ES2199081B1 - PROCEDURE FOR THE OPTICAL CHARACTERIZATION OF LARGE MIRRORS BY REGISTRATION OF THE REFLECTED LIGHT OF A STAR. - Google Patents

PROCEDURE FOR THE OPTICAL CHARACTERIZATION OF LARGE MIRRORS BY REGISTRATION OF THE REFLECTED LIGHT OF A STAR.

Info

Publication number
ES2199081B1
ES2199081B1 ES200201771A ES200201771A ES2199081B1 ES 2199081 B1 ES2199081 B1 ES 2199081B1 ES 200201771 A ES200201771 A ES 200201771A ES 200201771 A ES200201771 A ES 200201771A ES 2199081 B1 ES2199081 B1 ES 2199081B1
Authority
ES
Spain
Prior art keywords
mirror
star
light
recording
optical characterization
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 - Fee Related
Application number
ES200201771A
Other languages
Spanish (es)
Other versions
ES2199081A1 (en
Inventor
Fernando Arqueros Martinez
Manuel Romero Alvarez
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.)
Universidad Complutense de Madrid
Original Assignee
Universidad Complutense de Madrid
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 Universidad Complutense de Madrid filed Critical Universidad Complutense de Madrid
Priority to ES200201771A priority Critical patent/ES2199081B1/en
Priority to AU2003254507A priority patent/AU2003254507A1/en
Priority to PCT/ES2003/000389 priority patent/WO2004013598A1/en
Publication of ES2199081A1 publication Critical patent/ES2199081A1/en
Application granted granted Critical
Publication of ES2199081B1 publication Critical patent/ES2199081B1/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
    • G01M11/00—Testing of optical apparatus; Testing structures by optical methods not otherwise provided for
    • G01M11/005—Testing of reflective surfaces, e.g. mirrors

Abstract

Procedimiento para la caracterización óptica de grandes espejos mediante el registro de la luz reflejada de una estrella. Mediante el registro con una cámara CCD de la luz de una estrella reflejada en el espejo, se determinan las componentes del vector normal al espejo en numerosos puntos. Para ello la cámara, situada en la región focal o región de concentración del espejo y apuntando hacia éste, toma imágenes del propio espejo registrando las zonas brillantes debidas a la reflexión de la luz de la estrella. Se describen varios métodos para conseguir fácilmente un gran número de imágenes y por tanto gran precisión en la caracterización. El método permite la caracterización óptica completa de cualquier espejo cuya distancia focal y tamaño sean mucho mayores que el diafragma de entrada de la cámara. En particular, para concentradores solares este método permite medir la distribución espacial de intensidad de luz en la región de concentración así como determinar errores de offset y comprobar la calidad del canteo en espejos con facetas.Procedure for the optical characterization of large mirrors by recording the reflected light of a star. By recording with a CCD camera the light of a star reflected in the mirror, the components of the normal vector to the mirror are determined at numerous points. To do this, the camera, located in the focal region or region of concentration of the mirror and pointing towards it, takes pictures of the mirror itself recording the bright areas due to the reflection of the star's light. Several methods are described to easily achieve a large number of images and therefore great accuracy in characterization. The method allows full optical characterization of any mirror whose focal length and size are much larger than the camera's input diaphragm. In particular, for solar concentrators this method allows measuring the spatial distribution of light intensity in the concentration region as well as determining offset errors and checking the quality of the edging in faceted mirrors.

ES200201771A 2002-07-26 2002-07-26 PROCEDURE FOR THE OPTICAL CHARACTERIZATION OF LARGE MIRRORS BY REGISTRATION OF THE REFLECTED LIGHT OF A STAR. Expired - Fee Related ES2199081B1 (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
ES200201771A ES2199081B1 (en) 2002-07-26 2002-07-26 PROCEDURE FOR THE OPTICAL CHARACTERIZATION OF LARGE MIRRORS BY REGISTRATION OF THE REFLECTED LIGHT OF A STAR.
AU2003254507A AU2003254507A1 (en) 2002-07-26 2003-07-25 Method for the optical characterisation of large mirrors consisting in recording the light reflected from a star
PCT/ES2003/000389 WO2004013598A1 (en) 2002-07-26 2003-07-25 Method for the optical characterisation of large mirrors consisting in recording the light reflected from a star

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
ES200201771A ES2199081B1 (en) 2002-07-26 2002-07-26 PROCEDURE FOR THE OPTICAL CHARACTERIZATION OF LARGE MIRRORS BY REGISTRATION OF THE REFLECTED LIGHT OF A STAR.

Publications (2)

Publication Number Publication Date
ES2199081A1 ES2199081A1 (en) 2004-02-01
ES2199081B1 true ES2199081B1 (en) 2005-02-16

Family

ID=31198108

Family Applications (1)

Application Number Title Priority Date Filing Date
ES200201771A Expired - Fee Related ES2199081B1 (en) 2002-07-26 2002-07-26 PROCEDURE FOR THE OPTICAL CHARACTERIZATION OF LARGE MIRRORS BY REGISTRATION OF THE REFLECTED LIGHT OF A STAR.

Country Status (3)

Country Link
AU (1) AU2003254507A1 (en)
ES (1) ES2199081B1 (en)
WO (1) WO2004013598A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3828481B1 (en) * 2018-07-25 2023-09-27 Fundación Cener-Ciemat Device, system and method of characterizing reflective elements through reflected light beams

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP2212626A4 (en) 2007-10-24 2014-01-08 Esolar Inc Calibration and tracking control of heliostats in a central tower receiver solar power plant
AU2016280892A1 (en) * 2015-06-19 2018-01-25 Solarreserve Technology, Llc Heliostat characterization using starlight

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3325919A1 (en) * 1983-07-19 1985-01-31 Messerschmitt-Bölkow-Blohm GmbH, 8012 Ottobrunn Method and device for checking the adjustment of the individual mirrors of heliostats of a solar power station

Non-Patent Citations (3)

* Cited by examiner, † Cited by third party
Title
JONES, S.A. et al. "VSHOT Measurement Uncertainty and Experimental Sensitivity Study". Proceedings of the 32th IECEC, Honolulu, HI, 1997, páginas 1877-1882. US 5623336 A (RAAB) 22.04.1997, todo el documento. *
KIERA, M. et al. "Measurement and Analysis of Heliostat Images". JOURNAL OF SOLAR ENERGY ENGINEERING, Vol. 111, Febrero 1989, páginas 2-9. 25 *
KONYSHERV, A.N. et al. "Television Method for Measuring Light Flux Intensity in the Focal Zone for solar Concentrator". APPLIED SOLAR ENERGY, Vol. 29, nº 3, 1993, páginas 60-63. *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP3828481B1 (en) * 2018-07-25 2023-09-27 Fundación Cener-Ciemat Device, system and method of characterizing reflective elements through reflected light beams

Also Published As

Publication number Publication date
ES2199081A1 (en) 2004-02-01
WO2004013598A1 (en) 2004-02-12
AU2003254507A1 (en) 2004-02-23

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