US5070243A
Expired / Lapsed
US
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Attenuated total reflection spectroscopy
Assignee: STATE OF ISRAEL ATOMIC ENERGY COMMISSION SOREQ NUCLEAR Research CENTER NAHAL SOREQ YAVNE 70600 ISRAEL
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Filing: 1991-02-12
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Granted: 1991-12-03
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Expires: 2011-02-12
Abstract
Abstract Method of ATR spectroscopy and substrate probe for use therein. The probe mprises a single optical fiber sensor, or a bundle of such sensors, with the sensing zone of each sensor comprising two unclad frustoconical portions merging at their frustrums.
Inventors
- 👤 Aharon Bornstein
- 👤 Dan Wolfman
- 👤 Mordechai Katz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:33
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/17; G01N21/55; G01N21/552; G01N21/41; G01N21/43; G01N21/431; G01N2021/432; G01N21/84; G01N21/85; G01N21/8507
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
64 words
In a method of performing a spectroscopic measurement by the Attenuated Total Reflection technique, comprising providing a tubular probe for holding a substrate medium, and fitting within said probe at least one optical fiber sensor having an unclad sensing zone and light intake and emitting ends, the improvement comprising said unclad sensing zone of each sensor including two frustoconical portions merging at their frustrums.
Claim 2
Dependent Claim
64 words
In a method of performing a spectroscopic measurement by the Attenuated Total Reflection technique, comprising providing a tubular probe for holding a substrate medium, and fitting within said probe at least one optical fiber sensor having an unclad sensing zone and light intake and emitting ends, the improvement comprising said unclad sensing zone of each sensor including two frustoconical portions merging at their frustrums.
Claim 3
Dependent Claim
33 words
The method of claim 1, comprising using a probe in which the base of each frustoconical portion of each sensor merges into an outer cylindrical portion having the same diameter as the base.
Claim 4
Dependent Claim
16 words
The method of claim 2, comprising the step of using a probe having a single sensor.
Claim 5
Dependent Claim
18 words
The method of claim 2, comprising the step of using a probe with a bundle of discrete sensors.
Claim 6
Dependent Claim
13 words
The method of claim 1, comprising using a probe having a single sensor.
Claim 7
Dependent Claim
15 words
The method of claim 1, comprising using a probe with a bundle of discrete sensors.
Claim 8
Dependent Claim
41 words
The method claim 1 for the performance of spectroscopic measurements with light in any one of the ultraviolet, visible and near-infrared light regions, wherein a probe is used in which each sensor is made of silica or fluoride based glass fiber.
Claim 9
Dependent Claim
38 words
The method according to claim 1 for the performance of spectroscopic measurements with light in the far infrared light region, wherein a probe is used in which each sensor is made of a chalcogenic compound based glass fiber.
Claim 10
Dependent Claim
72 words
A probe for sensing the performance of a spectroscopic measurement by the Attenuated Total Reflection technique, the probe comprising a tubular casing including means for holding a substrate medium and being fitted with at least one optical fiber sensor inserted therein and having an unclad sensing zone, a light intake end and a light emitting end, said unclad sensing zone of each sensor comprising two identical frustoconical portions merging at their frustrums.
Claim 11
Dependent Claim
72 words
A probe for sensing the performance of a spectroscopic measurement by the Attenuated Total Reflection technique, the probe comprising a tubular casing including means for holding a substrate medium and being fitted with at least one optical fiber sensor inserted therein and having an unclad sensing zone, a light intake end and a light emitting end, said unclad sensing zone of each sensor comprising two identical frustoconical portions merging at their frustrums.
Claim 12
Dependent Claim
28 words
The probe of claim 9, wherein the bases of the frustoconical portions of the sensor merge into an outer cylindrical portions having the same diameter as the bases.
Claim 13
Dependent Claim
14 words
The probe of claim 10, wherein the cylindrical casing has a circular cross-sectional shape.
Claim 14
Dependent Claim
14 words
The probe of claim 10, wherein the cylindrical casing has a polygonal cross-sectional shape.
Claim 15
Dependent Claim
9 words
The probe of claim 10, comprising a single sensor.
Claim 16
Dependent Claim
11 words
The probe of claim 10, comprising a bundle of discrete sensors.
Claim 17
Dependent Claim
14 words
The probe of claim 9, wherein the cylindrical casing has a circular cross-sectional shape.
Claim 18
Dependent Claim
9 words
The probe of claim 15, comprising a single sensor.
Claim 19
Dependent Claim
11 words
The probe of claim 15, comprising a bundle of discrete sensors.
Claim 20
Dependent Claim
14 words
The probe of claim 9, wherein the cylindrical casing has a polygonal cross-sectional shape.
Claim 21
Dependent Claim
9 words
The probe of claim 9, comprising a single sensor.
Claim 22
Dependent Claim
11 words
The probe of claim 9, comprising a bundle of discrete sensors.
Claim 23
Dependent Claim
25 words
The probe of claim 9, wherein each sensor is made of the material selected from the group consisting of silica and fluoride based glass fiber.
Claim 24
Dependent Claim
17 words
A probe according to claim 9, wherein each sensor is made of chalcogenic compound based glass fiber.
Claim 25
Dependent Claim
30 words
A sensor for use in spectroscopic measurement by the attenuated total reflection technique, being an optical fiber comprising an unclad sensing zone having two frustoconical portions merging at their frustrums.
Claim 26
Dependent Claim
30 words
A sensor for use in spectroscopic measurement by the attenuated total reflection technique, being an optical fiber comprising an unclad sensing zone having two frustoconical portions merging at their frustrums.
Claim 27
Dependent Claim
12 words
The sensor of claim 23 made of silica or fluoride based glass.
Claim 28
Dependent Claim
11 words
The sensor of claim 23 made of chalcogenic compound based glass.
References Cited (Backward Citations)
US4728170A
Cited
US4654532A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-12-02 | 1995-06-03 | 1995-12-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-12-02 | 1999-06-03 | 1999-12-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-12-02 | 2003-06-03 | 2003-12-03 | $7700.00 | Window Closed / Lapsed |