A multi-channel spectral measurement device and method based on multiplexing technology

A spectrum measurement and multiplexing technology, which is applied in spectrum investigation and other fields, can solve the problems of unfavorable observation system automation and poor data synchronization, and achieve the effect of ensuring data synchronization, reducing errors and reducing labor costs

Active Publication Date: 2017-05-24
WUHAN UNIV
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Problems solved by technology

At present, when some domestic scientific researchers are collecting spectra, due to limited spectrometer equipment, they can only collect different spectral values ​​by changing different optical fiber probes in actual operation, which leads to poorer data synchronization and is not conducive to the entire observation system. automation
[0003] Therefore, it is necessary to design a device that can conveniently realize synchronous acquisition of multiple fiber optic probes to solve the existing technical problems of poor data synchronization

Method used

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  • A multi-channel spectral measurement device and method based on multiplexing technology
  • A multi-channel spectral measurement device and method based on multiplexing technology
  • A multi-channel spectral measurement device and method based on multiplexing technology

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Embodiment Construction

[0018] In order to facilitate those of ordinary skill in the art to understand and implement the present invention, the present invention will be described in further detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the implementation examples described here are only used to illustrate and explain the present invention, and are not intended to limit this invention.

[0019] The spectrometer in the present invention can be various existing spectrometers that are acceptable in the practice of spectral observation, such as SVC spectrometer, HR2000 spectrometer or MAYA2000pro spectrometer. The fiber optic probe can be various fiber optic probes acceptable in the practice of spectral observation, usually including two types of radiance fiber optic probe and irradiance fiber optic probe.

[0020] please see figure 1 , figure 2 , image 3 and Figure 4 , figure 1 is a schematic diagram of the overall structure of an embodi...

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Abstract

The invention discloses a multichannel spectral measurement device and method based on the multiplexing technology, and the device comprises an optical path change-over switch array, a probe group, and a spectrometer, wherein the probe group and the spectrometer are connected through the optical path change-over switch array. The probe group consists of N fiber probes, and the optical path change-over switch array is formed by the parallel connection of N identical optical path switch units, wherein N is an integer greater than or equal to two. The N fiber probes are connected with the spectrometer through the N identical optical path switch units. Only one spectrometer is enough for the observation of spectroscopic data collected by the N fiber probes, and there is no need to manually replace the fiber probes for the observation of different targets or no need to use a plurality of spectrometers to achieve the multichannel spectral measurement, thereby greatly reducing the labor cost and the cost of spectrometers. More importantly, the device can guarantee the data synchronization among a plurality of channels in a process of spectral observation, and reduces the errors caused by human factors.

Description

technical field [0001] The invention belongs to the technical field of spectrum measurement, and in particular relates to a multi-channel spectrum measurement device and method based on multiplexing technology. Background technique [0002] The spectrometer is an important instrument and equipment for measuring the apparent optical parameters of ground objects. It is widely used in the observation of on-site apparent spectra, especially in water color remote sensing. Performance. At present, when some domestic scientific researchers are collecting spectra, due to limited spectrometer equipment, they can only collect different spectral values ​​by changing different optical fiber probes in actual operation, which leads to poorer data synchronization and is not conducive to the entire observation system. automation. [0003] Therefore, it is necessary to design a device that can conveniently realize synchronous acquisition of multiple optical fiber probes, so as to solve the...

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G01J3/28
Inventor 田礼乔陈晓玲黄锐
Owner WUHAN UNIV
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