The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 11, 2004
Filed:
Feb. 07, 2002
Dietmar Spanke, Loerrach, DE;
Abstract
The microwave measuring device, which preferably operates with microwave bursts, serves to produce a measured value (X ) representing the level of the contents of a vessel ( ). It comprises a transceiver unit ( ) for generating a level-dependent intermediate-frequency signal (ZF) by means of a transmit signal (S ) and a receive signal (E ), and a transducer element ( ) which in operation couples waves (S ), particularly pulsed waves, into the vessel under control of the transmit signal (S ) and converts echo waves (E ) reflected from the contents ( ) of the vessel into the receive signal (E ). The intermediate-frequency signal (ZF) is fed to a control unit ( ) of the level measuring device where it is stored in the form of a sampling sequence (AF) in a volatile data memory ( ). In this manner, both amplitude information and phase information is available for the level measurement. The device is thus capable of measuring level with high accuracy, particularly accurately to a millimeter, and very fast.