Dec 1, 2017 | Characterization, Glossary of Spectroscopy Terms, Software
Delta E is an equation to describe the difference between two colors when using the CIE L* a* b* graph. It is defined as follows: As a general rule of thumb, a delta E of one is barely perceptible and a delta E greater than three means two different colors. However,...
Dec 1, 2017 | Characterization, Glossary of Spectroscopy Terms, Software
The correlated color temperature is another way to describe a light source’s color point on the 1932 CIE chromaticity diagram. It compares the color to that of a blackbody source heated to a certain temperature. For example, light bulbs are described as 2700K, 5000K,...
Dec 1, 2017 | Glossary of Spectroscopy Terms, Software
Episodic Data Capture is a tool in the SpectraWiz software that can be used to capture spectra over a certain time period. It can be found under the “Setup” menu. For example, it could be set up to capture a spectrum every second while a reaction is occurring to...
Dec 1, 2017 | Characterization, Glossary of Spectroscopy Terms, Software
Chroma describes how pure, or monochromatic, a color is compared to a white surface with the same illumination. For example, if a white surface is illuminated with 0.1W m-2 nm-1, the irradiance spectrum will also show 0.1W m-2 nm-1 at all visible wavelengths...
Dec 1, 2017 | Glossary of Spectroscopy Terms, Software
In the SpectraWiz software, the data log is a utility that records instantaneous samples every time you click a button that says “Save Sample.” It stores all of them, with timestamps, in a common file. Data stored in the log is not deleted unless the “Clear” button is...