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Multichannel high-response optical filter spectrometer

A band-pass filter and filter technology, applied in the field of spectrometer, can solve the problems of high spectral signal response speed, small signal, wide range of wavelength selection, etc., and achieve high sampling frequency, high signal-to-noise ratio, high sampling wide range of effects

Inactive Publication Date: 2013-03-06
INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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Problems solved by technology

The advantage is that the wavelength can be selected in a wide range and the spectral signal response speed is high; the disadvantage is that the signal obtained by a single channel after the fiber is divided is small, and it is limited to further increase the sampling speed
[0005] To sum up, at present, it is difficult to balance the spatial measurement range and measurement frequency for simultaneous rapid analysis of multiple characteristic spectral lines.

Method used

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  • Multichannel high-response optical filter spectrometer

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Embodiment Construction

[0018] Such as figure 1 shown. A multi-channel high-response filter spectrometer, including a closed casing, one side wall of the casing is provided with a light emitting device and a plurality of light receiving devices in sequence from bottom to top, and the other side wall of the casing is arranged from bottom to top. There are a plurality of light receiving devices in sequence. The light emitting device is composed of an optical fiber that couples the incident light, a focusing lens that is sequentially placed at the optical fiber outlet, and a first-stage relay lens. In the light emitting device, the optical fiber outlet is located at the focus of the focusing lens. , the optical fiber output light is transformed into parallel light by the focusing lens and emitted to the first-stage relay lens; the light receiving device is composed of a photodetector, a band-pass filter placed at the light entrance of the photodetector in turn, and a relay lens. Between the band-pass f...

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Abstract

The invention discloses a multichannel high-response optical filter spectrometer. The multichannel high-response optical filter spectrometer comprises a closed shell, the sidewall at one side of the shell is orderly provided with a light emitting device and multiple light receiving devices from bottom to top, and the sidewall at the other side of the shell is orderly provided with multiple light receiving devices from bottom to top, and each channel is provided with corresponding optical filters and relay lenses. The multichannel high-response optical filter spectrometer can realize a function of simultaneously sampling multiple spectral lines at high frequency in optical signals, and has the advantage of being high in signal-to-noise ratio, high in sampling frequency and wide in sampling range.

Description

technical field [0001] The invention relates to the field of spectrometers, in particular to a multi-channel high-response filter spectrometer. Background technique [0002] Spectral analysis is an elemental analysis method commonly used in the fields of physics, chemistry, and biomedicine. Substances of various structures have their own characteristic spectra. Spectral analysis is to use characteristic spectra to study the structure of substances or determine their chemical composition. In general, the research object contains a variety of characteristic spectral lines, and many scientific experiments need to understand the internal mechanism of physical or chemical processes by studying their rapidly changing processes. Such as impurity radiation in the plasma, neutron radiation, X-rays, etc. Therefore, it is of great significance in scientific research to analyze the intensity of characteristic spectral lines above megahertz. [0003] At present, the intensity analysi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): G01N21/31G01J3/28
Inventor 臧庆陈慧赵君煜
Owner INST OF PLASMA PHYSICS CHINESE ACAD OF SCI
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