BS EN 61237-1:1994
Current
The latest, up-to-date edition.
Broadcast video tape recorders. Methods of measurement Mechanical measurements
Hardcopy , PDF
English
15-01-1995
Cooperating organizations
National foreword
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)
Figures
Annexes
A. Magnetic development of recorded tape
B. Bibliography
ZA. (normative) Other international publications quoted
in this standard with the references of the relevant
European publications
National annex NA (informative) Committees responsible
National annex NB (informative) Cross-references
Contains measurements relating to the compatibility parameters for recording and measuring methods on the recorded tape. Tolerances for rated values for acceptable performance are not included and should be derived from the IEC publications as appropriate or the manufacturer\'s instructions.
Committee |
EPL/100
|
DevelopmentNote |
Also numbered as IEC 61237-1 Supersedes 91/03062 DC (11/2005)
|
DocumentType |
Standard
|
Pages |
18
|
PublisherName |
British Standards Institution
|
Status |
Current
|
Supersedes |
Standards | Relationship |
I.S. EN 61237-1:1995 | Identical |
DIN EN 61237-1:1995-02 | 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 |
BS EN 61105:1994 | Specification for reference tapes for video tape recorder systems |
BS 7537-1:1991 | Measurement techniques and operational adjustments of broadcast VTRs Guide to operational adjustments on analogue composite broadcast VTRs |
BS 4967:1983 | Specification for transverse track video tape recorders |
BS 6865:1987 | Specification for time and control codes for video tape recorders |
BS 7537-2:1991 | Measurement techniques and operational adjustments of broadcast VTRs Guide to special mechanical measurements and alignments |
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