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
For Harmonized Standards, check the EU site to confirm that the Standard is cited in the Official Journal.
Only cited Standards give presumption of conformance to New Approach Directives/Regulations.
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
Important note : All end users must be registered with an Account prior to user licenses being assigned.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.