发明名称 |
Calibration cell for the calibration of gaseous or non-gaseous fluid constituent sensors |
摘要 |
A reference liquid-containing calibration cell for the calibration of a sensor for measuring a gaseous or non-gaseous constituent parameter of a fluid includes a chamber containing the reference liquid. The chamber is sealed to prevent loss of the reference liquid, and provides for communication between the sensor and a reference constituent present in the reference liquid. The chamber includes a gas-inleting port sealed by a first semi-permeable membrane which is permeable to a gaseous fluid constituent but impermeable to the reference liquid and non-gaseous reference constituents present in the reference liquid, the chamber further including a gas vent.
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申请公布号 |
US4635467(A) |
申请公布日期 |
1987.01.13 |
申请号 |
US19850736767 |
申请日期 |
1985.05.22 |
申请人 |
AMERICAN HOSPITAL SUPPLY CORPORATION |
发明人 |
HOFFA, JACK L.;KARKAR, MAURICE N. |
分类号 |
G01N27/416;G01N33/00;(IPC1-7):G01C25/00 |
主分类号 |
G01N27/416 |
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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