015-0075-00: Difference between revisions
Jump to navigation
Jump to search
No edit summary |
No edit summary |
||
| (6 intermediate revisions by 2 users not shown) | |||
| Line 1: | Line 1: | ||
The Tektronix | {{Instrument Sidebar | ||
for measuring luminance nonlinearity in analog video systems. | |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: | The typical setup for this measurement is as follows: | ||
A video signal generator produces a pattern with a few vertical bars | :A video signal generator produces a pattern with a few vertical bars with uniformly increasing luminance. | ||
with uniformly increasing luminance. | :The signal is applied to the device or system under test. | ||
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. | ||
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 | ||
| Line 18: | Line 29: | ||
Tek 015-0075-00 2.jpg | Tek 015-0075-00 2.jpg | ||
</gallery> | </gallery> | ||
[[Category:Audio and video test equipment]] | |||
Latest revision as of 07:00, 3 November 2021
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.
Key Specifications
- please add
