| 摘要 |
An optical gas analyzer comprising a source of radiation (1) and means (8) for conducting the radiation obtained from this source (1) through a gas sample and a number of optical filters (10a,10b,10c) corresponding to the number of gases analysed, each of which allows through a wavelength representative for the particular gas and especially absorbed by the same, to a number of detector (11a,11b,11c) corresponding to the number of gases analyzed. The gas analyzer described is intended primarily for the measurement of anaesthesia gases, e g halothane, isoflurane and enflurane, carbon dioxide and laughing gas and in particular in connection with anaesthization for monitoring the patient and administering the anaesthetic. The gas analyzer is characterized by means (8a,8b,8c) for the dividing up of the radiation path after passing of the gas sample for the purpose of simultaneous measurement of the gas concentrations in respective detectors. |
