Method and device for contactless temperature monitoring and temperature adjustment
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Abstract
A method and device for determining the temperature of a sample, wherein a probing light beam is directed onto the sample whereby at least two partial beams of the probing light pass through paths of different lengths inside the sample by backscattering or reflecting the beams from at least two different depths in the sample, returning the partial beams to an analysis unit, and producing an interference pattern in the analysis unit by means of an interferometric device which uses one light beam as a reference for evaluating the interference pattern in an evaluating unit, wherein the signal intensity of the partial beam is determined counter to the optical path and the temperature displacement and temperature of the sample are determined by the temperature adjustment of the signal intensity.
35 Citations
31 Claims
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1-8. -8. (canceled)
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9. A method for contactless temperature monitoring and adjustment, the method comprising:
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(a) directing a probing light beam onto the sample where at least two partial beams of the probing light beam pass through different long path lengths in the sample, and are reflected or backscattered from at least two different depths in the sample;
(b) returning the reflected or backscattered partial beams into an analytical unit;
(c) producing an interference pattern in an analytical unit by means of an interferometric device which uses one beam as the reference light beam; and
(d) evaluating the interference pattern produced in an evaluating unit. - View Dependent Claims (10, 11, 12, 13, 14, 15, 16, 17)
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18. A device for contactless temperature monitoring and adjustment, the device comprising:
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(a) an analytical unit with a light source for the probing light;
(b) a detecting device for electronically detecting the interference pattern produced by the returned partial beams of the irradiated biological tissue; and
(c) an evaluating unit. - View Dependent Claims (19, 20, 21, 22, 23)
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24. Method for determining the temperature of a sample, the method comprising:
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directing a probing light beam onto the sample, where at least two partial beams of the probing light beam pass through different path lengths in the sample, wherein the partial beams are reflected or backscattered from at least two different depths in the sample;
returning the reflected or backscattered partial beams into an analytical unit;
producing an interference pattern in an analytical unit; and
evaluating the interference pattern produced in an evaluating unit, using short coherent light for detecting the backscattering strength and the temperature-indicative, optical path lengths via the refractive index, in which the signal intensity of the reflected or backscattered partial beams is determined against the optical path length and the temperature displacement and sample temperature are determined from the temperature displacement of the signal intensity. - View Dependent Claims (25, 26, 27, 28, 29, 30, 31)
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Specification