| 摘要 |
FIELD: gas-analyzers. ^ SUBSTANCE: device has gas carrier line, containing flow activator and serially connected converter of admixtures to condensation cores, detector, means for increasing size of condensation cores, photo-electric measuring device. Device is additionally provided with gas-chromatographic column, admixture concentrator, pump for taking samples from atmosphere, flow switcher, dosage meter of support concentration of detected admixture and microprocessor unit for controlling operations concerning analysis and information processing. Switch can enable concentrator either in line of gas carrier before the column, or in sample-taking pump line, and dosage meter is mounted in gas carrier line prior to switch and contains thermostatted shell, provided with lid with calibrated opening, positioned under cap of absorbing material, connected to rod, made with possible reciprocal movement. Inside the shell some admixture is positioned on inert carrier, and between shell and lid polymer film is hermetically pressed, providing diffusion of admixture substance in carrier gas line. ^ EFFECT: higher precision, higher efficiency, higher trustworthiness, higher reliability, broader functional capabilities. ^ 2 dwg |
