Analyse Color of Products with Portable Spectrophotometer

Reviewed by Anurag Mishra (Sr. Technical Consultant)

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Colors are everywhere in our daily lives. Have you ever measured color? The Portable Spectrophotometer is a device used to measure colors. Colors are dependent on lights. We can analyse or recognise an object by its color like red apple, green peas, blue shirt etc. When the white light shines on an object, the light may be reflected, absorbed or transmitted. For example, snow reflects all the lights and appears white. A black cloth absorbs all the light, a red piece of paper reflects red light better than other colors.

TP 800 Spectrophotometer allows for measurement in the spectrum of all wavelengths of visible light. It operates by isolating light at specific wavelengths from white lights. It splits the light up in a spectrum utilising a color grating system. A line of sensors reads each section of the spectrum that gives spectral data.

Spectrophotometers now a days are designed to be portable and durable. It offers flexibility in usage. There are various applications of this instrument such as:

  • Water quality determination
  • Analysing fertiliser features for agriculture
  • Pharmaceuticals
  • Processed foods
  • Forensics
  • Plastics
  • Coffee roasting
  • Paints industries
  • Enzymatic analysis in wine
  • Textiles etc.

The spectrophotometer technique measures light intensity as a function of wavelength. While choosing a spectrophotometer following things are to be kept in mind.

  • Detection limits
  • Density, shape, or size of the product to be tested
  • Wavelength range
  • Analytical working range
  • Measurement time
  • Data quality

The equipment can help in matching the color and color management and is an effective tool for management to control product quality. It is equipped with high class software for color management which is connected with computer. It is effective in educational institutions, research institutions, food, medical, electronics, textile manufacturing, plastics, textile processing, etc.

Testronix R & D team has worked on portable spectrophotometers under various standards like American, German and Japanese. It adheres to CIE, CNS, ASTM E313, AATCC, ASTM D1925 standards. Its silicon photodiode array sensor effectively measures various color wavelengths. It has a large memory to store 10000 data. The product is unique as it gives high-resolution capacitive touch screen with 3.5 inches. Homogenisation ray of lights with oversized integrating space. Two standard observer angles. Software based output test results. The minimum interval between measurements is 1.5 s. It has combined LED light sources.

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