PT68717A - A method for separating and purification acrylic acid - Google Patents

A method for separating and purification acrylic acid

Info

Publication number
PT68717A
PT68717A PT68717A PT6871778A PT68717A PT 68717 A PT68717 A PT 68717A PT 68717 A PT68717 A PT 68717A PT 6871778 A PT6871778 A PT 6871778A PT 68717 A PT68717 A PT 68717A
Authority
PT
Portugal
Prior art keywords
separating
acrylic acid
purification
purification acrylic
acid
Prior art date
Application number
PT68717A
Other languages
English (en)
Inventor
David Rudolph Wagner
Original Assignee
Standard Oil Co Ohio
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 Standard Oil Co Ohio filed Critical Standard Oil Co Ohio
Publication of PT68717A publication Critical patent/PT68717A/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
    • G01S3/00—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received
    • G01S3/78—Direction-finders for determining the direction from which infrasonic, sonic, ultrasonic, or electromagnetic waves, or particle emission, not having a directional significance, are being received using electromagnetic waves other than radio waves
    • G01S3/7803—Means for monitoring or calibrating
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D18/00—Testing or calibrating apparatus or arrangements provided for in groups G01D1/00 - G01D15/00
    • G01D18/002—Automatic recalibration
    • G01D18/006—Intermittent recalibration
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
    • G01D5/00—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable
    • G01D5/26—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light
    • G01D5/28—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication
    • G01D5/30—Mechanical means for transferring the output of a sensing member; Means for converting the output of a sensing member to another variable where the form or nature of the sensing member does not constrain the means for converting; Transducers not specially adapted for a specific variable characterised by optical transfer means, i.e. using infrared, visible, or ultraviolet light with deflection of beams of light, e.g. for direct optical indication the beams of light being detected by photocells

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Radar, Positioning & Navigation (AREA)
  • Remote Sensing (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Length Measuring Devices By Optical Means (AREA)
PT68717A 1977-12-05 1978-10-30 A method for separating and purification acrylic acid PT68717A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US05/857,157 US4187422A (en) 1977-12-05 1977-12-05 Internal reference for stellar tracker

Publications (1)

Publication Number Publication Date
PT68717A true PT68717A (en) 1978-11-01

Family

ID=25325325

Family Applications (1)

Application Number Title Priority Date Filing Date
PT68717A PT68717A (en) 1977-12-05 1978-10-30 A method for separating and purification acrylic acid

Country Status (6)

Country Link
US (1) US4187422A (pt)
AT (1) AT367388B (pt)
IN (1) IN148435B (pt)
NO (1) NO784054L (pt)
PT (1) PT68717A (pt)
YU (1) YU273878A (pt)

Families Citing this family (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3120344C2 (de) * 1980-06-28 1982-12-30 Eltro GmbH, Gesellschaft für Strahlungstechnik, 6900 Heidelberg Verfahren und Vorrichtung zur Funktionsprüfung von Ortungsanlagen
CA2001070A1 (en) * 1988-10-24 1990-04-24 Douglas B. George Telescope operating system
FR2713785B1 (fr) * 1993-12-10 1996-03-01 Centre Nat Etd Spatiales Système de repérage d'orientation d'un instrument d'observation.
FR2724013B1 (fr) * 1994-08-29 1996-11-22 Centre Nat Etd Spatiales Systeme de reperage d'orientation d'un instrument d'observation.
EP1050762A1 (de) * 1999-05-05 2000-11-08 Contraves Space AG Verfahren und Vorrichtung zum Kalibrieren der Ab-Lage eines Empfangsstrahls in einem Terminal von seiner Soll-Lage sowie Verwendung der Vorrichtung
US20080174863A1 (en) * 2007-01-24 2008-07-24 Whorton Mark S Star Identification and Alignment System
US8169623B2 (en) * 2009-09-01 2012-05-01 Raytheon Company Optical apparatus and method for measuring the attitude of an object in outer space
WO2021087304A1 (en) * 2019-11-01 2021-05-06 Stryker Corporation Systems and methods for image reorientation for endoscopic imaging

Family Cites Families (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3349664A (en) * 1962-05-22 1967-10-31 North American Aviation Inc Optical collimation device
US3990796A (en) * 1974-07-31 1976-11-09 The United States Of America As Represented By The Secretary Of The Navy Optical measurement of the difference in alignment between reference frames

Also Published As

Publication number Publication date
YU273878A (en) 1982-06-30
AT367388B (de) 1982-06-25
NO784054L (no) 1979-06-06
IN148435B (pt) 1981-02-21
US4187422A (en) 1980-02-05
ATA868178A (de) 1981-11-15

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