AN AUTOMATED VAPOR-GENERATION AND DATA-COLLECTION INSTRUMENT FOR THE EVALUATION OF CHEMICAL MICROSENSORS

被引:16
作者
GRATE, JW
BALLANTINE, DS
WOHLTJEN, H
机构
[1] GEOCTR INC,SUITLAND,MD 20746
[2] MICROSENSOR SYST INC,FAIRFAX,VA 22030
来源
SENSORS AND ACTUATORS | 1987年 / 11卷 / 02期
关键词
COMPUTERS; PERSONAL - Applications - INSTRUMENTS - Computer Applications;
D O I
10.1016/0250-6874(87)80015-X
中图分类号
O65 [分析化学];
学科分类号
070302 ; 081704 ;
摘要
An instrument has been built which can generate up to twelve different vapors from bubbler or permeation tube sources. These vapors can be individually selected, diluted to concentrations typically in the range of 1 to 10,000 mg/m**3 volume and delivered at a programmable flow rate to the system output. Mixtures of two vapors can also be easily generated. The system is fully automated using a small personal computer and permits completely unattended operation during elaborate vapor-exposure sequences. Parameters describing the vapor test conditions are automatically stored in the computer disk memory, along with the sensor responses to the test.
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页码:173 / 188
页数:16
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