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CA2550034A1 - Streamlined method and apparatus for aligning a sensor to an aircraft - Google Patents

Streamlined method and apparatus for aligning a sensor to an aircraft Download PDF

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Publication number
CA2550034A1
CA2550034A1 CA002550034A CA2550034A CA2550034A1 CA 2550034 A1 CA2550034 A1 CA 2550034A1 CA 002550034 A CA002550034 A CA 002550034A CA 2550034 A CA2550034 A CA 2550034A CA 2550034 A1 CA2550034 A1 CA 2550034A1
Authority
CA
Canada
Prior art keywords
aircraft
sensor
laser
reference frame
misalignment
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.)
Granted
Application number
CA002550034A
Other languages
French (fr)
Other versions
CA2550034C (en
Inventor
Donald R. Mcmillan
Gregory Foroglou
Scott E. Hoffman
Joaquin E. Carvajal
William R. Checcia
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.)
Northrop Grumman Systems Corp
Original Assignee
Individual
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 Individual filed Critical Individual
Priority claimed from CA002443263A external-priority patent/CA2443263C/en
Publication of CA2550034A1 publication Critical patent/CA2550034A1/en
Application granted granted Critical
Publication of CA2550034C publication Critical patent/CA2550034C/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01B—MEASURING LENGTH, THICKNESS OR SIMILAR LINEAR DIMENSIONS; MEASURING ANGLES; MEASURING AREAS; MEASURING IRREGULARITIES OF SURFACES OR CONTOURS
    • G01B11/00—Measuring arrangements characterised by the use of optical techniques
    • G01B11/26—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes
    • G01B11/27—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes
    • G01B11/272—Measuring arrangements characterised by the use of optical techniques for measuring angles or tapers; for testing the alignment of axes for testing the alignment of axes using photoelectric detection means

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Length Measuring Devices By Optical Means (AREA)
  • Navigation (AREA)

Abstract

An apparatus for sensing mis-alignment between an aircraft inertial reference frame and a reference frame of an attached sensor is disclosed. The apparatus includes a first laser mounted on the sensor and in the center of and normal to a first measuring surface; and, a second laser also mounted on the sensor perpendicular to the first laser and in the center of and normal to a second measuring surface. A first reflector is mounted to and aligned with the inertial reference frame of the aircraft and is disposed for reflecting a beam of light from the first laser, whereby misalignment in roll and yaw between the sensor and the aircraft is reflected on the first measuring surface. In a similar manner, a second reflector is mounted to and aligned with the inertial reference frame of the aircraft and perpendicular to the first reflector, and is disposed for reflecting a beam of light from the second laser, whereby misalignment in roll and pitch between the sensor and the aircraft is reflected on the second measuring surface. The misalignment bias may later be read manually or electronically, and then used by the aircraft's or sensor's computer system to compensate for the misalignment bias.
CA002550034A 2003-09-29 2003-09-29 Streamlined method and apparatus for aligning a sensor to an aircraft Expired - Lifetime CA2550034C (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA002443263A CA2443263C (en) 2001-11-26 2003-09-29 Streamlined method and apparatus for aligning a sensor to an aircraft

Related Parent Applications (1)

Application Number Title Priority Date Filing Date
CA002443263A Division CA2443263C (en) 2001-11-26 2003-09-29 Streamlined method and apparatus for aligning a sensor to an aircraft

Publications (2)

Publication Number Publication Date
CA2550034A1 true CA2550034A1 (en) 2005-03-29
CA2550034C CA2550034C (en) 2008-11-18

Family

ID=36930129

Family Applications (1)

Application Number Title Priority Date Filing Date
CA002550034A Expired - Lifetime CA2550034C (en) 2003-09-29 2003-09-29 Streamlined method and apparatus for aligning a sensor to an aircraft

Country Status (1)

Country Link
CA (1) CA2550034C (en)

Also Published As

Publication number Publication date
CA2550034C (en) 2008-11-18

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Effective date: 20230929