Product Overview
The resolution of a micro Fourier spectrometer depends on the scanning range of the interference signal. The larger the scanning range, the higher the resolution, and the resolution can be dynamically adjusted according to actual needs.
Near infrared spectroscopy corresponds to the vibrational and rotational absorption of compound molecules, carrying rich information on the composition of substances, and is an important means of rapid component detection. The grating spectrometer is limited by the response wavelength of the line detector, and the spectral detection range is mostly 900-1700nm. Line sensors with response bands up to 2500nm are expensive and their performance is not ideal. The Fourier spectrometer collects incident light interference signals through precise optical path design and obtains spectral information of the incident light through Fourier transform. It has the following characteristics:
1. By using a single point detector, there is no need for a linear or planar array, making it easy to expand the spectral scanning range.
2. There is no need to pass the incident light through a slit like a grating spectrometer, as it has a high light flux and sensitivity.
3. The resolution depends on the scanning range of the interference signal. The larger the scanning range, the higher the resolution, and the resolution can be dynamically adjusted according to actual needs.
Giant Technology Micro Fourier Spectrometer
Traditional desktop Fourier spectrometers are expensive, with complex optical systems, large volumes, long spectral scanning times, and high maintenance costs. With the increasing demand for new applications that require key indicators such as size, weight, power consumption, and detection speed, especially the demand for online component detection in various industries, the development of miniaturized, low-power, and low-cost technologies has become a trend. Giant Technology adopts MEMS technology to implement Fourier spectral scanning chips and develops precision optical systems that match them. They have launched the SF2500 micro Fourier spectrometer, which is expected to bring breakthroughs to industry applications.
Fourier Spectral Scanning Chip (Local)
The SF2500 micro Fourier spectrometer is based on self-developed MEMS chips and optical interference modules, and has excellent performance. The detection band is 900-2500nm, with a typical resolution of 25cm-1. The measurement speed is 150-200 times per second, and the signal-to-noise ratio of a single measurement (<10ms) can reach 6000:1. It can be used for online component detection and can also be averaged multiple times. Within 0.5 seconds, tens of thousands of detection signal-to-noise ratios can be obtained. In contrast, a certain imported product of the same type has a detection band of 1350-2550nm, a resolution of 66.6cm-1, and 0.5="">
Comparison of Spectral Curves between SF2500 (Blue) and Traditional Desktop Spectrometer (Red)
The SF2500 micro Fourier spectrometer uses fiber optic input for the light signal to be measured, and outputs spectral data through Ethernet for remote transmission and device networking. It is equipped with spectral acquisition software and modeling software, supports SDK development, is easy to integrate, and is compatible with various detection accessories such as Giant Technology's fiber optic multiplexer.
Juge Technology is committed to the development of optoelectronic instruments, and has made many breakthroughs in miniaturization technology for spectrometers. It has rich experience in the application of spectrometers, including spectral modeling and scheme implementation. The online detection of ore composition and fabric sorting schemes that have been implemented have received praise from industry customers. The launch of SF2500 will further expand the industry application scope of spectroscopic technology.
Micro Fourier Spectrometer:
Spectral parameters
spectral range
4000cm-1~11111cm-1 (900~2500nm)
Spectral method
Fourier transform
spectral resolution
25cm-1（ 7nm@1700nm ）
Wavelength accuracy
±0.5nm
signal-to-noise ratio
2500 (single measurement, low gain)
ADC bit depth
16bit
sampling rate
150Hz
interface parameters
Optical interface
SMA905
power interface
DC12V
Data transmission method
Ethernet
data interface
RJ45