Glass manufacturing – Processes – Forming product or preform from molten glass
Patent
1988-08-16
1993-10-05
Lindsay, Robert L.
Glass manufacturing
Processes
Forming product or preform from molten glass
65 315, 65 31, 385 12, C03C 1500
Patent
active
052500950
ABSTRACT:
A porous glass optical fiber sensor, a method for its use, and a method for its manufacture. The sensor includes a glass optical fiber for conveying light, the fiber having a surface of interconnected and permeable chambers within the fiber, for optically sensing within the chambers. An indicator can be applied to the surface for sensing. The sensor is made by: first, drawing the fiber; second, heat treating the fiber to induce phase separation; and third, leaching a phase from the fiber. Thereafter, an indicator, such as a pH or moisture indicator, can be applied to the fiber for sensing. The sensor is used in conjunction with a light source, a light detector, and means for measuring change in the light caused by an agent within the porosity of the sensor.
REFERENCES:
patent: 2106744 (1938-02-01), Hood
patent: 2215039 (1940-09-01), Hood
patent: 2286275 (1942-06-01), Hood
patent: 2315328 (1943-03-01), Hood
patent: 2480672 (1949-09-01), Plank
patent: 2505001 (1950-04-01), Nordberg
patent: 2843461 (1958-07-01), Labino
patent: 3192026 (1965-06-01), Nordberg et al.
patent: 3272646 (1966-09-01), Chopoorian
patent: 3352654 (1967-11-01), Nordberg et al.
patent: 3356563 (1967-12-01), Marzocchi
patent: 3650721 (1972-03-01), Hammel et al.
patent: 3711262 (1973-01-01), Keck
patent: 3904422 (1975-09-01), Eaton
patent: 3938974 (1976-02-01), Macedo
patent: 3981706 (1976-09-01), Strack
patent: 4097258 (1978-06-01), Horikawa
patent: 4220461 (1980-09-01), Samamta
patent: 4236930 (1980-12-01), Macedo
patent: 4560248 (1985-12-01), Cramp et al.
patent: 4657875 (1987-04-01), Nakashima
patent: 4665039 (1987-05-01), Kokubu
patent: 4842783 (1989-06-01), Blaylock
Tomozawa et al. Treatise on Materials Science and Technology, vol. 17 (Academic Press 1979).
Ding et al, Fiber Optic Moisture Sensors for High Temperatures, ACS Bulletin, Sep. 1991.
A. P. Russell and K. S. Fletcher in Anal. Chim., Acata 170, 209 (1985).
David S. Ballantine and Hank Wohltjen in Anal. Chem. 58, 2883 (1986).
Chu Zhu and Gary M. Hieftje, Abstract 606, paper presented at the Pittsburgh Conference and Exposition on Analytical Chemistry and Applied Spectroscopy, Atlantic City, N.J., 1987.
D. J. David, M. C. Wilson and D. S. Ruffin, "Direct Measurement of Ammonia in Ambient Air", Anal. Lett. 9, 38 (1976).
T. A. Orofino, D. J. Dand and E. E. Hardy, "A Technique for Work-Station Monitoring Utilizing Optical Waveguide".
J. F. Giuliana, H. Wohltjen and N. L. Jarvis, "Reversible Optical Waveguide Sensor for Ammonia Vapors", Optic's Letters, vol. 8, No. 1, Jan. 1983.
Shahriari Mahmoud
Sigel, Jr. George
Zhou Quan
Lindsay Robert L.
Rutgers University
Speer Richard A.
Trzyna Peter K.
LandOfFree
Method for making porous glass optical fiber sensor does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Method for making porous glass optical fiber sensor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method for making porous glass optical fiber sensor will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1000547