BS-EN-ISO-11670-2000.pdf
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1、| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | BRITISH STANDARD BS EN ISO 11670:2000 The
2、European Standard EN ISO 11670:1999 has the status of a British Standard ICS 31.260 NO COPYING WITHOUT BSI PERMISSION EXCEPT AS PERMITTED BY COPYRIGHT LAW Lasers Test methods for laser beam parameters Beam positional stability Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00
3、 2006, Uncontrolled Copy, (c) BSI This British Standard, having been prepared under the direction of the Consumer Products and Services Sector Committee, was published under the authority of the Standards Committee and comes into effect on 15 October 2000 BSI 10-2000 ISBN 0 580 36489 5 BS EN ISO 116
4、70:2000 Amendments issued since publication Amd. No.DateComments National foreword This British Standard is the official English language version of EN ISO 11670:1999. It is identical with ISO 11670:1999. The UK participation in its preparation was entrusted to Technical Committee CPW/172, Optics an
5、d Optical Instruments, which has the responsibility to: aid enquirers to understand the text; present to the responsible international/European committee any enquiries on the interpretation, or proposals for change, and keep the UK interests informed; monitor related international and European devel
6、opments and promulgate them in the UK. A list of organizations represented on this committee can be obtained on request to its secretary. Cross-references Attention is drawn to the fact that CEN and CENELEC Standards normally include an annex which lists normative references to international publica
7、tions with their corresponding European publications. The British Standards which implement international or European publications referred to in this document may be found in the BSI Standards Catalogue under the section entitled International Standards Correspondence Index, or by using the Find fa
8、cility of the BSI Standards Electronic Catalogue. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obli
9、gations. Summary of pages This document comprises a front cover, an inside front cover, the EN ISO title page, the EN ISO foreword page, the ISO title page, pages ii to iv, pages 1 to 12, the annex ZA page and a back cover. The BSI copyright notice displayed in this document indicates when the docum
10、ent was last issued. Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI EN ISO 11670:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun
11、 Nov 19 12:48:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI A Reference number ISO 11670:1999(E) INTERNATIONAL STANDARD ISO 11670 First edition 1999-08-01 Lasers and laser-related equipment Test methods for laser beam parameters Beam positional stability Lasers et quipements associs aux lasers Mthod
12、es dessai des paramtres des faisceaux laser Stabilit de vise du faisceau EN ISO 11670:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI ii Contents 1 Scope1 2 Normative references1 3 Terms and definitions .1 4 Coordinate systems and beam
13、axis.2 5 Test principles4 6 Measurement arrangement, test equipment and auxiliary devices5 7 Test procedures.6 8 Evaluation.7 9 Test report10 EN ISO 11670:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00 2006, Uncontrolled Copy, (c) BSI iii Foreword ISO (the Internation
14、al Organization for Standardization) is a worldwide federation of national standards bodies (ISO member bodies). The work of preparing International Standards is normally carried out through ISO technical committees. Each member body interested in a subject for which a technical committee has been e
15、stablished has the right to be represented on that committee. International organizations, governmental and non-governmental, in liaison with ISO, also take part in the work. ISO collaborates closely with the International Electrotechnical Commission (IEC) on all matters of electrotechnical standard
16、ization. International Standards are drafted in accordance with the rules given in the ISO/IEC Directives, Part 3. Draft International Standards adopted by the technical committees are circulated to the member bodies for voting. Publication as an International Standard requires approval by at least
17、75 % of the member bodies casting a vote. International Standard ISO 11670 was prepared by Technical Committee ISO/TC 172, Optics and optical instruments, Subcommittee SC 9, Electro-optical systems. EN ISO 11670:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00 2006, Unc
18、ontrolled Copy, (c) BSI iv Introduction The centre of a laser beam is defined as the centroid or first-order spatial moment of the power density distribution. The current propagation axis of a beam is then the straight line connecting two centroids measured at two different planes simultaneously in
19、a uniform, homogeneous medium. Beam axis instability may be characterized by transverse displacements and angular movements that are either monotonic, periodic or stochastic in time. It is unlikely that the movement of a laser beam will be randomly distributed and uniform in amplitude in all directi
20、ons. In general, the beam may move a greater amount in one direction. If one direction predominates, the procedures specified in this International Standard can be used to identify that dominant direction (the beam x-axis) and its azimuthal location relative to the axes of the laboratory system. Thi
21、s International Standard provides general principles for the measurement of these quantities. In addition, definitions of terminology and symbols to be used in referring to beam position are provided. EN ISO 11670:1999 Licensed Copy: sheffieldun sheffieldun, na, Sun Nov 19 12:48:42 GMT+00:00 2006, U
22、ncontrolled Copy, (c) BSI 1 Lasers and laser-related equipment Test methods for laser beam parameters Beam positional stability 1 Scope This International Standard defines methods for determining laser beam positional as well as angular stability. The test methods given in this International Standar
23、d are intended to be used for testing and characterization of lasers. 2 Normative references The following normative documents contain provisions which, through reference in this text, constitute provisions of this International Standard. For dated references, subsequent amendments to, or revisions
24、of, any of these publications do not apply. However, parties to agreements based on this International Standard are encouraged to investigate the possibility of applying the most recent editions of the normative documents indicated below. For undated references, the latest edition of the normative d
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