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Qingdao Sennari Precision Instrument Co., Ltd
Components and functions of handheld spectrometer
Date: 2025-09-14Read: 1
Handheld spectrometer is a portable, fast, and accurate spectral analysis instrument. It obtains information about the composition of a sample by measuring its reflectance, transmittance, or fluorescence spectrum. The basic working principle of a spectrometer is to irradiate the sample with light emitted by a light source, which absorbs or reflects a portion of the light and interacts with the light source in a specific way. Different substances have different characteristics such as absorption, scattering, reflection, and transmission of light, resulting in different spectral signals. The spectrometer measures the intensity of light at different wavelengths to obtain spectral characteristic information of the sample.
SPECTRO iSORTPart of the composition:
1. Light source: The light source provides excitation light, usually choosing a suitable wavelength range, such as ultraviolet light, visible light, infrared light, etc., and selecting the appropriate light source according to the analysis needs.
2. Optical system: The optical system includes lenses, mirrors, optical fibers, etc., which are responsible for guiding the light emitted by the light source onto the sample and guiding the light reflected or transmitted from the sample into the spectral detector.
3. Spectral splitter: A spectral splitter decomposes optical signals into multiple different wavelength components using devices such as prisms and gratings.
4. Detector: The detector is used to receive optical signals of different wavelengths that have been decomposed by a spectral splitter, and convert the optical signals into electrical signals for processing. Common detectors include photodiodes, CCD detectors, etc.
5. Display and Analysis Module: Typically equipped with a display screen and user interface, it displays analysis results in real-time and processes and analyzes data through built-in software. Some devices can also be connected to external devices for more complex data analysis.
The main features of a handheld spectrometer are:
1. Strong portability: With a compact design and light weight, it can be easily carried to the site for real-time analysis, suitable for various outdoor, production line, laboratory and other environments.
2. Easy to operate: Most of them have a simple and easy-to-use interface, and users only need to select the measurement mode through the touch screen or buttons to conduct sample testing, and even complete basic analysis without professional background.
3. High real-time performance: Measurement results can be obtained within seconds, achieving real-time data feedback, especially suitable for situations that require quick decision-making.
4. Multiple measurement methods: It usually supports multiple measurement modes, such as reflection mode, transmission mode, fluorescence mode, etc. The appropriate measurement method can be selected according to the sample type and requirements.
5. Non destructive analysis: Using non-contact measurement methods, the sample will not be damaged during the analysis process, making it suitable for analyzing valuable or irreplaceable samples.
6. High precision analysis: Despite being a portable device, it can still provide relatively high-precision spectral data and perform well in qualitative and quantitative analysis of various substances.