发明名称 |
Thermally activated calibration system for chemical sensors |
摘要 |
A device for remotely calibrating leak sensors. A supply of liquid analyte calibrant is stored in a reservoir, and is communicated to an outlet nozzle by a conduit having a throughbore. The conduit terminates in an outlet nozzle, and portion of the conduit defines a dosing chamber for storing a measured dose of the liquid calibrant. A thermal activator such as a resistive coil or a radio frequency unit is disposed adjacent the dosing chamber for applying a steep thermal gradient in order to bring the calibrant quickly to its boiling point such that the measured quantity is ejected from the outlet nozzle.
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申请公布号 |
US5970778(A) |
申请公布日期 |
1999.10.26 |
申请号 |
US19970967870 |
申请日期 |
1997.11.12 |
申请人 |
FISHER CONTROLS INTERNATIONAL |
发明人 |
DILGER, JOHN PATRICK |
分类号 |
G01M3/00;(IPC1-7):G12B13/00 |
主分类号 |
G01M3/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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