BS EN 60094-3-1990 Magnetic tape sound recording and reproducing systems - Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tap.pdf

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1、BRITISH STANDARD BS EN 60094-3:1997 Incorporating amendment A3:1996 BS 6288-3: 1990 Incorporating amendment no.1:1996 IEC 94-3:1979 Incorporating amendment 1:1980, amendment2:1988 and amendment3:1996 BS 6288-3:1990 Renumbered Magnetic tape sound recording and reproducing systems Part 3: Methods of m

2、easuring the characteristics of recording and reproducing equipment for sound on magnetic tape The European Standard EN60094-3:1996 including amendment A3:1996 has the status of a British Standard ICS 33.160.30BSEN60094-3:1997 This British Standard, having been prepared under the directionof the Ele

3、ctronic Equipment Standards Policy Committee, was published underthe authority of the BoardofBSI and comes intoeffecton 31May1990 BSI 09-1999 First published November 1982 Second edition May 1990 The following BSI references relate to the work on this standard: Committee reference EEL/22 Draft for c

4、omment BSI News June1989 ISBN 0 580 18108 1 Committees responsible for this British Standard The preparation of this British Standard was entrusted by the Electronic Equipment Standards Policy Committee (EEL/-) to Technical Committee EEL/22, upon which the following bodies were represented: British

5、Broadcasting Corporation British Kinematograph, Sound and Television Society Council for Educational Technology for the United Kingdom Electronic Engineering Association Independent Broadcasting Authority Independent Television Association Sound and Communication Industries Federation The following

6、bodies were also represented in the drafting of this standard, through subcommittees and panels: Association of Professional Recording Studios Audio Engineering Society British Tape Industry Association Royal Photographic Society Amendments issued since publication Amd. No. Date of issue Comments 92

7、86 February 1997 Indicated by a sideline in the marginBSEN60094-3:1997 BSI 09-1999 i Contents Page Committees responsible Inside front cover National foreword ii Section 1. Introduction 1 Scope 3 2 Object 3 Section 2. General notes on measurements 3 Information to be supplied by manufacturer of equi

8、pment 3 4 Identification 3 5 Technical description 3 6 Mechanical characteristics 3 7 Electrical characteristics 5 8 Rated conditions 5 9 Performance claims 7 Section 3. Precautions to be taken during measurements 10 Conditions of measurement 9 Section 4. Methods of measurement 11 Measurement of mec

9、hanical parameters 10 12 Measurement of electrical parameters 14 Annex ZA (normative) Normative references to international publicationswiththeir corresponding European publications 22 Publications referred to Inside back coverBSEN60094-3:1997 ii BSI 09-1999 National foreword This British Standard h

10、as been prepared by Subcommittee EPL/100/2 (formerlyEEL/22) and is the English language version of EN60094-3:1996 Magnetic tape sound recording and reproducing systems Part3 Methods of measuring the characteristics of recording and reproducing equipment for sound on magnetic tape, including amendmen

11、t A3:1996, published by the European Committee for Electrotechnical Standardization (CENELEC). It is identical with IEC94-3:1979 including Amendment1:1980, Amendment2:1988 and Amendment3:1996, published by the International Electrotechnical Commission(IEC). Agreement has been given to retain the cro

12、ss-reference of this standard as Part3 of the BS6288 series for ease of reference in relation to other Parts of the series. This standard supersedes BS6288-3:1982 which has been withdrawn. Additional information. The note to6.3 contains a mandatory statement and should therefore be regarded as part

13、of the main text. BS 6288 consists currently of the following Parts: Part 1 (BS EN60094-1) Specification for general conditions and requirements Part 2 (BS EN60094-2) Calibration tapes Part 3 (BS EN60094-3) Methods of measuring the characteristics of recording and reproducing equipment for sound on

14、magnetic tape Part 4 (BS EN60094-4) Mechanical magnetic tape properties Part 5 (BS EN60094-5) Electrical magnetic tape properties Part 6 Specification for reel-to-reel systems Part 7 (BS EN60094-7) Specification for cassettes for commercial tape records and domestic use Part 8 Specification for eigh

15、t track magnetic tape cartridge for commercial tape records and domesticuse Part 9 Specification for magnetic tape cartridge for professional use Part 10 Specification for time and address codes Part 11 Guide to and address code for compact cassettes Cross-references Publication referred to Correspo

16、nding British Standard BS EN60094 Magnetic tape sound recording and reproducing systems EN 60094-1:1993 (IEC94-1:1981) BS EN60094-1:1994 Specification for general conditions and requirements EN 60094-4:1994 (IEC 94-4:1986) BS EN60094-4:1994 (BS6288-4:1994) Mechanical magnetic tape properties EN 6009

