US5035505A
Expired / Lapsed
US
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Atomic absorption spectroscopy photometer
Assignee: Hitachi Ltd
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Filing: 1990-07-25
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Granted: 1991-07-30
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Expires: 2010-07-25
Abstract
Abstract An atomic absorption spectroscopy photometer comprising: sample atomizing means for heating to atomize a sample; a plurality of light sources disposed at a like number of light flux incidence positions for causing light having required wavelengths to enter the atomized sample; means for measuring the degrees of light absorption of a plurality of elements contained in the sample by detecting the fluxes of light which have passed through the atomized sample; a plurality of holder means for holding the plurality of light sources, the plurality of light sources being larger in number than the plurality of the light flux incidence positions; and means for setting required ones of the light sources of the plurality at the corresponding light flux incidence positions by moving the holder means.
Inventors
- 👤 Masamichi Tsukada
- 👤 Hayato Tobe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 16:47
CPC Classifications
G; G01; G01N; G01N21/00; G01N21/62; G01N21/71; G01N21/74; G01N21/17; G01N21/25; G01N21/31; G01N21/3103; G01N2021/3111; G01N2021/3114; G01N2021/3129; G01N2201/00; G01N2201/06; G01N2201/066; G01N2201/0666
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
126 words
An atomic absorption spectroscopy photometer comprising: sample atomizing means for heating to atomize a sample; a plurality of light sources disposed at a like number of light flux incidence positions for causing light having required wavelengths to enter the atomized sample; means for measuring the degrees of light absorption of a plurality of elements contained in the sample by detecting the fluxes of light which has passed through the atomized sample; a plurality of holder means for holding the plurality of light sources, the plurality of light sources being larger in number than the plurality of the light flux incidence positions; and means for setting required ones of the light sources of the plurality at the corresponding light flux incidence positions by moving the holder means.
Claim 2
Dependent Claim
126 words
An atomic absorption spectroscopy photometer comprising: sample atomizing means for heating to atomize a sample; a plurality of light sources disposed at a like number of light flux incidence positions for causing light having required wavelengths to enter the atomized sample; means for measuring the degrees of light absorption of a plurality of elements contained in the sample by detecting the fluxes of light which has passed through the atomized sample; a plurality of holder means for holding the plurality of light sources, the plurality of light sources being larger in number than the plurality of the light flux incidence positions; and means for setting required ones of the light sources of the plurality at the corresponding light flux incidence positions by moving the holder means.
Claim 3
Dependent Claim
56 words
An atomic absorption spectroscopy photometer according to claim 1, further including: means for selecting a plurality of light sources corresponding to the plurality of elements in the sample to be measured; and wherein said setting means includes means for setting at the light flux incidence positions said plurality of light sources selected by said selecting means.
Claim 4
Dependent Claim
43 words
An atomic absorption spectroscopy photometer according to claim 2, wherein said selecting means includes: means for therein recording beforehand a plurality of predetermined groups of combined light sources; and means for selecting one of the plurality of groups recorded by said recording means.
Claim 5
Dependent Claim
46 words
An atomic absorption spectroscopy photometer according to claim 2, wherein said selecting means includes: means for inputting the names of elements to be measured simultaneously; and means for determining whether the combination of elements the names of which are input by said inputting means is measurable.
Claim 6
Dependent Claim
77 words
An atomic absorption spectroscopy photometer according to claim 4, wherein said selecting means further includes: means for determining whether the elements the names of which are input by said inputting means is larger in number than the light flux incidence positions; and means for preparing a plurality of groups of combined elements when said last-mentioned determining means determines that the elements the names of which are input are larger in number than the light flux incidence positions.
Claim 7
Dependent Claim
43 words
An atomic absorption spectroscopy photometer according to claim 2, wherein said selecting means includes: means for designating elements to be measured; and means for determining whether light sources corresponding to the elements designated by said designating means are held by said holder means.
Claim 8
Dependent Claim
45 words
An atomic absorption spectroscopy photometer according to claim 1, further including: means for setting a plurality of groups of combined light sources used for simultaneous measurement; and means for sequentially designating the measurements of the groups until the measurement of all the groups is completed.
Claim 9
Dependent Claim
94 words
An atomic absorption spectroscopy photometer according to claim 1, further including: means for designating the names of a plurality of elements to be measured; means for beforehand storing as a table a multiplicity of the names of elements and measuring conditions of the respective elements; means for reading from the table the measuring conditions of the plurality elements the names of which are designated by said designating means and determining whether simultaneous measurement is possible; and means for driving said light source setting means when said determining means determines that simultaneous measurement is possible.
Claim 10
Dependent Claim
35 words
An atomic absorption spectroscopy photometer according to claim 8, further including: means for setting the elements designated by said designating means and not recorded on said table, and the measuring conditions of those designated elements.
Claim 11
Dependent Claim
70 words
An atomic absorption spectroscopy photometer according to claim 1, further including: means for designating elements to be measured; means for determining whether light sources corresponding to the elements designated by said designating means are held by said holder means; and means for driving said setting means when said determining means determines that the light sources corresponding to the elements designated by said designating means are held by said holder means.
Claim 12
Dependent Claim
42 words
An atomic absorption spectroscopy photometer according to claim 10, further including: means for displaying the fact that the light sources corresponding to the elements designated by said designating means are not held by said holder means when said determining means determines so.
Claim 13
Dependent Claim
32 words
An atomic absorption spectroscopy photometer according to claim 11, wherein said displaying means includes: means for displaying kinds of light sources to be held and places where the light sources are held.
Claim 14
Dependent Claim
38 words
An atomic absorption spectroscopy photometer according to claim 1, wherein said holder means includes means held rotatably around an axis for disposing said light sources along the circumference of a circle having its center coincident with the axis.
Claim 15
Dependent Claim
47 words
An atomic absorption spectroscopy photometer according to claim 1, wherein said holder means includes a plurality of components each rotatable around an axis, each component holding a plurality of light sources along the circumference of a circle having its center coincident with the axis of that component.
Claim 16
Dependent Claim
19 words
An atomic absorption spectroscopy photometer according to claim 1, wherein said holder means includes a component supported slidable linearly.
Claim 17
Dependent Claim
34 words
An atomic absorption spectroscopy photometer according to claim 1, wherein said holder means includes a component supported slidable linearly and a plurality of components held on said slidable component and rotatable around an axis.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-07-29 | 1995-01-28 | 1995-07-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-07-29 | 1999-01-28 | 1999-07-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-07-29 | 2003-01-28 | 2003-07-30 | $7700.00 | Window Closed / Lapsed |