Definition of spectrometer. 1  1 : an instrument used for measuring wavelengths of light spectra. 2  2 : any of various analytical instruments in which an emission (as of particles or radiation) is dispersed according to some property (as mass or energy) of the emission and the amount of dispersion is measured nuclear magnetic resonance spectrometer.
1 bar is equal to 1000 millibars. Just like how there are 1000 millilitres in a litre, and 1000 milliseconds in a second. 1 millibar = 0.001 bars.
The bar is a measurement unit of pressure, equal to 1,000,000 dynes per square centimetre (baryes), or 100,000 newtons per square metre (pascals). The word bar is of Greek origin, bÃ¡ros meaning weight. Its official symbol is bar; the earlier b is now deprecated, but still often seen especially as mb rather than the proper mbar for millibars. âºâº Definition: Pascal. The pascal (symbol Pa) is the SI unit of pressure.It is equivalent to one newton per square metre.