At the most basic level, a spectrum analyzer can be described as a frequency- selective, peak-responding voltmeter calibrated to display the rms value of a sine wave. It is important to understand that the spectrum analyzer is not a power meter, even though it can be used to display power...
Learn what a spectrogram is in the beginner's guide to spectral processing for music production. How it works and best apps to use, ranked.
Robert Lea is a freelance science journalist focusing on space, astronomy, and physics. Rob’s articles have been published inNewsweek,Space,Live Science,Astronomymagazine andNew Scientist. He lives in the North West of England with too many cats and comic books. ...
In low cost spectrometers or in situations where accurate wavelength selection is not important, optical filters are used to isolate the wavelength region of interest. However, for accurate wavelength selection and the generation of spectra, a dispersive element that separates light into its constituent...
"Spectrum" refers to a range of different things, often colors or wavelengths, while "spectra" is its plural form, indicating multiple ranges or sets.
Because ionized gases respond to magnetic fields, a magnet on the wall of the chamber is used to bend the ions towards a detector. Lighter ions are bent quickly towards the detector, while heavier ions are bent at a slower rate. The resulting distribution of ions, called a mass spectra, ...
There are two main types of spectra. Continuous and line spectra and while these are generally different, it is possible to have both of them. Continuous spectrum can be learnt vividly in the context of light and electromagnetic spectrum. Here is a brief definition and description of these ...
Optical spectroscopy (or UV-Vis spectroscopy) is a versatile, non-invasive technique widely used to study a range of different materials. Useful for probing solutions, thin films, or bulk devices, it can help you determine the material properties and molecular structure of your sample. You can ...
A Power Spectral Density (PSD) is the measure of signal's power content versus frequency. A PSD is typically used to characterize broadband random signals. The amplitude of the PSD is normalized by the spectral resolution employed to digitize the signal. ...
**WHAT IS A SPECTROPHOTOMETER? Spectrophotometer:Instrument used to measure the intensity of wavelengths in a spectrum of light compared with the intensity of light from a standard source. II Device for measuring the brightness of the various portions of spectra. ...