A Method for Simultaneously Measuring Light Intensity and Light Quality Using a Spectrometer

A spectrometer and light quality technology, which is applied in the field of measuring light intensity and light quality, can solve the problems of not being able to measure light intensity and light quality simultaneously, not being able to directly measure light intensity, and not being able to measure spectral components. fast effect

Active Publication Date: 2017-05-03
INST OF BOTANY CHINESE ACAD OF SCI
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Problems solved by technology

Therefore, the standardized optical quantum meter cannot measure the spectral composition and it has no ability to measure the blue-violet light below 400nm and the far-red light above 700nm, but the spectrometer cannot directly measure the light intensity and the data measured by the uncalibrated spectrometer are relative energy values. None of them can simultaneously measure light intensity and light quality

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  • A Method for Simultaneously Measuring Light Intensity and Light Quality Using a Spectrometer
  • A Method for Simultaneously Measuring Light Intensity and Light Quality Using a Spectrometer
  • A Method for Simultaneously Measuring Light Intensity and Light Quality Using a Spectrometer

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[0025] The present invention will be described in detail below in conjunction with the accompanying drawings. However, it should be understood that the accompanying drawings are provided only for better understanding of the present invention, and they should not be construed as limiting the present invention.

[0026] The method for synchronously measuring light intensity and light quality with a spectrometer provided by the invention comprises the following steps:

[0027] 1. Select a spectrometer, and based on the measured parameters of the selected spectrometer, establish an empirical conversion model between light energy value and light quantum flux density;

[0028] The spectrometer selected in the embodiment of the present invention is a portable fiber optic spectrometer produced by Holland Avantes company. The model of this portable fiber optic spectrometer is: AvaSpec-ULS2048×64. The number of times is 2, and the detector quantum efficiency of the spectrometer is Q E...

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Abstract

The invention relates to a method using a spectrometer to synchronically measure light intensity and light quality; the method comprises the following steps: selecting the spectrometer, and setting up a light energy value-light quantum flux density experience conversion model according to measure parameters of the selected spectrometer; using four LED light sources of different wavelength to combine with a standard light quantum meter so as to calibrate obtained spectrums, thus obtaining values of parameters k and C of the experience conversion module; using the selected spectrometer to synchronically measure and calculate so as to obtain the light intensity and light quality according to the obtained k and C value, and the light energy value-light quantum flux density experience conversion model, i.e., using the selected spectrometer to measure and calculate the light quantum flux density of any light source and light environment. The method is simple in operation, fast in calibration, reliable in measuring, suitable for promotion and application, thus having wide application prospect in the plant physiology, botany and ecology research fields.

Description

technical field [0001] The invention relates to a method for measuring light intensity and light quality, in particular to a method for synchronously measuring light intensity and light quality by using a spectrometer. Background technique [0002] The influence of light intensity and light quality on plants has been highly concerned in research fields such as botany and ecology. From molecular to individual levels, plants respond and adapt to changing light intensity and light quality environments. These processes are one of the important internal driving forces for photosynthesis of green organs, individual growth, species renewal coexistence, and plant community succession. There are many studies on the effect of light intensity and quality on photosynthesis and plant growth. Taking light intensity as an example, strong light will lead to photoinhibition of plant photosynthetic organs, thereby inhibiting the carbon accumulation and individual growth of plants; weak light...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
Inventor 樊大勇付增娟徐文婷谢宗强
Owner INST OF BOTANY CHINESE ACAD OF SCI
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