发明授权
- 专利标题： Constant pressure gas cell
- 专利标题（中）： 恒压气室
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申请号： US922874申请日： 1992-07-31
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公开(公告)号： US5245405A公开(公告)日： 1993-09-14
- 发明人: John R. Mitchell , Joseph W. Carter , Donald E. Gregonis
- 申请人： John R. Mitchell , Joseph W. Carter , Donald E. Gregonis
- 申请人地址： NJ New Providence
- 专利权人： BOC Health Care, Inc.
- 当前专利权人： BOC Health Care, Inc.
- 当前专利权人地址： NJ New Providence
- 主分类号： G01N21/03
- IPC分类号： G01N21/03 ; G01N21/05 ; G01N21/15 ; G01N21/39 ; G01N21/65 ; G01N21/85
摘要：
A gas analysis cell having a pressure control system eliminates pressure variations in the gas cell regardless of changes in restriction, gas viscosity and barometric pressure. Since optical alignment through the gas cell is sensitive to gas pressure, maintaining a constant pressure in the gas cell makes the system more stable.
公开/授权文献
- US4742536A Telephone monitor circuit and method 公开/授权日：1988-05-03
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