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Grid Test Chart

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This Grid Test Chart Instrument are Certified with
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NJ-10-100A is designed for operational adjustment and control of TV cameras. It consists of circles permitting rough visual appraisal of scan linearity, grid lines serving the purpose of adjusting registration and wedges serving the purpose of resolution appraisal.

A grid structure consisting of 23 horizontal and 35 vertical lines is arranged on a white background. 3 grid lines each divide the outer 3 grid rows in the middle. The width of the grid lines is 0.15% of the picture width. The large circular line has a diameter of 83 1/3% of the picture height, the 5 small circular lines have a diameter of 25% of the picture height.

4 resolution wedges are arranged in the large circle at angles of 0°, 45°, 90°, and 135° corresponding to signal frequencies of 2-10 MHz. (The marking ends at 8 MHz and 600 lines).

UTILIZATION

  • The test chart is designed for operational adjustment and control of TV cameras.
  • The circles permit rough visual appraisal of scan linearity.
  • The grid lines serve the purpose of adjusting registration.
  • The wedges serve the purpose of resolution appraisal.

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FAQs About  Geometric Test Charts

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


Our professional team will give you the best suggestion as long as you tell us what kind of test you need to do and the required specification.


The ΔE (Delta E) formula of the CIELAB color space is usually used to measure color difference. The difference is measured in a colorimeter or spectrophotometer to gauge the level of perceptibility of the difference between two samples in terms of L*a*b*.


In the study of chemical reactions, calorimetry deals with changes in heat (energy and enthalpy). Spectrophotometry is the measurement of the light absorbance or light transmittance to determine the concentration or color of a solution. The first one monitors the thermal processes, whereas the second one addresses the aspects of light and color.


The principle of colorimetry is the law of Beer-Lambert, which says that the intensity of light absorbed by a colored solution is proportional to the concentration of the absorbing species and the path length. It measures the extent of light that is absorbed at certain wavelengths.


To ensure a consistent color perception, observers should look at samples at a 45° light angle and 0° viewing angle to reduce glare.


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