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公开(公告)号：US20120182555A1
公开(公告)日：2012-07-19
申请号：US13226809
申请日：2011-09-07
IPC分类号： G01N21/61
CPC分类号： G01N21/39 , G01J3/0224 , G01J3/26 , G01J3/42 , G01N21/274 , G01N21/314 , G01N21/3504 , G01N2021/1793 , G01N2021/3166 , G01N2021/3188 , G01N2021/3513
摘要： A gas detector includes a receiver configured to receive light from a light source through gas, the light source having a bandwidth on the order of an absorption linewidth of the gas, the receiver including at least a first etalon having a transmission bandwidth on the order of the absorption linewidth of the gas, the transmission bandwidth of the first etalon being substantially smaller than the bandwidth of the light source. The gas detector further includes a first detector for detecting light transmitted through the first etalon, a second detector for detecting light reflected from the first etalon, and a processor that determines the quantity of gas based on the detected transmitted and reflected light. The gas detector can further include a second etalon with a transmission bandwidth approximately equal and adjacent to the transmission bandwidth of the first etalon. Alternatively, the gas detector can include a beam separator that separates the light from the light source into a first beam and a second beam, with a small deflection angle between the first beam and the second beam, thereby modifying the effective thickness of a single optical element for each beam and forming the first and second etalon in the optical element.
摘要翻译： 气体检测器包括：接收器，被配置为通过气体接收来自光源的光，所述光源具有大约为气体吸收线宽度的带宽，所述接收器至少包括第一标准具，所述第一标准具具有按照 气体的吸收线宽度，第一标准具的传输带宽显着小于光源的带宽。 气体检测器还包括用于检测通过第一标准具传输的光的第一检测器，用于检测从第一标准具反射的光的第二检测器，以及基于检测到的透射和反射光来确定气体量的处理器。 气体检测器还可以包括第二标准具，其传输带宽近似相等并且与第一标准具的传输带宽相邻。 或者，气体检测器可以包括光束分离器，其将来自光源的光分离成第一光束和第二光束，第一光束和第二光束之间具有小的偏转角，由此修改单个光学器件的有效厚度 元件，并在光学元件中形成第一和第二标准具。
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公开(公告)号：US08599381B2
公开(公告)日：2013-12-03
申请号：US13226809
申请日：2011-09-07
CPC分类号： G01N21/39 , G01J3/0224 , G01J3/26 , G01J3/42 , G01N21/274 , G01N21/314 , G01N21/3504 , G01N2021/1793 , G01N2021/3166 , G01N2021/3188 , G01N2021/3513
摘要： A gas detector includes a receiver configured to receive light from a light source through gas, the light source having a bandwidth on the order of an absorption linewidth of the gas, the receiver including at least a first etalon having a transmission bandwidth on the order of the absorption linewidth of the gas, the transmission bandwidth of the first etalon being substantially smaller than the bandwidth of the light source. The gas detector further includes a first detector for detecting light transmitted through the first etalon, a second detector for detecting light reflected from the first etalon, and a processor that determines the quantity of gas based on the detected transmitted and reflected light. The gas detector can further include a second etalon with a transmission bandwidth approximately equal and adjacent to the transmission bandwidth of the first etalon. Alternatively, the gas detector can include a beam separator that separates the light from the light source into a first beam and a second beam, with a small deflection angle between the first beam and the second beam, thereby modifying the effective thickness of a single optical element for each beam and forming the first and second etalon in the optical element.
摘要翻译： 气体检测器包括：接收器，被配置为通过气体接收来自光源的光，所述光源具有大约为气体吸收线宽度的带宽，所述接收器至少包括第一标准具，传输带宽为 气体的吸收线宽度，第一标准具的传输带宽显着小于光源的带宽。 气体检测器还包括用于检测通过第一标准具传输的光的第一检测器，用于检测从第一标准具反射的光的第二检测器，以及基于检测到的透射和反射光来确定气体量的处理器。 气体检测器还可以包括第二标准具，其传输带宽近似相等并且与第一标准具的传输带宽相邻。 或者，气体检测器可以包括光束分离器，其将来自光源的光分离成第一光束和第二光束，第一光束和第二光束之间具有小的偏转角，由此修改单个光学器件的有效厚度 元件，并在光学元件中形成第一和第二标准具。
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