公开(公告)号：WO1997012211A1

公开(公告)日：1997-04-03

申请号：PCT/US1996015297

申请日：1996-09-25

Applicant: ROSEMOUNT INC.

Inventor： ROSEMOUNT INC. ,  PALAN, Donald, F. ,  MILLER, Jon, D.

IPC: G01F23/284

CPC classification number: H01Q1/225 ,  G01F23/284 ,  G01S13/88 ,  H01P1/08 ,  H01Q1/22 ,  H01Q13/02 ,  H01Q19/08

Abstract: A level sensor assembly (14) is mounted on a flange (24) surrounding a port (16) of a tank (10), and has a waveguide adapter (30, 40) for transmitting microwave energy from a source of microwave energy to an aperture (50) of an antenna (48) on the interior of the tank (34). The waveguide includes apertures (38, 46) that carry microwaves to the antenna (48). A mechanical barrier (54) in a portion (46) of the aperture (38, 46) prevents escape of a fluid under pressure or liquid from the interior of the tank (10), and also serves to reduce impedance mismatch between the air, vapor, or liquid filled waveguide and antenna apertures (38, 46, 50). The adapter (30, 40) includes an adapter plate (40) having a second waveguide aperture (38). The aperture (38) has a process sealed mechanical barrier (62) mounted coaxially with the mechanical barrier (54).

Abstract translation: 水平传感器组件（14）安装在围绕罐（10）的端口（16）的凸缘（24）上，并且具有用于将微波能量从微波能量源传输到波导适配器（30,40）的波导适配器（30,40） 在罐（34）内部的天线（48）的孔（50）。 波导包括将微波携带到天线（48）的孔（38,46）。 孔（38,46）的一部分（46）中的机械屏障（54）防止流体在压力或液体从罐（10）的内部逸出，并且还用于减少空气， 蒸汽或液体填充的波导和天线孔（38,46,50）。 适配器（30,40）包括具有第二波导孔（38）的适配器板（40）。 孔（38）具有与机械屏障（54）同轴安装的过程密封机械屏障（62）。

公开(公告)号：EP0852705A1

公开(公告)日：1998-07-15

申请号：EP96935941.0

申请日：1996-09-25

Applicant: ROSEMOUNT INC.

Inventor： PALAN, Donald, F. ,  MILLER, Jon, D.

IPC: G01F15 ,  G01F23 ,  H01P1 ,  H01Q1 ,  H01Q13 ,  H01Q19 ,  G01S13

CPC classification number: H01Q1/225 ,  G01F23/284 ,  G01S13/88 ,  H01P1/08 ,  H01Q1/22 ,  H01Q13/02 ,  H01Q19/08

Abstract: A process sealed waveguide is formed in a flange mounted on a tank, and is used for transmitting microwave energy from a source of microwave energy to an aperture of an antenna on the interior of the tank. The process sealed waveguide includes a mechanical barrier to prevent escape of fluid under pressure or liquid from the interior of the tank, and also serves to reduce impedance mismatch between the air, vapor, or liquid filled waveguide or antenna apertures. The flange is mated to the microwave source through an electronic housing to flange adapter that interfaces with the flange in a manner to provide a vent in case the mechanical barrier fails so pressure is released, and to provide flame quenching if flames are present. The adapter includes a second waveguide having a process sealed mechanical barrier mounted coaxially with the mechanical barrier in the waveguide in the flange.