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tdlas architecture for widely spaced wavelengths

A wide-spaced, wavelength-based technology for TDLAS architectures for wide-spaced wavelengths

Active Publication Date: 2019-10-25
正点技术有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

However, further extension to about 2.33 microns for sensitive CO detection and for measuring O 2 needs require a completely different architecture

Method used

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  • tdlas architecture for widely spaced wavelengths
  • tdlas architecture for widely spaced wavelengths
  • tdlas architecture for widely spaced wavelengths

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Embodiment Construction

[0025] While aspects and features of certain implementations have been summarized above, the detailed description shows some implementations in more detail to enable those skilled in the art to practice such implementations. The described examples are provided for illustrative purposes and are not intended to limit the scope of the invention.

[0026] In the following description, for purposes of explanation, numerous specific details are set forth in order to provide a thorough understanding of the described embodiments. It will be apparent, however, to one skilled in the art that other embodiments of the invention may be practiced without some of these specific details. Several embodiments are described herein, and while features are given to different embodiments, it should be understood that features described with respect to one embodiment may also be combined with other embodiments. However, by the same token, no single feature or features of any described embodiment sh...

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Abstract

A system for widely spaced wavelength tunable diode laser absorption spectroscopy, the system comprising: at least a first tunable diode laser and a second tunable diode laser generating laser light at a first wavelength and a second wavelength, wherein , the laser light at the first wavelength and the laser light at the second wavelength cannot efficiently co-propagate on the same single-mode fiber. The first optical fiber may be configured to transmit light at a first wavelength and the second optical fiber configured to transmit light at a second wavelength. An optical fiber bundle may be formed from the distal ends of the first and second optical fibers stripped of their respective coatings and arranged with their claddings adjacent to each other. One or more projection heads are configured to project respective laser beams from the fiber optic bundle across the measurement region. One or more capture heads located on the other side of the measurement region receive the respective light beams and direct the respective light beams onto at least one sensor.

Description

[0001] Copyright Notice [0002] Portions of the disclosure of this patent document contain material that is protected by copyright. The copyright owner has no objection to the facsimile reproduction by anyone of the patent disclosure or patent document as shown in the Patent and Trademark Office patent files and records, but otherwise reserves all copyrights. Background technique [0003] Tunable diode laser absorption spectroscopy (TDLAS) is a well-established technique for detecting and measuring the concentration of various species in gaseous mixtures. TDLAS relies on the unique absorption spectrum of the targeted substance to measure the attenuation of a diode laser beam at a very specific wavelength, which is tuned about the absorption line of the substance being measured as it passes through the measurement region. There is essentially no absorption even at wavelengths slightly different from these absorption lines. [0004] Typically, in operation, the wavelength of ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02B6/00
CPCG02B6/3598G02B6/3624G02B6/3672G02B6/40G02B6/4292G01N2201/0833F23N5/00G01N21/39F23N5/003F23N2900/05001F23N2900/05002G01N21/3151G01N2021/3148G01N2021/399G01N2201/0826F23N2225/00G01J3/42G02B6/04B01D53/30
Inventor 安德鲁·D·萨佩贝纳德·帕特里克·马斯特森
Owner 正点技术有限公司