FR1021565A - Appareil pour la mesure de faibles épaisseurs - Google Patents

Appareil pour la mesure de faibles épaisseurs

Info

Publication number
FR1021565A
FR1021565A FR1021565DA FR1021565A FR 1021565 A FR1021565 A FR 1021565A FR 1021565D A FR1021565D A FR 1021565DA FR 1021565 A FR1021565 A FR 1021565A
Authority
FR
France
Prior art keywords
measuring small
small thicknesses
thicknesses
measuring
small
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
Other languages
English (en)
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.)
ISOTOPE DEVELOPMENTS Ltd
Original Assignee
ISOTOPE DEVELOPMENTS Ltd
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 ISOTOPE DEVELOPMENTS Ltd filed Critical ISOTOPE DEVELOPMENTS Ltd
Application granted granted Critical
Publication of FR1021565A publication Critical patent/FR1021565A/fr
Expired legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N23/00—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00
    • G01N23/02—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material
    • G01N23/06—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption
    • G01N23/16—Investigating or analysing materials by the use of wave or particle radiation, e.g. X-rays or neutrons, not covered by groups G01N3/00 – G01N17/00, G01N21/00 or G01N22/00 by transmitting the radiation through the material and measuring the absorption the material being a moving sheet or film

Landscapes

  • Physics & Mathematics (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)
  • Length-Measuring Devices Using Wave Or Particle Radiation (AREA)
  • Measurement Of Radiation (AREA)
FR1021565D 1949-11-03 1950-07-06 Appareil pour la mesure de faibles épaisseurs Expired FR1021565A (fr)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB28231/49A GB677451A (en) 1949-11-03 1949-11-03 Apparatus for measuring the thickness of sheet material

Publications (1)

Publication Number Publication Date
FR1021565A true FR1021565A (fr) 1953-02-20

Family

ID=10272393

Family Applications (1)

Application Number Title Priority Date Filing Date
FR1021565D Expired FR1021565A (fr) 1949-11-03 1950-07-06 Appareil pour la mesure de faibles épaisseurs

Country Status (5)

Country Link
US (1) US2618751A (fr)
BE (1) BE499971A (fr)
CH (1) CH288770A (fr)
FR (1) FR1021565A (fr)
GB (1) GB677451A (fr)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2819408A (en) * 1952-12-04 1958-01-07 Well Surveys Inc Instrument zeroing for radioactivity well logging
US2951159A (en) * 1953-05-04 1960-08-30 Armstrong Cork Co Method and apparatus for making repetitive measurements
US2877308A (en) * 1953-09-03 1959-03-10 Reiner Stewart Drift cancellation device for direct current integrators
US3010020A (en) * 1955-05-17 1961-11-21 Curtiss Wright Corp Apparatus for continuously measuring the mass per unit area of a coating
US2965050A (en) * 1957-02-20 1960-12-20 Industrial Nucleonics Corp Measurement and controlling system for a dough machine
US2951161A (en) * 1957-05-31 1960-08-30 Industrial Nucleonics Corp Cascade standardization
US2988699A (en) * 1958-04-09 1961-06-13 Gen Dynamics Corp Linear d. c. micromicroammeter
US3016460A (en) * 1958-04-14 1962-01-09 Goodyear Tire & Rubber Method and apparatus for web thickness control

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2264725A (en) * 1940-08-02 1941-12-02 Westinghouse Electric & Mfg Co Thickness gauge for rolling mills
US2405572A (en) * 1943-08-03 1946-08-13 Friedman Herbert Radiographic exposure meter
US2503075A (en) * 1947-02-15 1950-04-04 Gen Electric X-ray tube energizing circuit

Also Published As

Publication number Publication date
GB677451A (en) 1952-08-13
US2618751A (en) 1952-11-18
CH288770A (fr) 1953-06-01
BE499971A (fr) 1951-03-31

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