What is Chroma?
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...What is Photosynthetically Active Radiation (PAR)?
Photosynthetically active radiation is any radiation that can be used for photosynthesis. This is generally wavelengths in the visible range (400-700nm). Radiation outside this range is given zero weight. This is slightly different than photometry, which has...What is Photosynthetic Photon Flux Density?
The photosynthetic photon flux density is the amount of photosynthetically active photons (400-700nm) hitting a surface per unit area per unit time. The units are µmol (of photons) m-2 s-1.What is Radiometry?
Radiometry is simply the measurement of light. There are many characteristics of light that can be measured, but the most common are wavelength (color) related quantities and power related quantities, such as irradiance. StellarNet offers spectroradiometer systems for...What is Spectrometer Accuracy and Precision?
Accuracy is a general term that describes the agreement between a measurement and a true value. Precision is a general term that describes how close measured values are to each other, if they are clustered or spread out. Accuracy is affected by both random and...
Introducing our new Applied Spectroscopy Division
New Handheld Raman!
New! ChemWiz-ADK Handheld NIR Spectrophotometer with on board chemometrics and spectral matching!
Read More
Check out our SpectroChemistry Systems for UV-VIS and Fluorescence Applications
Learn More
New Spectrometer Python Application Driver
for Windows, Linux, RasPi, Mac
Check it out!
HYPER-Nova Highest Performance Raman Spectrometer
Learn More
