Three basic methods are described in this standard for calibrating laterally-modulated frequency records. The same general techniques also are applicable to vertically-modulated frequency records. The oldest of these is the Microscope Method, in which the recorded amplitude is measured directly by use of a microscope. The second method is the Light-Pattern Method, in which the recorded amplitude is determined by use of the principle that, under specified conditions, the reflected light from a band of recorded grooves forms a pattern the width of which is related to the recorded velocity. The main body of the Standard covers the Light-Pattern Method due to Buchmann-Meyer, while in the Appendix are given two approved refinements for improving accuracy of observation, particularly at short-recorded wavelengths.
- Status
- Inactive-Withdrawn Standard
- Board Approval
- 1958-02-13
Working Group Details
Other Activities From This Working Group
Current projects that have been authorized by the IEEE SA Standards Board to develop a standard.
No Active Projects
Standards approved by the IEEE SA Standards Board that are within the 10-year lifecycle.
No Active Standards
These standards have been replaced with a revised version of the standard, or by a compilation of the original active standard and all its existing amendments, corrigenda, and errata.
No Superseded Standards
These standards have been removed from active status through a ballot where the standard is made inactive as a consensus decision of a balloting group.
No Inactive-Withdrawn Standards
These standards are removed from active status through an administrative process for standards that have not undergone a revision process within 10 years.
No Inactive-Reserved Standards