Hybrid spectrometer with charge coupled device (CCD) spectral signal

Abstract

The invention provides a hybrid spectrometer with a charge coupled device (CCD) spectral signal. The hybrid spectrometer comprises a plurality of CCD modules, an interface module, a control module, a photoelectric multiplying tube and an upper computer, wherein the photoelectric multiplying tube is connected with the control module; and the CCD modules are respectively connected with the interface module, the control module and the upper computer sequentially. The hybrid spectrometer has the advantages that the CCD modules are controlled by independent central processing units (CPUs); data and corresponding algorithms can be independently configured; the calculation speed is high, and the algorithms are flexible; and the accuracy and the stability of acquired data are effectively improved. The spectral signal is processed and converted at a front end, so that interference coupling is reduced; and the completeness of the signal is high. The interface module is easy to network and convenient to maintain and debug. The control module seamlessly connects the data acquired by CCDs and the data acquired by the photoelectric multiplying tube; the obtained data are uniformly arranged; the channel data are not distinguished; and analysis software of the upper component is not required to be changed.

Description

technical field [0001] The invention relates to the field of spectrum technology, in particular to a hybrid spectrometer with a CCD spectrum signal acquisition system. Background technique [0002] Spectrometers are divided into photomultiplier tube spectrometers and CCD spectrometers. Photomultiplier tubes can accurately analyze ultra-low content elements, but their volume is large, and the number of installations is limited by space; CCD spectrometers can perform full-spectrum analysis, but their detection limit is not as good as that of photomultiplier tubes. Traditional spectral analysis instruments are pure photomultiplier tubes or CCD spectrometers, and their costs are relatively high. [0003] In addition, the CCD spectral signal acquisition system of the current CCD spectrometer is controlled by a single CPU (FPGA, DSP) to collect data and centrally process the CCD. The calculation speed is slow, and the CCD parameters cannot be freely configured. The flexibility is...

AI Technical Summary

Problems solved by technology

The photomultiplier tube can accurately analyze ultra-low content elements, but its volume is large, and the number of installations is limited by space; CCD spectrometers can do full-spectrum analysis, but their detection limit is not as good as that of photomultiplier tubes

Traditional spectral analysis instruments are pure photomultiplier tubes or CCD spectrometers, and their costs are relatively high

[0003] In addition, the CCD spectral signal acquisition system of the current CCD spectrometer is controlled by a single CPU (FPGA, DSP) to collect data from the CCD and process it centrally. The calculation speed is slow, and the parameters of the CCD cannot be freely configured. Only a section of wire transmission can be processed by the CPU, the signal integrity is poor, and it is susceptible to external interference

[0004] There is no high-end spectrometer with high comprehensive performance

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