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015-0075-00: Difference between revisions
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{{Instrument Sidebar | |||
|manufacturer=Tektronix | |||
|model=015-0075-00 | |||
|class=Audio/Video | |||
|series= | |||
|summary=Video Staircase Differentiator | |||
|image=Tek 015-0075-00 1.jpg | |||
|caption=Tek 015-0075-00 | |||
|introduced=(?) | |||
|discontinued=(?) | |||
|designers= | |||
|manuals= | |||
* ''please add'' [[Category:Manual needed]] | |||
}} | |||
The '''Tektronix 015-0075-00 Video Staircase Differentiator''' is intended for measuring luminance nonlinearity in analog video systems. | |||
The typical setup for this measurement is as follows: | |||
:A video signal generator produces a pattern with a few vertical bars with uniformly increasing luminance. | |||
:The signal is applied to the device or system under test. | |||
:The output is differentiated by the 015-0075-00 and viewed on an oscilloscope, triggering on the row sync signal. | |||
If the system under test has linear luminance response, the luminance waveform at its output will be a uniform staircase, and differentiating it will produce a series of pulses of equal amplitude. | |||
Deviations from linearity, e.g., dynamic compression, will be seen as pulses of decreasing amplitude. | |||
{{MissingSpecs}} | |||
==Pictures== | |||
<gallery> | <gallery> | ||
Tek 015-0075-00 1.jpg | Tek 015-0075-00 1.jpg | ||
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Tek 015-0075-00 2.jpg | Tek 015-0075-00 2.jpg | ||
</gallery> | </gallery> | ||
[[Category:Audio and video test equipment]] | |||