发明名称 |
Method of calibrating a wavelength-modulation spectroscopy apparatus using a first, second and third gas to determine temperature and pressure values to calculate concentrations of analytes in a gas |
摘要 |
Several methods of calibrating a wavelength-modulation spectroscopy apparatus configured to measure a concentration of an analyte in a sample gas are disclosed. Each of the methods allows for calibration and recalibration using a relatively safe gas regardless of whether the sample gas for which the concentration of the analyte can be determined is a hazardous gas. In one embodiment of the invention, calibration that is sample-gas specific is accomplished by determining a first slope coefficient and calibration function for the sample gas, after which a scaling factor can be determined based on the first slope coefficient and a second slope coefficient for the same or a different sample gas and used in a subsequent calibration (or recalibration) to scale the calibration function. In other embodiments of the invention, calibration that is not sample-gas specific is accomplished to allow for the determination of the analyte concentration in variable gas compositions and constant gas compositions.
|
申请公布号 |
US8026499(B2) |
申请公布日期 |
2011.09.27 |
申请号 |
US201113083704 |
申请日期 |
2011.04.11 |
申请人 |
GE INFRASTRUCTURE SENSING, INC. |
发明人 |
LIU XIAOYONG;HUANG YUFENG;POOLE JOHN MCKINLEY;BERKOWITZ GENE SMITH;KOWAL ANTHONY;WEHE SHAWN D.;LI HEJIE |
分类号 |
G01V8/00;G01J3/28 |
主分类号 |
G01V8/00 |
代理机构 |
|
代理人 |
|
主权项 |
|
地址 |
|