A method of and device for calibrating infrared radiation transducers. A concentration factor representing the ratio of a data signal to a reference signal for a known concentration of a designated gas in a sample containing that gas is generated. The concentration factor is stored and used during subsequent calibration procedures. The calibration device has a zero cell and a span cell with windows for transmitting infrared radiation and radiation reflecting or absorbing material in the span cell. The span cell therefore provides a known and consistent level of radiation absorption.
申请公布号
US5206511(A)
申请公布日期
1993.04.27
申请号
US19900600413
申请日期
1990.10.18
申请人
CASCADIA TECHNOLOGY CORPORATION
发明人
APPERSON, JERRY R.;GRAHAM, PAUL K.;MACE, LESLIE E.;RUSSELL, JAMES T.;LABUDA, LAWRENCE L.;COOKE, WALTER A.