JPS557178B2 - - Google Patents
Info
- Publication number
- JPS557178B2 JPS557178B2 JP6713175A JP6713175A JPS557178B2 JP S557178 B2 JPS557178 B2 JP S557178B2 JP 6713175 A JP6713175 A JP 6713175A JP 6713175 A JP6713175 A JP 6713175A JP S557178 B2 JPS557178 B2 JP S557178B2
- Authority
- JP
- Japan
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
- G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
- G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
- G01N21/31—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
- G01N21/35—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light
- G01N21/3504—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry using infrared light for analysing gases, e.g. multi-gas analysis
- G01N21/3518—Devices using gas filter correlation techniques; Devices using gas pressure modulation techniques
Landscapes
- Physics & Mathematics (AREA)
- Spectroscopy & Molecular Physics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Investigating Or Analysing Materials By Optical Means (AREA)
- Optical Measuring Cells (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US476373A US3926527A (en) | 1974-06-05 | 1974-06-05 | Rotating gas correlation cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS516586A JPS516586A (enExample) | 1976-01-20 |
| JPS557178B2 true JPS557178B2 (enExample) | 1980-02-22 |
Family
ID=23891578
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP6713175A Expired JPS557178B2 (enExample) | 1974-06-05 | 1975-06-05 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US3926527A (enExample) |
| JP (1) | JPS557178B2 (enExample) |
| CA (1) | CA1035166A (enExample) |
| DE (1) | DE2524614A1 (enExample) |
| GB (1) | GB1506294A (enExample) |
| IT (1) | IT1047752B (enExample) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5456882A (en) * | 1977-10-15 | 1979-05-08 | Horiba Ltd | Optical modulation motor |
| NL94317C (enExample) * | 1978-11-29 | |||
| US4234857A (en) * | 1979-04-13 | 1980-11-18 | Calspan Corporation | Centrifugal gasdynamic window |
| JPS6041850U (ja) * | 1983-08-30 | 1985-03-25 | 株式会社 堀場製作所 | ガス分析計 |
| US4817013A (en) * | 1986-10-17 | 1989-03-28 | Nellcor, Inc. | Multichannel gas analyzer and method of use |
| US4882492A (en) * | 1988-01-19 | 1989-11-21 | Biotronics Associates, Inc. | Non-invasive near infrared measurement of blood analyte concentrations |
| US5178142A (en) * | 1989-05-23 | 1993-01-12 | Vivascan Corporation | Electromagnetic method and apparatus to measure constituents of human or animal tissue |
| EP0401453B1 (en) * | 1989-05-23 | 1992-09-02 | Biosensors Technology, Inc. | Method for determining by absorption of radiations the concentration of substances in absorbing and turbid matrices |
| US5112124A (en) * | 1990-04-19 | 1992-05-12 | Worcester Polytechnic Institute | Method and apparatus for measuring the concentration of absorbing substances |
| US5137023A (en) * | 1990-04-19 | 1992-08-11 | Worcester Polytechnic Institute | Method and apparatus for monitoring blood analytes noninvasively by pulsatile photoplethysmography |
| US5183042A (en) * | 1989-05-23 | 1993-02-02 | Vivascan Corporation | Electromagnetic method and apparatus to measure constituents of human or animal tissue |
| US5277181A (en) * | 1991-12-12 | 1994-01-11 | Vivascan Corporation | Noninvasive measurement of hematocrit and hemoglobin content by differential optical analysis |
| WO1993012712A1 (en) * | 1991-12-31 | 1993-07-08 | Vivascan Corporation | Blood constituent determination based on differential spectral analysis |
| DE69625871T2 (de) * | 1995-05-08 | 2003-11-13 | Japan Energy Corp., Tokio/Tokyo | Vorrichtung zur umgebungsüberwachung |
| US5777775A (en) * | 1996-10-18 | 1998-07-07 | The Regents Of The University Of California | Mechanical beam isolator for high-power laser systems |
| CA2306290A1 (en) * | 2000-04-20 | 2001-10-20 | Applied Physics Specialties Limited | Variable optical filter |
| US8175666B2 (en) * | 2002-04-26 | 2012-05-08 | Grove Instruments, Inc. | Three diode optical bridge system |
| US7003337B2 (en) * | 2002-04-26 | 2006-02-21 | Vivascan Corporation | Non-invasive substance concentration measurement using and optical bridge |
| CN104237126B (zh) * | 2014-09-09 | 2017-03-01 | 中国科学院电工研究所 | 一种采用轴向多层滤光片盘结构的光声光谱检测装置 |
| JP6838487B2 (ja) * | 2017-05-10 | 2021-03-03 | 株式会社豊田中央研究所 | 濃度測定装置及び濃度測定方法 |
| US10760972B1 (en) | 2017-12-07 | 2020-09-01 | National Technology & Engineering Solutions Of Sandia, Llc | Modular low cost trackerless spectral sensor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3090861A (en) * | 1960-01-28 | 1963-05-21 | Edward O Haenni | Cell for use in radiation absorption analysis |
| US3552865A (en) * | 1968-04-01 | 1971-01-05 | Beckman Instruments Inc | High pressure flow-through cuvette |
| US3588496A (en) * | 1968-12-26 | 1971-06-28 | Gen Electric | Radiation analysis apparatus having an absorption chamber with partially reflective mirror surfaces |
| US3723731A (en) * | 1971-03-18 | 1973-03-27 | Environmental Res & Tech | Absorption spectroscopy |
| US3729264A (en) * | 1971-08-09 | 1973-04-24 | Horiba Ltd | Analyzer using the rotor of a motor as a light chopper |
| US3793525A (en) * | 1973-01-02 | 1974-02-19 | Philco Ford Corp | Dual cell non-dispersive gas analyzer |
-
1974
- 1974-06-05 US US476373A patent/US3926527A/en not_active Expired - Lifetime
-
1975
- 1975-06-03 CA CA228,284A patent/CA1035166A/en not_active Expired
- 1975-06-03 DE DE19752524614 patent/DE2524614A1/de active Pending
- 1975-06-04 IT IT49920/75A patent/IT1047752B/it active
- 1975-06-04 GB GB24174/75A patent/GB1506294A/en not_active Expired
- 1975-06-05 JP JP6713175A patent/JPS557178B2/ja not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| CA1035166A (en) | 1978-07-25 |
| IT1047752B (it) | 1980-10-20 |
| US3926527A (en) | 1975-12-16 |
| JPS516586A (enExample) | 1976-01-20 |
| GB1506294A (en) | 1978-04-05 |
| DE2524614A1 (de) | 1975-12-18 |