| 摘要 |
FIELD: machine building. ^ SUBSTANCE: system 10 to calibrate determination of data on one or more gas check specimens in gas flow fed to target by gas source 22. Said system comprises partial pressure pickup 12 to generate output signal about partial pressure of said specimens. Also, it comprises total pressure control assembly 14, 26 to determine gas total pressure. Besides, system comprises partial pressure module 24 to determine partial pressure on said specimens in compliance with gas check specimens with partial pressure function. Note here that said function describes partial pressure of said specimens in gas flow in the function of output signal generated by partial pressure pickup. It includes also calibration module 28 to calibrate partial pressure module by determining partial pressure function. Note also that said module defines partial pressure function proceeding from (i) multiple specimens of output signals generated by partial pressure pickup in multiple time intervals during calibration time interval, (ii) multiple determination of total pressure of gas flow made, in fact, at the same time intervals of output signal generation time intervals, and (iii) of target concentration of one or more check specimens in gas flow during calibration time interval. Besides, calibration time interval comprises that wherein gas flow is fed to target when gas source operates to maintain concentration of check specimens, in fact, equal to that of target concentration since total gas pressure varies. ^ EFFECT: higher efficiency and reliability. ^ 25 cl, 4 dwg |
