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Method and device for online detection of biomass basic characteristics based on near infrared spectroscopy

A technology of near-infrared spectroscopy and near-infrared spectrometer, which is applied in the direction of measuring devices, material analysis through optical means, instruments, etc., can solve the problems of staying and so on, achieve the effect of liberating labor force, saving huge investment, and high detection accuracy

Inactive Publication Date: 2014-10-22
CHINA AGRI UNIV
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Problems solved by technology

Relevant studies have shown that near-infrared spectroscopy can effectively predict the basic properties of biomass, such as moisture, ash, volatile matter, fixed carbon, cellulose, hemicellulose, lignin, crude protein, soluble sugar, and calorific value. However, the existing research is still in the stage of laboratory research

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  • Method and device for online detection of biomass basic characteristics based on near infrared spectroscopy
  • Method and device for online detection of biomass basic characteristics based on near infrared spectroscopy
  • Method and device for online detection of biomass basic characteristics based on near infrared spectroscopy

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Embodiment Construction

[0039] The experimental methods used in the following examples are conventional methods unless otherwise specified.

[0040] The materials and reagents used in the following examples can be obtained from commercial sources unless otherwise specified.

[0041] The present invention takes the near-infrared spectrum online prediction of the soluble sugar content of corn stalks as an example to illustrate the detection method of the present invention.

[0042] The structural representation of the detection device adopted in the detection method of the present invention is as follows: figure 2 As shown, it includes a spectrum acquisition system and a computer 1 , wherein the spectrum acquisition system includes a near-infrared spectrometer, a conveyor belt 7 , a conveyor belt bracket 10 and a detection probe bracket 4 . The conveyor belt 7 is located on the conveyor belt support 10, powered by the conveyor belt motor 9, and regulated by the conveyor belt speed regulator 8. The det...

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Abstract

The invention discloses a method and a device for online detection of biomass basic characteristics based on near infrared spectroscopy. The online detection method comprises the following steps: acquiring the near infrared spectrums of at least 50 biomass samples; measuring the basic characteristics of the biomass samples by use of a physical-chemical method, thereby obtaining the values of various basic characteristics; next, establishing a correction model between the near infrared spectrum signals of the biomass samples and the basic characteristics by use of a least square method; performing spectrum scanning on the biomass to be tested and acquiring the near infrared spectrum of the biomass to be tested; inputting the obtained near infrared spectrum signal into the correction model between the near infrared spectrum signals and the basic characteristics, thereby obtaining the basic characteristics of the tested biomass. The online detection method has the advantages of high detection accuracy, good result consistency and high automation degree as the optical detection method based on the near infrared spectrum is applied to the detection process of the biomass basic characteristics; besides, the online detection method has excellent practicability and economical efficiency and creates conditions for efficient comprehensive large-scale utilization of the biomass.

Description

technical field [0001] The invention relates to an online detection method and device for basic characteristics of biomass, in particular to an online detection method and device for basic characteristics of biomass based on near-infrared spectroscopy technology. Background technique [0002] Biomass reserves are large and widely distributed. It is the fourth largest energy after coal, oil, and natural gas. It is also a safe, renewable, and zero-pollution clean energy. Through chemical, physical and biological transformation methods, the comprehensive and efficient utilization of biomass energy, feed, base material, material and fertilizer can be realized. In the process of comprehensive utilization of biomass, the detection of its basic characteristics is essential. Traditional laboratory chemical detection methods are time-consuming and labor-intensive, and the most important thing is that they cannot achieve online detection, which is far from meeting the needs of rapid ...

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Application Information

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IPC IPC(8): G01N21/359
Inventor 杨增玲薛俊杰韩鲁佳陈龙健黄光群刘贤孙琦
Owner CHINA AGRI UNIV
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