FR1447556A - Densitometer - Google Patents

Densitometer

Info

Publication number
FR1447556A
FR1447556A FR30053A FR30053A FR1447556A FR 1447556 A FR1447556 A FR 1447556A FR 30053 A FR30053 A FR 30053A FR 30053 A FR30053 A FR 30053A FR 1447556 A FR1447556 A FR 1447556A
Authority
FR
France
Prior art keywords
densitometer
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
FR30053A
Other languages
French (fr)
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.)
International Business Machines Corp
Original Assignee
International Business Machines Corp
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 International Business Machines Corp filed Critical International Business Machines Corp
Priority to FR30053A priority Critical patent/FR1447556A/en
Application granted granted Critical
Publication of FR1447556A publication Critical patent/FR1447556A/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
    • G01N21/27—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands using photo-electric detection ; circuits for computing concentration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01J—MEASUREMENT OF INTENSITY, VELOCITY, SPECTRAL CONTENT, POLARISATION, PHASE OR PULSE CHARACTERISTICS OF INFRARED, VISIBLE OR ULTRAVIOLET LIGHT; COLORIMETRY; RADIATION PYROMETRY
    • G01J1/00—Photometry, e.g. photographic exposure meter
    • G01J1/10—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void
    • G01J1/20—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle
    • G01J1/22—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means
    • G01J1/24—Photometry, e.g. photographic exposure meter by comparison with reference light or electric value provisionally void intensity of the measured or reference value being varied to equalise their effects at the detectors, e.g. by varying incidence angle using a variable element in the light-path, e.g. filter, polarising means using electric radiation detectors

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Spectroscopy & Molecular Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Theoretical Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
FR30053A 1965-09-01 1965-09-01 Densitometer Expired FR1447556A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
FR30053A FR1447556A (en) 1965-09-01 1965-09-01 Densitometer

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR30053A FR1447556A (en) 1965-09-01 1965-09-01 Densitometer

Publications (1)

Publication Number Publication Date
FR1447556A true FR1447556A (en) 1966-07-29

Family

ID=8587568

Family Applications (1)

Application Number Title Priority Date Filing Date
FR30053A Expired FR1447556A (en) 1965-09-01 1965-09-01 Densitometer

Country Status (1)

Country Link
FR (1) FR1447556A (en)

Similar Documents

Publication Publication Date Title
FR1465560A (en) Can
FR1490409A (en) Pseudo-interlocking
CH463139A (en) Photocolorimeter
AT275934B (en) Rauchspitz
CH464545A (en) Coordinatograph
AT282421B (en) RINGLAEUFER
DK131816C (en) STANNOSALTPREPARAT
FR1420158A (en) Mailify
CH453401A (en) Calorifier
FI37327A (en) Fyllpensel
FI46514B (en) FROSTSKYDDSMEDEL
CH472298A (en) Stylograph
FR1447556A (en) Densitometer
FR1490661A (en) Densitometer
DD50687A1 (en) Hochspannungsprüfeinrichtung
FR1450806A (en) Stoup
FI43112C (en) Sågkedja
FR1467974A (en) Carrier-dispatcher
AT276101B (en) Skibob
FR1460858A (en) Bodice-petticoat
FI41705C (en) Käftkross
FI41703C (en) Rörkoppling
FI41499C (en) Vipport
FI44461C (en) Lyftklo
FR87246E (en) Ophthalmometer