15-1959 AIEE American Standard for Industrial Control Apparatus
|Organization:||IEEE - Institute of Electrical and Electronics Engineers, Inc.|
|Publication Date:||12 January 1959|
|Page(s):||1 - 36|
This standard specifies the basic system parameters, i.e., the positions of recording head gaps, the scanning configuration, the axis of rotation of the video head wheel, and the appropriate tape tension for 1-in type B helical-scan television tape recorders for 525/60 monochrome or NTSC color syste...
1.1 The purpose of this practice is to specify the means to be employed in the calibration of densitometers utilized in the measurement of diffuse transmission densities. 1.2 This practice applies to densitometers utilized for the measurement of processed blackand-white photographic films and plates...