and contributions from the steel ball.
In a second embodiment, the emission spectrum of a geochemical fossil, such as kerogen, is measured by similar apparatus. The infrared radiation emitted from organic matter in the fossil is separated from graybody radiation emitted by other elements in the fossil by the same radiation balancing technique utilized in the first embodiment.
REFERENCES:
patent: 3753619 (1973-08-01), Thorpe et al.
Lauer James L.
Peterkin Melvin E.
Hess J. Edward
Johnson Donald R.
McGraw Vincent P.
Roch William C.
Sun Oil Company of Pennsylvania
LandOfFree
Emission spectroscopic system having compensation for background does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Emission spectroscopic system having compensation for background, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Emission spectroscopic system having compensation for background will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1350106