Tunable laser spectrum secondary harmonic intelligent analyzing method and implementing equipment

A second harmonic and intelligent analysis technology, which is applied in the direction of material analysis, material analysis, and measuring devices through optical means, can solve problems such as small size, sampling error, and inability to produce instruments, and achieve simplified operation process and low scattering loss Small, accurate reading effect

CN1467487AInactive Publication Date: 2004-01-14ANHUI INST OF OPTICS & FINE MECHANICS - CHINESE ACAD OF SCI
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Publication Date
2004-01-14
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to tunable semiconductor laser spectrum secondary harmonic linearisation multiple components intelligent analyzing method and apparatus for realizing the same. which is based on the PC bus line visual equipment technology, wherein the intelligent heuristic search, pattern recognition and matching, self-establishing fundamental wave and modulating wave are introduced into the software and hardware, thus achieving the purpose of good mobility, high precision and stability .
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Description

technical field

[0001] Laser spectroscopy. Background technique

[0002] It is a worldwide trend that the population is concentrating in cities. Our country with a large population has also accelerated the process of urbanization. The green environment of urban construction has become an important symbol. However, according to statistics, 80% of urban air pollution comes from motor vehicle exhaust. Pollutants have the characteristics of high toxicity, low content, multi-component, and persistence. However, it is still difficult to perform real-time dynamic multi-component telemetry at present, and it remains in the state of simulated dynamic measurement. The use of laser spectroscopy to analyze pollutants not only concentrates light energy, but also has strong selectivity for spectral absorption through different components, so it is an effective technical approach.

[0003] Laser spectral analysis includes differential absorption spectroscopic analysis based on the optical...

Examples

Embodiment Construction

[0052] Referring to the accompanying drawings, wherein 1, computer, 2, PCI bus, 3, control signal, 4, modulation module, 5, detector, 6, tunable light source, 7, photoelectric acquisition device, 8, graphical user interface software, 9, Secondary frequency wave analysis software. 10. Control software and others, 11. Laser control module, 12. Level converter, 13. Logic control circuit, 14. A / D converter, 15. Data isolation circuit, 16. Data memory, 17. Address generator , 18. Address allocator, 19. Hardware self-test, 20. Success, 21. Waveform script syntax check, 22. Pass, 23. Control parameter storage and preview and modulation waveform function analysis, 24. Parameter legality check, 25. pass? 26. Write all the data into the RAM of the hardware module. 27. Generate an error report to notify the user. 28. Start the fast digital / analog conversion of the hardware module to generate the modulation waveform according to the set hardware clock scanning frequency. 29. The user per...