A portable Raman spectrometer is a portable analytical device used for rapid, accurate, and non-destructive analysis of substance composition. It obtains molecular structure information by detecting the Raman scattering light generated by the interaction between laser and substance. Its core advantages lie in its easy operation, effective measurement, and no need for complex sample pretreatment, making it suitable for various on-site testing scenarios.
When a monochromatic light with a frequency of v0 is irradiated onto the sample, most of the light undergoes Rayleigh scattering with the same frequency as the incident light; Light that accounts for approximately 10-6-10-10% of the total scattered light intensity undergoes Raman scattering, with a frequency different from the incident light. The frequency reduction in Raman scattering is called Stokes scattering, and the frequency increase is called anti Stokes scattering. Most of the measurements are usually based on Stokes scattering. The frequency difference v between scattered light and incident light is called Raman shift, which is only related to the structure of the scattering molecule itself. Different chemical bonds or functional groups have characteristic Raman shifts, which are the basis for qualitative analysis of molecular structure using Raman spectroscopy.
Features:
Portability and flexibility
The device is compact in size and lightweight (some models weigh less than 2kg), supporting handheld or backpack carrying, and can adapt to various scenarios such as the wild, production lines, and laboratories.
Combination of Microscopic Imaging and Raman Spectroscopy
By designing a confocal optical path or a telephoto microscope objective, micrometer level spot focusing can be achieved, enabling high-resolution imaging and Raman spectroscopy acquisition of sample surfaces, supporting point, line, area scanning imaging and 3D imaging.
Multi wavelength laser excitation
Equipped with adjustable laser sources (such as 532nm, 785nm, 1064nm, etc.), the excitation wavelength can be selected according to the characteristics of the sample, effectively suppressing fluorescence interference and improving signal-to-noise ratio.
Intelligent operation and data analysis
Built in high-sensitivity CCD or CMOS detector, combined with dedicated software to achieve spectral acquisition, data processing, database comparison, and automatic recognition functions. Some models support the Android system, equipped with high-definition screens and cameras, which can record the inspection site and generate reports.