Device for gauging the level of a fluid
US5543720A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Mar 2, 1994 |
| Grant date | Aug 6, 1996 |
| Priority date | — |
| Expiry date | Mar 2, 2014 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH01Q15/24
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A device for gauging the level of a fluid in a container is described. It comprises a transmitter for transmitting a polarizable microwave signal through a first waveguide section, a receiver for receiving a reflected microwave signal, an electronic unit for determining the reflex position of the reflected microwave signal and an antenna means with a second waveguide section. The device is primarily characterized in that the transmitter and receiver, respectively, transmits and receives a waveguide mode each, mutually orthogonal, and by an easily replaceable third waveguide section (6, 16, 17) inserted between the first (2) and second (5) waveguide sections, provided with means (12, 14, 15, 22) for polarization and/or damping for optimal adaptation of the device to various containers and antennae.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.