Integrated miniature spectrometer

A micro-spectrometer and spectrum technology, which is applied in the field of analytical instruments, can solve the problems that have not yet been reported on micro-spectrometers, inconvenient low-light detection, poor repeatability, etc.

Inactive Publication Date: 2003-01-01
温志渝 +1
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Problems solved by technology

For example, the finger-up spectrometer of Steag Microparts in Germany uses a concave grating as a spectroscopic element. However, due to the small longitudinal section of the grating, the light energy utilization rate is low, it is not convenient for weak light detection, and the processing is difficult.
Another example is the handheld fiber optic spectrometer of Oc

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Embodiment Construction

[0009] The technical solution of the present invention will be further described below in conjunction with the accompanying drawings.

[0010] The working principle of the integrated micro-spectrometer provided by the present invention is: after the light to be measured enters the micro-spectrometer through the incident optical fiber (2), it passes through the concave grating (1) for spectral imaging, and then the spectral image is transformed by the plane mirror (3). The surface is projected onto the photoelectric detection array (5), and the measured spectral signal is converted into a corresponding spectral electrical signal by the photoelectric detection array (5), and the spectral electrical signal is read out by the signal reading circuit, and then converted by A / D Spectral signal processing circuit and analysis software complete the acquisition, processing and analysis of spectral signals.

[0011] The present invention fundamentally solves key technologies such as mini...

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Abstract

The integrated miniature spectrometer consists of two parts of beam splitting and imaging one and spectral signal acquiring and processing one, the beam splitting and imaging part consists of incident fiber, concave grating, planar reflector, base, upper casing and other elements and devices; while the spectral signal acquiring and processing part consists of photoelectronic detector array, spectral signal read-out circuit, A/D converter circuit, spectral signal processing circuit and analysis software. The present invention integrates incident fiber, concave grating, planar reflector, photoelectronic detector array, etc. and may be used widely in on-line real-time detection and analysis of scientific experiment, biochemical analysis, environment monitoring and other fields.

Description

Technical field [0001] The invention belongs to the technical field of analytical instruments, in particular to an integrated miniature spectrum analyzer. Background technique [0002] In the prior art, corresponding products of micro-spectrometers have come out abroad. There are still some defects and deficiencies in the application. For example, the finger-up spectrometer of Steag Microparts in Germany uses a concave grating as a spectroscopic element. However, due to the small longitudinal section of the grating, the light energy utilization rate is low, it is not convenient for weak light detection, and it is difficult to process. Another example is the handheld fiber optic spectrometer of Ocean Optic Company in the United States. It uses more optical components and has a more complicated structure, and has not fundamentally changed the structure of the traditional spectrometer. In addition, there are still great difficulties in installation and debugging, and the repe...

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Application Information

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IPC IPC(8): G01J3/42
CPCG01J3/0256
Inventor 温志渝陈刚温中泉邬敏贤
Owner 温志渝
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