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Full-spectrum transmission plant biochemical parameter nondestructive detection device and method

A transmission-type, full-spectrum technology, applied in the field of spectral detection of plant leaf biochemical parameters, can solve the problems of low model applicability, poor anti-interference ability, and few detection parameters, so as to improve sensitivity, increase stability, and improve The effect of measurement accuracy

Inactive Publication Date: 2010-10-06
BEIHANG UNIV
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Problems solved by technology

[0005] In view of this, the main purpose of the present invention is to provide a full-spectrum transmission non-destructive detection method and device for plant biochemical parameters, which is used to solve the problems of low model applicability, poor anti-interference ability and low detection accuracy in current spectral non-destructive detection methods. And technical problems such as fewer detection parameters

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  • Full-spectrum transmission plant biochemical parameter nondestructive detection device and method
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  • Full-spectrum transmission plant biochemical parameter nondestructive detection device and method

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Embodiment Construction

[0050] In order to make the object, technical solution and advantages of the present invention clearer, the present invention will be further described in detail by citing the following embodiments and referring to the accompanying drawings.

[0051] figure 1 It is a logical structure diagram of the device for non-destructive detection of leaf biochemical parameters of the present invention, the device includes: a sampling module, a spectrometer module, a processing module, and a control module;

[0052] (1) The sampling module is used under the control of the control module to obtain optical signals for spectrum measurement by means of contact transmission sampling, and transmit the optical signals obtained by sampling to the spectrometer module.

[0053] In a preferred embodiment of the present invention, the sampling module passes such as figure 2 The integrated contact blade fixture shown in the figure is realized. The blade fixture is divided into upper and lower parts....

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Abstract

The invention discloses a full-spectrum transmission plant biochemical parameter nondestructive detection device and a full-spectrum transmission plant biochemical parameter nondestructive detection method, which are used for solving the technical problems of low model applicability, poor anti-jamming capacity, low detection accuracy, less detected parameters and the like in the conventional spectrum nondestructive detection method. The full-spectrum transmission measurement principle is adopted and a plurality of parameters are simultaneously measured in high accuracy; the time-divided double optical path reference measurement principle is adopted to ensure the accuracy of transmittance spectrum signals; the integrated transmission fixture and program controlled adjustable voltage-stabilizing drive light source circuit makes the measurement principle realized in plant leaf transmittance spectrum measurement so as to form the miniature and portable plant biochemical parameter nondestructive detection device; and in a prediction model of the device, an improved expansion multiple scattering correction method is adopted to correct basic lines of leaves due to scattering and optical path length difference due to different leaf thicknesses, the sensitivity of spectrum data to chemical substance concentration is improved, and the anti-jamming capacity of the model is improved.

Description

technical field [0001] The invention relates to a spectrum detection technology of plant leaf biochemical parameters, in particular to a device and method for full-spectrum transmission non-destructive detection of plant biochemical parameters. Background technique [0002] The non-destructive testing of biochemical parameters of plant leaves mainly refers to the content testing of photosynthetic pigments (chlorophyll, carotene, etc.), water, nitrogen and various nutritional elements of leaves. For a long time, people have expected to precisely control the growth process of plants to meet the needs of the development of precision agriculture. The current deterioration of the living environment makes this demand more urgent. The traditional chemical detection method requires a series of processing of the sample to be tested, which is not only time-consuming, labor-intensive, but also not real-time. [0003] Visible-near-infrared spectroscopy detection technology does not req...

Claims

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Application Information

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IPC IPC(8): G01N21/27
Inventor 张广军李庆波张倩暄黄彦文
Owner BEIHANG UNIV
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