Search International and National Patent Collections

1. (WO2018144997) THROUGH AIR RADAR LEVEL TRANSMITTER WITH MEASUREMENT OF FIRST MOVING ECHO

Pub. No.:    WO/2018/144997    International Application No.:    PCT/US2018/016850
Publication Date: Fri Aug 10 01:59:59 CEST 2018 International Filing Date: Tue Feb 06 00:59:59 CET 2018
IPC: G01S 1/72
Applicants: MAGNETROL INTERNATIONAL, INCORPORATED
Inventors: TURCOTTE, Christopher, P.
PAGE, Steven, R.
Title: THROUGH AIR RADAR LEVEL TRANSMITTER WITH MEASUREMENT OF FIRST MOVING ECHO
Abstract:
A level measurement instrument comprises an analog circuit for transmitting a pulse signal at a target of interest and receiving reflected echoes of the pulse signal and developing an echo waveform representative of the reflected echoes. A programmed digital circuit is operatively coupled to the analog circuit and comprises a programmed controller and memory. The controller is operatively programmed to identify peaks in the echo waveform and store an active peak list in the memory from a current measurement scan and a buffer peak list from prior measurement scans. The controller is further programmed to match peaks in the active peak list to peaks in the buffer peak list, to select a target peak from the active peak list based on which of the matched peaks have moved, and determining material level responsive to the target peak.