SN EN 61237-1 : 1994
Current
The latest, up-to-date edition.
BROADCAST VIDEO TAPE RECORDERS - METHODS OF MEASUREMENT - PART 1: MECHANICAL MEASUREMENTS
12-01-2013
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
Describes the mechanical measurement methods on video tape recorders relating to the compatibility parameters for recording and measuring methods of the recorded tape. Coverage includes: mechanical measurements, optical measurements, diameter of drums, coplanarity error of video heads, and track location to the reference tape edge. Also gives detailed diagrams.
DocumentType |
Standard
|
PublisherName |
Swiss Standards
|
Status |
Current
|
Standards | Relationship |
BS EN 61237-1:1994 | Identical |
UNE-EN 61237-1:1996 | Identical |
I.S. EN 61237-1:1995 | Identical |
DIN EN 61237-1:1995-02 | Identical |
IEC 61237-1:1994 | Identical |
EN 61237-1:1994 | Identical |
Access your standards online with a subscription
Features
-
Simple online access to standards, technical information and regulations.
-
Critical updates of standards and customisable alerts and notifications.
-
Multi-user online standards collection: secure, flexible and cost effective.