Colorimeter

A colorimeter is a light-sensing device used in colorimetry that measures the absorbance and transmittance of particular wavelengths of light as it moves through a sample of liquid by a specific solution. There are two different types of colorimeters: color densitometers for measurement of the density of primary colors and color photometers for measurement of color transmission and reflection. Common colorimeter applications include monitoring the growth of a yeast or bacterial culture, assessing beverage color and measuring ink colors used in printers and scanners, particularly during the production and inspection stages of manufacturing.