Bar Test Chart(IEC 61146)

This Bar Test Chart(IEC 61146) Instrument are Certified with
certify
1 Years Warranty (Additional support period of 3 years)

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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FAQs About  Other Charts

Yes. However, for LED retrofitting to meet industry standards, color- calibrated LED modules must be used for accurate color rendering. We usually do not recommend customers to modify it themselves, as this can affect the accuracy of the color and cause unnecessary losses


ΔE*ab ≤ 0.1: For general quality control in textiles, printing, plastics, etc.Recommended models: NH310, NR60CP, NR110, ColorReader series

ΔE*ab ≤ 0.03: For medium-precision applications such as automotive interiors and electronic housings.Recommended models: CR8, CR9, PS2080, PS2070 series

ΔE*ab ≤ 0.02: For high-precision applications such as coatings and dyeing.Recommended models: ST7700, ST70, ST60, PS2080, YS6060, MS30 series

ΔE*ab ≤ 0.01: For laboratory-grade precision measurement.Recommended models: TS8520, TS8560, TS8500, TS4020 series


Plastics, glasses, films, coatings, PET carboys,and packaging materials are common uses of hazemeter to monitor consistency and quality. 


Our machine is packed by standard export wooden box, it won’t be damaged. We’ve delivered many testing machines abroad by sea or by air without damage.

They provide accurate and repeatable assessments of color in various settings for the purpose of avoiding inconsistencies in mismatched items and ensuring steady production or branding.


The most common standard measuring gloss is ASTM D523, which covers the procedures of using a gloss meter at 20°, 60°, and 85° angles. The other international standard that is widely used in industrial and laboratory applications is the ISO 2813.


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