1、BRITISH STANDARD BS EN 61040:1993 IEC 1040:1990 Specification for Power and energy measuring detectors, instruments and equipment for laser radiation The European Standard EN 61040:1992 has the status of a British Standard UDC 621.317.7:621.37BSEN61040:1993 This British Standard, having been prepare
2、d under the directionof the Electronic Equipment Standards Policy Committee, was published underthe authority of the Standards Board and comes intoeffect on 15October 1993 BSI 10-1999 The following BSI references relate to the work on this standard: Committee reference EEL/28 Draft announced in BSI
3、News January1993 ISBN 0 580 22340 X Cooperating organizations The European Committee for Electrotechnical Standardization (CENELEC), under whose supervision this European Standard was prepared, comprises the national committees of the following countries: Austria Italy Belgium Luxembourg Denmark Net
4、herlands Finland Norway France Portugal Germany Spain Greece Sweden Iceland Switzerland Ireland United Kingdom Amendments issued since publication Amd. No. Date CommentsBSEN61040:1993 BSI 10-1999 i Contents Page Cooperating organizations Inside front cover National foreword ii Foreword 2 Text of EN6
5、1040 5 National annex NA (informative) Committees responsible Inside back cover National annex NB (informative) Cross-references Inside back coverBSEN61040:1993 ii BSI 10-1999 National foreword This British Standard has been prepared under the direction of the Electronic Equipment Standards Policy C
6、ommittee and is the English language version of EN61040:1992Power and energy measuring detectors, instruments and equipment for laser radiation, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC1040:1990 published by the International Electr
7、otechnical Commission (IEC). The standard specifies definitions and minimum requirements for laser equipment and also gives suitable test procedures to be used. A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsible for t
8、heir correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Summary of pages This document comprises a front cover, an inside front cover, pages i and ii, theEN title page, pages2 to 12, an inside back cover and a back cover. This standard
9、has been updated (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.EUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN61040 October1992 UDC621.317.7:621.37 Descriptors: Laser, safety, equipment classification, user
10、s guide English version Power and energy measuring detectors, instruments and equipment for laser radiation (IEC1040:1990) Dtecteurs, instruments et matriels de mesurage de puissance et dnergie des rayonnements laser (CEI1040:1990) Empfnger, Megerte und Anlagen zur Messung von Leistung und Energie v
11、on Laserstrahlung (IEC1040:1990) This European Standard was approved by CENELEC on1992-09-15. CENELEC members are bound to comply with the CEN/CENELEC Internal Regulations which stipulate the conditions for giving this European Standard the status of a national standard without any alteration. Up-to
12、-date lists and bibliographical references concerning such national standards may be obtained on application to the Central Secretariat or to any CENELEC member. This European Standard exists in three official versions (English, French, German). A version in any other language made by translation un
13、der the responsibility of a CENELEC member into its own language and notified to the Central Secretariat has the same status as the official versions. CENELEC members are the national electrotechnical committees of Austria, Belgium, Denmark, Finland, France, Germany, Greece, Iceland, Ireland, Italy,
14、 Luxembourg, Netherlands, Norway, Portugal, Spain, Sweden, Switzerland and United Kingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050
15、Brussels 1992 Copyright reserved to CENELEC members Ref.No.EN61040:1992EEN61040:1992 2 BSI 10-1999 Foreword At the request of the CENELEC Technical Committee TC76, Laser equipment, the International Standard IEC1040:1990was submitted to the CENELEC Unique Acceptance Procedure (UAP) in December1991fo
16、r acceptance as a European Standard. The text of the International Standard was approved by CENELEC as EN61040 on15September1992. The following dates were fixed: For products which have complied with the relevant national standard before1993-09-01, as shown by the manufacturer or by a certification
17、body, this previous standard may continue to apply for production until 1998-09-01. Annexes designated “normative” are part of the body of the standard. In this standard, Annex ZA is normative. Contents Page Foreword 2 1 Scope and object 5 2 Terminology 5 2.1 Calibration 5 2.2 Calibration factor 5 2
18、.3 Detector 5 2.4 Equipment (for measuring laser power or energy) 5 2.5 Error of measurement 5 2.6 Fall time constant 5 2.7 Indicator (for a laser detector) 5 2.8 Individual uncertainties 5 2.9 Instrument (for measuring laser power or energy) 5 2.10 Irradiance 5 2.11 Laser 5 2.12 Laser detector 5 2.
