Sineimage YE04 Bar Test Chart (IEC 61146)
The bar test chart is designed for checking the transmission
characteristics of TV cameras at intermediate and deep frequencies.
In the upper part of the picture 4 black horizontal bars of
different length are arranged in a white surrounding. The lower
part is a mirror image to the upper one; however white bars are
arranged in a black surrounding. A narrow vertical strip of black
and white each are located in the center of the picture. These
strips resp. bars generate puls signals of approx. 2 µs, 5 µs, 12
µs and 32 µs.
UTILIZATION
Inadequate transmission characteristics at intermediate and deep
frequencies generate streaking effects in scanning line direction.
Streaking may also be caused by defective clamping circuits. Long
streaking (high error-time-constancy) are clearly visible at the
monitor. Short streaking (low error-time-constancy) can be better
observed in the oscillogram. For this purpose an oscilloscope with
a line selector has to be used and the different bars may be
observed one after the other. Also the adjustment of streaking
(e.g. compensation of afterglow of flying spot scanners) should be
effected with the aid of picture monitor and oscilloscope.
The narrow vertical strips in the center of the picture show echo
disturbances, as may occur e.g. with defective delay lines in
circuits for aperture corrections. The large black and white areas
in both parts of the picture are designed to asses shadings,
background structure and other errors. For this purpose the test
chart may also be used upside down.
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Standard Transparent/Reflectance Test Chart Size
| Size | Picture size(4:3) | Picture size(16:9) | Chart Size(16:9) |
| A280 | 280*210mm | 280*157.5mm | 365*305mm |
| D240 | 240*180mm | 240*135mm | 320*290mm |
| D280 | 280*210mm | 80*157.5mm | 360*280mm |
- ISO 12233 Resolution Test Chart Size
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| Model | Specification | Size | Material |
| NQ-10-50A | 0.5X | 10x17.8 cm | photographic paper |
| NQ-10-100A | 1X | 20x35.6 cm | photographic paper |
| NQ-10-200A | 2X | 40x71.1 cm | photographic paper |
| NQ-10-400A | 4X | 80x142.2 cm | photographic paper |
| NQ-10-800A | 8X | 160x284.4 cm | photographic paper |
Remark: We support Any customized test charts only if you have high
resolution image and size.
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