Title:
【発明の名称】例えば工業用タンクの充填レベル計測のための距離測定機器
Document Type and Number:
Japanese Patent JPH05505678
Kind Code:
A
Abstract:
PCT No. PCT/EP91/02240 Sec. 371 Date Jul. 2, 1992 Sec. 102(e) Date Jul. 2, 1992 PCT Filed Nov. 26, 1991 PCT Pub. No. WO91/12292 PCT Pub. Date Oct. 18, 1990.A distance measuring device for measuring the fill level in industrial tanks, which includes electronic transmitting- and receiving elements for short wave electromagnetic waves, such as microwaves, and a cylindrical waveguide which extends through a separating wall and inside of which is a waveguide window separating the two spaces and made of a material, such as quartz glass, which is transmissive with respect to electromagnetic waves. The waveguide and the waveguide window (3) have conically-shaped sections (5) to provide axial support. To protect the waveguide window against destruction due to thermal expansions and pressure fluctuations, the conical section (5) of the waveguide window (3) is in a correspondingly formed conical socket (8). The socket is mounted with play in a cylindrical bore (9) of the waveguide window (3) and is supported by a shoulder (10) of the waveguide in the axial direction. For support in both longitudinal directions, two waveguide windows (3), each with one socket (8), are arranged in a mirror image configuration, and the waveguide is divided into two detachably joined sections so that, when open, the sockets (8) and the waveguide windows (3) can be placed into the cylindrical bores (9) of the sections.
Inventors:
Van der Paul, Ronald
Application Number:
JP50032692A
Publication Date:
August 19, 1993
Filing Date:
November 26, 1991
Export Citation:
Assignee:
Krone Mestehinik Gezershyaft Mitz Besilyenktel Haftung Und Companie Commande Gezershyaft
International Classes:
G01F23/28; G01F23/284; G01S13/34; H01P1/08; (IPC1-7): G01F23/28; H01P1/08
Attorney, Agent or Firm:
Toshio Yano (2 outside)