A multi-parameter integrated oil sensor based on infrared laser technology

Abstract

The invention relates to an infrared laser technology based multi-parameter integrated oil sensor, which comprises a light path modulation unit, a photoelectric signal conversion unit and a signal processing module, and is characterized in that the light path modulation unit adopts a tunable semiconductor laser to modulate infrared light with different wavelength ranges, and the modulated infrared light is respectively applied to temperature measurement, particle detection and infrared spectrum analysis through a first beam splitter and a second beam splitter; the photoelectric signal conversion unit converts infrared temperature measurement signals into electric signals through a photoelectric detector, particle projection signals are converted into electric signals through a photoelectric receiving tube, and interference light signals are converted into infrared spectrum information through a detector; the signal processing module carries out amplification conditioning on micro electric signals by utilizing an amplifying circuit, the material content is determined through infrared spectrum comparative analysis, parameter data of oil is integrated, logic verification is carried out by applying a convergence algorithm, and finally digital signals are outputted. Simultaneous online measurement for multiple oil parameters is realized through a single sensor structure by only adopting the infrared laser technology.

Description

technical field [0001] The invention relates to a multi-parameter integrated oil sensor based on infrared laser technology, belonging to the technical field of oil online diagnosis. Background technique [0002] As a fast, efficient and environment-friendly analysis technique, the application of near-infrared analysis method in petrochemical industry has attracted more and more attention. For a test sample, the use of near-infrared analysis methods to simultaneously measure multiple properties is more conducive to the use of near-infrared analysis methods. [0003] Viscosity index is an important parameter to characterize the viscosity-temperature performance of lubricating oil, and it is also one of the important quality indicators in API classification. The establishment of a rapid analysis method for viscosity index of base oil is of great significance to the production process control of lubricating base oil and the development and deployment of lubricating oil. importa...

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Problems solved by technology

The existence of water will promote the oxidation and deterioration of oil products, destroy the formation of oil film, make the lubrication effect worse, cause corrosion and rust of equipment, make oil products easy to produce sediment, and cause hydrolysis reaction of additives (especially metal salts) If it fails, it will produce sediment, block the oil circuit, and hinder the circulation and supply of lubricating oil.

Not only that, when the operating temperature is low, the moisture in the lubricating oil will deteriorate the fluidity of the lubricating oil and the viscosity-temperature property due to being close to the freezing point; and when the operating temperature is high, the water will vaporize, which not only destroys the oil film but also produces air resistance, affecting oil circulation

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