I.S. EN 61237-1:1995
Current
The latest, up-to-date edition.
BROADCAST VIDEO TAPE RECORDERS METHODS OF MEASUREMENT - PART 1: MECHANICAL MEASUREMENTS
Hardcopy , PDF
English
01-01-1995
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Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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Foreword
1 Scope
2 Normative references
3 General
4 Test conditions
5 Measuring equipment
5.1 Mechanical measurements
5.2 Optical measurements
6 Recorder measurements
6.1 Diameter of drum
6.2 Projection of video head pole tips
6.2.1 Mechanical measurement
6.2.2 Optical measurement
6.3 Gap width of video heads
6.4 Coplanarity error of video heads
7 Measurements on recorded tape
7.1 Tape speed and pitch of the video tracks
7.1.1 Tape speed v (first method)
7.1.2 Track pitch J (first method)
7.1.3 Tape speed and pitch of the video tracks
(second method)
7.2 Position of the video reference point (VRP)
7.2.1 Measurement of the VRP position (first method)
7.2.2 Tracking and drum phase error (second method)
7.3 Location of records on sound and time code tracks
7.3.1 Track location to the reference tape edge
7.3.2 Longitudinal location of records
7.4 Video track geometry
7.4.1 Video track width 1
7.4.2 Cross-tape measuring technique (first method)
7.4.3 Dynamic track measurement (second method)
Annex A (normative) Magnetic development of recorded tape
Annex B (informative) Bibliography
Annex ZA (normative) Other international publications quoted
in this standard with the references of the relevant
European publications
Describes the mechanical measurement methods on video tape recorders relating to the compatibility parameters for recording and measuring methods of the recorded tape.
| DevelopmentNote |
For CENELEC adoptions of IEC publications, please check www.iec.ch to be sure that you have any corrigenda that may apply. (01/2017)
|
| DocumentType |
Standard
|
| Pages |
40
|
| PublisherName |
National Standards Authority of Ireland
|
| Status |
Current
|
| Standards | Relationship |
| BS EN 61237-1:1994 | Identical |
| EN 61237-1:1994 | Identical |
| NF EN 61237-1 : 1994 | Identical |
| UNE-EN 61237-1:1996 | Identical |
| SN EN 61237-1 : 1994 | Identical |
| NBN EN 61237-1 : 1996 | Identical |
| IEC 61237-1:1994 | Identical |
| DIN EN 61237-1:1995-02 | Identical |
| IEC 60347:1982 | Transverse track recorders |
| HD 451 : 200S1 | TRANSVERSE TRACK VIDEO RECORDERS |
| HD 507 : 200S1 | TIME AND CONTROL CODE FOR VIDEO TAPE RECORDERS |
| EN 61105:1993 | Reference tapes for video tape recorder systems |
| IEC TR 61295:1994 | Calibration tapes for broadcast VTRs |
| IEC 61105:1991 | Reference tapes for video tape recorder systems |
| IEC 60461:2010 | Time and control code |
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