17、4-5:1993 (IEC 94-5:1988) BS EN60094-5:1994 Specification for electrical magnetic tape properties EN 60651:1994 (IEC 651:1979) BS EN60651:1994 Specification for sound level meters BS6840 Sound system equipment IEC 268-1:1985 Part1:1987 Methods for specifying and measuring general characteristics used

18、 for equipment performance IEC 268-3:1988 Part3:1992 Methods for specifying and measuring the characteristics of sound system amplifiersBSEN60094-3:1997 BSI 09-1999 iii A British Standard does not purport to include all the necessary provisions of a contract. Users of British Standards are responsib

19、le for their correct application. Compliance with a British Standard does not of itself confer immunity from legal obligations. Publication referred to Corresponding British Standard IEC 268-15:1987 Part15:1992 Specification for matching values for the interconnection of sound system components IEC

20、386:1972 BS4847:1989 Method of measurement of speed fluctuations in sound recording and reproducing equipment Summary of pages This document comprises a front cover, an inside front cover, pagesi toiv, theENtitle page, pages2 to22, an inside back cover and a back cover. This standard has been update

21、d (see copyright date) and may have had amendments incorporated. This will be indicated in the amendment table on the inside front cover.iv blankEUROPEAN STANDARD NORME EUROPENNE EUROPISCHE NORM EN 60094-3 April 1996 +A3 April1996 UDC 681.846.7:620.1:621.317.7.08 ICS 33.160.30 Supersedes HD 311.3 S2

22、:1989 Descriptors: Sound system equipment, sound recording and reproduction, magnetic tape, characteristic, measurement, test condition English version Magnetic tape sound recording and reproducing systems Part3: Methods of measuring the characteristics of recording and reproducing equipment for sou

23、nd on magnetic tape (includes amendment A3:1996) (IEC94-3:1979+A1:1980+A2:1988+A3:1996) Systmes denregistrement et de lecture du son sur bandes magntiques Partie 3: Mthodes de mesure des caractristiques des matriels denregistrement et de lecture du son sur bandes magntiques (inclut lamendement A3:19

24、96) (CEI 94-3:1979+A1:1980+A2:1988+ A3:1996) Systeme fr Tonaufzeichnung und -wiedergabe auf Magnetband Teil 3: Meverfahren zur Bestimmung der Eigenschaften von Aufnahme- und Wiedergabegerten (enthlt nderung A3:1996) (IEC 94-3:1979+A1:1980+A2:1988+ A3:1996) This European Standard was approved by CENE

25、LEC on1993-12-08; AmendmentA3 was approved by CENELEC on1996-03-05. 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-date lists and bibliograp

26、hical 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 under the responsibility of

27、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, Luxembourg, Netherlands,

28、Norway, Portugal, Spain, Sweden, Switzerland and UnitedKingdom. CENELEC European Committee for Electrotechnical Standardization Comit Europen de Normalisation Electrotechnique Europisches Komitee fr Elektrotechnische Normung Central Secretariat: rue de Stassart 35, B-1050 Brussels 1996 Copyright res

29、erved to CENELEC members Ref. No. EN 60094-3:1996 EEN60094-3:1996 BSI 09-1999 2 Foreword The text of the International Standard IEC94-3:1979+A1:1980+A2:1988, prepared by SC60A (transformed into SC100B, Recording, of IEC TC100, Audio, video and multimedia systems and equipment), was approved by CENEL

30、EC as HD311.3 S2:1989 on1989-08-01. As a consequence of the IEC-CENELEC Agreement, this Harmonization Document was submitted to the formal vote for conversion into a European Standard and was approved by CENELEC as EN60094-3 on1993-12-08. The following date was fixed: Annexes designated “normative”

31、are part of the body of the standard. In this standard, Annex ZA is normative. Annex ZA has been added by CENELEC. Foreword to amendment A3 The text of document60A/177/FDIS, future amendment3 to IEC94-3:1979, prepared by SC60A (transformed into SC100B, Recording, of IEC TC100, Audio, video and multi

32、media systems and equipment), was submitted to the IEC-CENELEC parallel vote and was approved by CENELEC as amendment A3 to EN60094-3:1996 on1996-03-05. The following dates were fixed: latest date by which the EN has to be implemented at national level by publication of an identical national standar

33、d or by endorsement (dop) 1996-12-01 latest date by which the amendment has to be implemented at national level by publication of an identical national standard or by endorsement (dop) 1996-12-01 latest date by which the national standards conflicting with the amendment have to be withdrawn (dow) 19