19、13 Laser radiation 5 2.14 Measurement result 5 2.15 Optical spectral range 6 2.16 Radiant energy 6 2.17 Radiant exposure 6 2.18 Radiant power (radiant flux) 6 2.19 Range of application 6 2.20 Relative uncertainty 6 2.21 Response time constant 6 2.22 Responsivity 6 2.23 Root-sum-square uncertainty 6
20、2.24 Calibration spectral bandwidth 6 2.25 Spectral responsivity 6 2.26 Uncertainty of measurement 6 2.27 Waiting time 6 2.28 Zero drift 6 3 Requirements 6 3.1 Minimum requirements 7 3.2 Additional requirements for a detector, an instrument or equipment with specification of an accuracy class 7 3.3
21、Calibration 7 3.4 Overload 7 3.5 Users possibility of checking proper operation 8 4 Tests 8 4.1 Change of responsivity with time 8 latest date of publication ofan identical national standard (dop)1993-09-01 latest date of withdrawal ofconflicting national standards (dow)1993-09-01EN61040:1992 BSI 10
22、-1999 3 Page 4.2 Spatial change of responsivity (non uniformity) 8 4.3 Change of responsivity during irradiation 8 4.4 Temperature dependence of responsivity 8 4.5 Dependence of responsivity on the angle of incidence for non-polarized radiation 8 4.6 Dependence of responsivity on radiant power or ra
23、diant energy (non-linearity) 8 4.7 Wavelength dependence of responsivity 9 4.8 Dependence of responsivity on the angle of incidence for polarized radiation 9 4.9 Averaging with respect to time 9 4.10 Zero drift 9 4.11 Calibration 9 4.12 Overload 9 5 Operating instructions 9 5.1 Characteristic data 9
24、 5.2 Limiting values 10 5.3 Special instructions for operation 10 5.4 Power range (energy range) 10 5.5 Adjustment 10 5.6 Damage 10 5.7 Hazards 10 5.8 Maintenance 10 5.9 Storage conditions 10 5.10 Limits of checking the proper operation 10 6 Designation and inscriptions 10 Annex ZA (normative) Other
25、 international publications quoted in this standard with thereferences of the relevant European publications 114 blankEN61040:1992 BSI 10-1999 5 1 Scope and object This standard is applicable to instruments and equipment measuring the laser radiant power and laser radiant energy in the optical spect
26、ral range (with wavelength from100nm to1mm). If detectors are offered separately, this standard is also applicable to them The object of this standard is to lay down definitions and minimum requirements as well as suitable test procedures for the characteristics and the manufacturing standards for d
27、etectors, instruments and equipment for the measurement of power and energy of laser radiation. For the electrical safety of indicators and equipment, see IEC1010-1. 2 Terminology For the purposes of this standard, the following definitions apply: 2.1 calibration the set of operations which establis
28、h, under specified conditions, the relationship between values indicated by the measuring instrument or output signal of the detector and the corresponding known values of a measurand NOTEThe result of a calibration is sometimes expressed as a calibration factor or as a series of calibration factors
29、 in the form of a calibration curve. 2.2 calibration factor quotient of instrument indication by the detector input quantity 2.3 detector see laser detector 2.4 equipment (for measuring laser power or energy) instrument measuring laser power or energy combined with auxiliary devices 2.5 error of mea
30、surement the difference between measured value and true value of a measurand 2.6 fall time constant the time required for the detector output to fall, after a removal of a steady input, from its initial value to the fractionof its total change 2.7 indicator (for a laser detector) device to indicate
31、the detector output in radiometric units 2.8 individual uncertainties when a measurement result y depends on various (noncorrelated) influence quantities x i (i =1,2,3 .), its uncertainty, which is caused only by the uncertainty %x jwhen determining on fixing the variable x j , is an individual unce
32、rtainty %y j it is approximately given by 2.9 instrument (for measuring laser power or energy) combination of a laser detector and an indicator 2.10 irradiance at a point of a surface, the quotient of the radiant power d9 incident on an element dA of a surface containing the point by the area to tha
33、t element 2.11 laser any device which can be made to produce or amplify electromagnetic radiation in the optical spectral range primarily by the process of controlled stimulated emission. (See IEC825.) 2.12 laser detector (brief: detector) a device which transduces radiant power or radiant energy in
34、to another, usually electrical, quantity without signal processing or indication 2.13 laser radiation all electromagnetic radiation emitted by a laser product in the optical spectral range which is produced as a result of controlled stimulated emission 2.14 measurement result the value obtained afte
