Luminescent sensor for an optical temperature-measuring device

Details Luminescent sensor for an optical temperature-measuring device Luminescent sensor for an optical temperature-measuring device

1984-04-10

1986-06-03

Yasich, Daniel M.

Thermal measuring and testing

Temperature measurement

In spaced noncontact relationship to specimen

250227, 2504581, 2523014H, G01J 510, G01K 102

Patent

active

045926646

ABSTRACT:
The temperature-measuring transducer of a temperature-measuring system that includes a device for emitting energizing radiation, a temperature-measuring transducer which, upon excitation by the energizing radiation, will emit luminescent light, a detector for detecting the luminescent light emitted by the temperature-measuring transducer, and at least one optical fiber interconnecting the various elements is made of a crystalline sensor material which contains luminescent ions, at least some of these luminescent ions being so located in the crystal lattice of the sensor material that for each of said at least some luminescent ions each immediately adjacent anion substantially shows inversion symmetry in relation to that luminescent ion.

REFERENCES:
patent: 3626758 (1971-12-01), Stewart et al.
patent: 3639765 (1972-02-01), Kleinerman
patent: 3996472 (1976-12-01), Rabatin
patent: 4061578 (1977-12-01), Kleinerman
patent: 4278349 (1981-07-01), Sander
patent: 4356448 (1982-10-01), Brogardh et al.
patent: 4437772 (1984-03-01), Samulski
patent: 4448547 (1984-05-01), Wickersheim
patent: 4468771 (1984-08-01), Zhukov et al.
patent: 4473747 (1984-09-01), Brogardh et al.
Van Nostrand, Reinhold Co. Ltd., New York, 1977, pp. 9, 12 (Glasser "Crystallography and its Applications".
Physical Review B, vol. 10, No. 11, pp. 4560-4567, Dec. 1, 1974 ("Efficient Phonon-Assisted Long-Lifetime Nd.sup.3+ Fluorescence in Cs.sub.2 NaNdCl.sub.6 ", B. C. Tofield et al.).

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