34、96-12-01EN60094-3:1996 BSI 09-1999 3 Section 1. Introduction 1 Scope This standard applies to recording and reproducing equipment for sound on magnetic tape (reel-to-reel, cassette and cartridge) for both professional and domestic applications, and will be referred to as “equipment” throughout this

35、standard. This standard does not apply to special purpose equipment such as high speed duplicators, artificial reverberation recorders or dictation machines not employing the reel-to-reel, cassette or cartridge principle. This standard excludes all aspects of safety, which are to be found in IEC Pub

36、lication65, Safety Requirements for Mains Operated Electronic and Related Apparatus for Household and Similar General Use. It also excludes magnetic tape properties, which are to be found in IEC Publications94-4 and94-5. 2 Object The object of this standard is to list and define parameters affecting

37、 the performance of recording and reproducing equipment for sound on magnetic tape, and to establish conditions and agreed methods of measurement of these parameters. Section 2. General notes on measurements 3 Information to be supplied by manufacturer of equipment The information required is listed

38、 in this section. It falls into two distinct categories: mandatory information to be clearly shown on the equipment, indicated by an “A” on the right-hand side of the page; optional information to be given separately, e.g.in an instruction manual relating to and supplied with the equipment. It is es

39、sential that mandatory information outside the scope of this standard (e.g.aspects of safety IEC Publication65) shall also be given in the correct location. 4 Identification 5 Technical description All parameters in this clause are subject to verification only. For the purpose of this clause, an “ad

40、justable” control shall be deemed to be one that is readily accessible to the user when the equipment is in its intended use. Its adjustment shall necessitate neither relocation of the equipment nor the dismantling of any of its parts. 6 Mechanical characteristics 6.1 Space and support requirements

41、during operation of equipment Name of manufacturer or supplier Country of manufacture A Model or type number (variants, if any, to be stated) A Characteristics Units Minimum height mm Minimum width mm Minimum depth mm Operating position horizontal, vertical or other Total mass kgEN60094-3:1996 4 BSI

42、 09-1999 6.2 Tape carrier and tape 6.3 Tape transport system NOTEOn multispeed equipment, the speeds may be marked with the first two digits of the rated speed, e.g.the rated speed of9.53cm/s may be shown as“9.5”. For single-speed cassette and cartridge equipment, the speed need not be marked on the

43、 equipment but shall be stated in the instruction manual. Adjustable tape speed on: Record/reproduce. Fast forward. Rewind. Adjustable tape tension: Between capstans. On supply reel. On take-up reel. Number of motors. Type of capstan (e.g.single or multiple capstan). Reversible tape drive (record/re

44、produce). Type of capstan drive motor(s). Special facilities: Automatic stop. Automatic reverse. Remote start. Remote stop. Cueing/Pause device. Remote fast forward. Remote fast reverse. Adjustable tape path. Capstan drive motor(s) synchronizable to electric power supply frequency. 6.4 Tape heads Co

45、mbined or separate erase/record/reproduce heads. Combined or separate bias heads. Adjustable azimuth. Adjustable zenith. Adjustable track alignment. Number of tracks. Maximum number of tracks on intended tape width. Magnetic head material. Units Type of tape carrier (e.g.cassette, cartridge or reel-

46、to-reel) Type of reel (e.g.Type II) Maximum reel diameter without overhang mm Maximum reel diameter with overhang mm Tape width mm Unit Rated speed(s) cm/s AEN60094-3:1996 BSI 09-1999 5 7 Electrical characteristics 7.1 Reproducing data Maximum number of simultaneous reproducing channels. Number of r

47、eproducing channels. Reproducing characteristic(s) (e.g.IEC). Adjustable gain. Adjustable balance. Adjustable equalization. Type of noise reduction system. Automatic gain control. 7.2 Recording data Maximum number of simultaneous recording channels. Number of recording channels. Adjustable gain. Adj

48、ustable balance. Adjustable equalization. Type of noise reduction system. Automatic gain control. Adjustable bias current. 8 Rated conditions For convenience in specifying how tape recorders are to be set up for measurement or verification, it is necessary to define certain rated conditions under wh

49、ich measurements shall be made. Furthermore, some of these rated conditions must be related to a specified calibration or reference tape. The following ratings are basic to the methods of measurement specified in this standard: Rated environmental conditions. Rated power supply. Rated recording level. Rated load impedance. Rated source impedance. Rated input electromotive force (e.m.f.). Rated output voltage. Rated bias setting. To obtain the correct conditions for measurement, the above-mentioned ratings shall be taken from the manufactu