35、r applying all appropriate corrections (including calibration factor) to the indicated value 1 e - Symbol: E Unit: W/m 2 %y j y x j -%x j = E d9 dA - =EN61040:1992 6 BSI 10-1999 2.15 optical spectral range wavelength range between100nm and1mm of the electromagnetic radiation 2.16 radiant energy ener
36、gy emitted, transferred, or received in the form of radiation 2.17 radiant exposure at a point on a surface, the radiant energy incident on an element of a surface divided by the area of that element 2.18 radiant power (radiant flux) power emitted, transferred, or received in the form of radiation 2
37、.19 range of application the range within which all parameters of the detector, instrument or equipment significant for reliable measurements are known within the accuracy of the class and where there is no overload hazard for the detector 2.20 relative uncertainty the uncertainty of measurement div
38、ided by the true value of the measurand 2.21 response time constant the time required for a detector output to rise from its initial value to (1 ) of its final value, when a steady input is instantaneously applied 2.22 responsivity quotient of the detector output quantity Y by the detector input qua
39、ntity X 2.23 root-sum-square uncertainty square root of the sum of squares of the individual uncertainties 2.24 calibration spectral bandwidth wavelength interval within which the spectral responsivity changes at the most by1/10of the calibration uncertainty under otherwise constant conditions 2.25
40、spectral responsivity quotient of the detector output increment dY(2) to the monochromatic detector input quantity increment dX(2) at a wavelength 2 as a function of the wavelength 2.26 uncertainty of measurement an estimate characterizing the range of values within which the true value of measurand
41、 lies at a95% confidence level 2.27 waiting time interval between the beginning of the irradiation of the detector surface with constant radiant power and the approximation of the detector output or instrument indication to its final stationary value to up to1/10of the calibration uncertainty 2.28 z
42、ero drift the change of a detector output or an instrument indication is referred to as zero drift if this change occurs without irradiation of the detector surface 3 Requirements All detectors, instruments and equipment for measuring laser radiation shall be suitably calibrated, pass the overload t
43、est and meet the minimum requirements specified in Sub-clause3.1. When the range, where the minimum requirements are met, depends on certain parameters: a) These parameters and their tolerable ranges shall be stated, and b) the devices shall continue to satisfy the requirements of Subclause3.1. Symb
44、ol: Q Unit: J Symbol: H Unit: J/m 2 Symbol: 9 Unit: W Symbol: s s = Y/X H dQ dA -E dt = = 9 dQ dt - = 1 e - Symbol: s(2) s 2 () dY 2 () dX 2 () - =EN61040:1992 BSI 10-1999 7 3.1 Minimum requirements When applying the test methods and test conditions laid down in clause4, the following errors of meas
45、urement shall not be exceeded. When some of the error sources mentioned are insignificant due to the limited applicability of a detector or instrument indicated by the manufacturer, they can be neglected (e.g. the wavelength dependence of responsivity in the case of a measuring instrument which is o
46、nly intended for a certain laser wavelength). If the tests are to apply to an instrument or an equipment instead of a detector, the responsivity shall be replaced by the calibration factor. 3.1.1 Change of responsivity with time 5% 3.1.2 Non-uniformity of responsivity over the detector surface 5% 3.
47、1.3 Change of responsivity during irradiation 2% 3.1.4 Temperature dependence of responsivity 5 % 3.1.5 Dependence of responsivity on the angle of incidence for non-polarized radiation 2% 3.1.6 Dependence of responsivity on radiant power or radiant energy (non-linearity) 5% 3.1.7 Wavelength dependen
48、ce of responsivity5% 3.1.8 Polarization dependence of responsivity for linearly polarized radiation 2% 3.1.9 Errors of averaging with respect to time of repetitively pulsed radiation 5% 3.1.10 Zero drift 5% 3.1.11 Calibration uncertainty 10% 3.2 Additional requirements for a detector, an instrument
49、or equipment with specification of an accuracy class For the classification in a special accuracy class (referred to as class in the following), all error sources mentioned in Sub-clauses 3.1.1 to 3.1.11 shall be taken into account unless they are insignificant due to the limited applicability of the detector, instrument or equipment indicated by the manufacturer. If the errors of measurement due to temperature dependence, non-linearity or wavelength dependence of responsivity are correcte
