SPECTRUM ANALYZER, MICROPARTICLE MEASURING DEVICE, AND METHOD AND PROGRAM FOR ANALYZING SPECTRA OR DISPLAYING SPECTRAL CHARTS

摘要

PROBLEM TO BE SOLVED: To provide a technique for obtaining a spectral chart capable of displaying a wide dynamic range and negative numbers and properly reflecting intensity of light generated from microparticles.SOLUTION: A spectrum analyzer is provided with a processor which generates analysis data from measured data, including intensity values of light from a measuring object detected and acquired by a plurality of photosensors having different detection wavelength ranges, using an analytical function that includes linear and logarithmic functions as function elements and uses the light intensity value as a variable. The spectrum analyzer presents the analysis data in the form of a spectral chart with one axis representing a value corresponding to the detection wavelength region and the other axis representing the output value of the analytical function, thereby displaying a wide dynamic range including negative values and suppressing dispersion to display a spectrum that properly represents optical properties of the measuring object.