公开(公告)号：US10816384B2

公开(公告)日：2020-10-27

申请号：US15798677

申请日：2017-10-31

申请人： Rosemount Tank Radar AB

发明人： Christer Frövik ,  Anders Friedmann

IPC分类号： G01F23/284 ,  G01S7/292 ,  G01S7/00

摘要： A method of determining at least a first interface level of a first interface in a tank containing a stratified substance composition, comprising the steps of generating and transmitting an electromagnetic transmit signal; guiding the transmit signal at least partly through the stratified substance composition; returning an electromagnetic reflection signal resulting from reflection of the transmit signal; receiving, the reflection signal; determining, based on the reflection signal and a timing relation between the reflection signal and the transmit signal, an echo signal exhibiting an echo signal strength as a function of a propagation parameter indicative of position along the probe; and determining, the first interface level based on a first propagation parameter value indicative of a first threshold position for which the echo signal has reached a predetermined first threshold signal strength, and a first offset indicative of a first offset distance from the first threshold position.

公开(公告)号：US20190128727A1

公开(公告)日：2019-05-02

申请号：US15798677

申请日：2017-10-31

申请人： Rosemount Tank Radar AB

发明人： Christer Frövik ,  Anders Friedmann

IPC分类号： G01F23/284

CPC分类号： G01F23/284 ,  G01S7/003 ,  G01S7/2922

摘要： A method of determining at least a first interface level of a first interface in a tank containing a stratified substance composition, comprising the steps of generating and transmitting an electromagnetic transmit signal; guiding the transmit signal at least partly through the stratified substance composition; returning an electromagnetic reflection signal resulting from reflection of the transmit signal; receiving, the reflection signal; determining, based on the reflection signal and a timing relation between the reflection signal and the transmit signal, an echo signal exhibiting an echo signal strength as a function of a propagation parameter indicative of position along the probe; and determining, the first interface level based on a first propagation parameter value indicative of a first threshold position for which the echo signal has reached a predetermined first threshold signal strength, and a first offset indicative of a first offset distance from the first threshold position.