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	Method and apparatus for two point calibration of a tunable diode laser analyzer
	COWIE, ALAN; ZHU, JIE
	2013-12-27
著作权人	YOKOGAWA CORPORATION OF AMERICA
专利号	WO2013191728A1
国家	世界知识产权组织
文献子类	发明申请
其他题名	Method and apparatus for two point calibration of a tunable diode laser analyzer
英文摘要	A method for two point calibration of a tunable diode laser (TDL) spectrometer for the specific wavelength of light from the TDL v. the specific current fed to the TDL, for the slope of wavelength of light from the TDL v. the current fed to the TDL, to correct for any drifting of the wavelength of light from the TDL v. the specific current fed to the TDL and for any drifting of the slope of wavelength of light from the TDL v. the current fed to the TDL as the TDL ages and/or as the temperature of the TDL varies, characterized by the steps of: (a) directing a first portion of the light from the TDL through a known gas to a first light detector as the current fed to the TDL is varied so that current values are determined for at least two known absorption peaks of the known gas; (b) while concurrently directing a second portion of the light from the TDL through a gas to be analyzed to a second light detector. In addition, a laser module for use in a TDL analyzer, the module defining a cavity therein across which cavity a portion of the light from a TDL is directed to collimation optics for collimating the light from the module, characterized by a gas reference cell positioned at least partially in the cavity so that a portion of the light from the TDL that is not directed to the collimation optics is shown through a gas in the gas reference cell to a light detector.
公开日期	2013-12-27
申请日期	2013-06-17
状态	未确认
内容类型	专利
源URL	[http://ir.opt.ac.cn/handle/181661/58866]
专题	半导体激光器专利数据库
作者单位	YOKOGAWA CORPORATION OF AMERICA
推荐引用方式 GB/T 7714	COWIE, ALAN,ZHU, JIE. Method and apparatus for two point calibration of a tunable diode laser analyzer. WO2013191728A1. 2013-12-27.

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