GB1439468A - Infra red measuring system for thin film materials - Google Patents

Infra red measuring system for thin film materials

Info

Publication number
GB1439468A
GB1439468A GB2750473A GB2750473A GB1439468A GB 1439468 A GB1439468 A GB 1439468A GB 2750473 A GB2750473 A GB 2750473A GB 2750473 A GB2750473 A GB 2750473A GB 1439468 A GB1439468 A GB 1439468A
Authority
GB
United Kingdom
Prior art keywords
june
web
infrared
spurious
thin film
Prior art date
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
Application number
GB2750473A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
INFRA SYSTEMS Inc
Original Assignee
INFRA SYSTEMS Inc
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by INFRA SYSTEMS Inc filed Critical INFRA SYSTEMS Inc
Publication of GB1439468A publication Critical patent/GB1439468A/en
Expired legal-status Critical Current

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
    • G01N21/314—Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry with comparison of measurements at specific and non-specific wavelengths

Landscapes

  • Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Spectrometry And Color Measurement (AREA)

Abstract

1439468 Infrared measuring systems INFRA SYSTEMS Inc 8 June 1973 [8 June 1972] 27504/73 Heading G1A The invention relates to a two channel infrared absorption analyzer for measuring a property such as thickness of a web of moving material such as a polycarbonate or polypropylene film (especially in the thickness range of À0002 to À001 inch. To overcome the effects of spurious ambient and reflection signals a reference beam is provided which responds to the spurious effects alone i.e. with the strong absorption line energy filtered out, and the sample web is irradiated alternately by the "broad band" and reference beams. As described the infrared source comprises a filament lamp energized from a stabilized power .supply. This is "chopped" by a disc having four holes alternately containing a neutral filter and an absorber of the same or similar material to the sample web, Fig. 5 (not shown). Alternatively a conventional mirror beam-splitter and chopper may be used, Fig. 1B (not shown). The detector is preferably a lead selenide photoconductor. Specification 1348978 is referred to.
GB2750473A 1972-06-08 1973-06-08 Infra red measuring system for thin film materials Expired GB1439468A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US26101472A 1972-06-08 1972-06-08

Publications (1)

Publication Number Publication Date
GB1439468A true GB1439468A (en) 1976-06-16

Family

ID=22991607

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2750473A Expired GB1439468A (en) 1972-06-08 1973-06-08 Infra red measuring system for thin film materials

Country Status (6)

Country Link
JP (1) JPS5638892B2 (en)
CA (1) CA982842A (en)
DE (1) DE2329470A1 (en)
FR (1) FR2188837A5 (en)
GB (1) GB1439468A (en)
IT (1) IT988912B (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110214267A (en) * 2016-11-18 2019-09-06 法国电力公司 For estimating the mancarried device and method of Polymer Parameters

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS575322A (en) * 1980-06-13 1982-01-12 Hachiro Ikegami Recovering and pretreating method for semiconductor
JPH06293582A (en) * 1992-05-14 1994-10-21 Anico Co Ltd Method of increasing surface frictional force of tile, etc. and composition of treating agent for said method

Family Cites Families (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2909924A (en) * 1954-12-15 1959-10-27 Du Pont Radiation temperature measurement
US3352156A (en) * 1965-02-12 1967-11-14 Barnes Eng Co Radiometer for measuringa temperature of semi-transparent material
US3405268A (en) * 1965-03-12 1968-10-08 Brun Sensor Systems Inc Radiant energy absorption gage for measuring the weight of a base material and the content of a material sorbed by the base material
US3631526A (en) * 1969-11-05 1971-12-28 Brun Sensor Systems Inc Apparatus and methods for eliminating interference effect errors in dual-beam infrared measurements

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110214267A (en) * 2016-11-18 2019-09-06 法国电力公司 For estimating the mancarried device and method of Polymer Parameters
CN110214267B (en) * 2016-11-18 2023-01-10 法国电力公司 Portable device and method for estimating polymer parameters

Also Published As

Publication number Publication date
FR2188837A5 (en) 1974-01-18
JPS5030578A (en) 1975-03-26
IT988912B (en) 1975-04-30
JPS5638892B2 (en) 1981-09-09
DE2329470A1 (en) 1974-01-03
CA982842A (en) 1976-02-03

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee