| 摘要 |
<p><P>PROBLEM TO BE SOLVED: To provide a composite type multi-path cell, which includes a novel structure, for simultaneously detecting a plurality of kinds of gas components, and a miniaturized gas measuring instrument for simultaneously detecting a plurality of kinds of the gas components with high precision. <P>SOLUTION: The composite type multi-path cell includes a standard optical measuring system forming a multiple reflecting light path constituted so that two reflecting mirrors having spherical or parabolic reflecting surfaces are arranged in a cell body in opposed relationship while the optical axes of them coincide with each other and the reflecting points of a laser beam on the respective reflecting surfaces are positioned so as to be arranged on the circular or oval track centering around the optical axes of the reflecting mirrors. The multiple reflecting light path is formed in the annular space region extending along the optical axes of the reflecting mirrors and another optical measuring system due to, for example, a non-dispersion type infrared absorbing method mutually independent of the standard optical measuring system is constituted in the columnar space region inside the annular space region. The gas measuring instrument includes the composite type multi-path cell. <P>COPYRIGHT: (C)2011,JPO&INPIT</p> |
