公开(公告)号：WO2003069314A1

公开(公告)日：2003-08-21

申请号：PCT/CA2003/000185

申请日：2003-02-10

Applicant: NATIONAL RESEARCH COUNCIL OF CANADA ,  BELAND, Mario

Inventor： BELAND, Mario

IPC: G01N1/22

CPC classification number: G01N1/2226 ,  G01N2001/2232 ,  G01N2001/2285

Abstract: An improved tube probe for measuring volatile compounds in a liquid or gas contained in a reactor or in any other environment is disclosed as are improved gas detecting mechanisms. The probe is made of a single piece of metal (10), to one end of which is attached a gas permeable tubing (26), threaded on a supporting plate (28). The plate permits to use of a variety of tube lengths and diameters while protecting the tube from mechanical stress due to agitation and aeration. Furthermore, the plate gives the possibility to have a longer permeable tube than the single loop probe approach. The probe is designed so that when in use, substantially only the tube is located inside the reactor. The volatile compounds permeate into the tube into the carrier gas and the carrier gas + volatiles mixture is carried to a detector through a channel provided in the probe body. Novel electrical circuits to operate a gas sensing element are also disclosed.

Abstract translation: 改进的气体检测机构公开了用于测量反应器或任何其它环境中所含的液体或气体中的挥发性化合物的改进的管探针。 探针由单块金属10制成，其一端连接有螺纹连接在支撑板28上的透气管26。该板允许使用各种管长度和直径，同时保护管免受 由于搅拌和曝气引起的机械应力。 此外，该板具有比单回路探针方法更长的可渗透管的可能性。 探针的设计使得当使用时，基本上只有管位于反应器内部。 挥发性化合物渗透入管中，并将载气+挥发物混合物通过设置在探针体内的通道传送到检测器。 还公开了用于操作气体感测元件的新型电路。