What is a Reference Spectrum?
This is a term used in the SpectraWiz software. For absorbance and transmittance, it is the initial intensity of the reference light and is used to calculate the two quantities. It is up to the user to determine the appropriate reference to use. Check out the General...What is a Fiber Optic Cable’s Bend Radius?
Fibers can be damaged if they are bent too far. The bend radius is the radius of the smallest circle a fiber can be bent into before it sustains damage. A smaller number means that a fiber can bend more sharply. The bend radius is proportional to fiber diameter, so a...What is a Numerical Aperture?
Numerical aperture is a measure of how many angles of acceptance an optic can accept. It is described by the following equation: where NA is the numerical aperture, n is the refractive index, and is the cone angle. Assuming the optic is in air (n=1), the numerical...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...What is Spectrometer Time Averaging?
To increase S/N, several acquisitions can be averaged together. This is called time averaging. Many sources of noise are random, meaning that they cause deviations around a true value. This means that the average is a statistical estimator for the true value. The...
Introducing our new Applied Spectroscopy Division
New Handheld Raman!
New! ChemWiz-ADK Handheld NIR Spectrophotometer with on board chemometrics and spectral matching!
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Check out our SpectroChemistry Systems for UV-VIS and Fluorescence Applications
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New Spectrometer Python Application Driver
for Windows, Linux, RasPi, Mac
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HYPER-Nova Highest Performance Raman Spectrometer
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