System and method for determining density of a medium in a tank
US-2015177163-A1 · Jun 25, 2015 · US
FMCW based guided wave radar level gauge
US9506796B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9506796-B2 |
| Application number | US-201414511459-A |
| Country | US |
| Kind code | B2 |
| Filing date | Oct 10, 2014 |
| Priority date | Oct 10, 2014 |
| Publication date | Nov 29, 2016 |
| Grant date | Nov 29, 2016 |
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Abstract
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An FMCW type radar level gauge configured to transmit an electromagnetic transmit signal and receive an electromagnetic return signal reflected from the surface, the electromagnetic transmit signal having a bandwidth of at least 1 GHz, a relative bandwidth (max frequency/min frequency) of less than 2.5 and an upper frequency limit less than 4 GHz. The gauge comprises a single conductor probe mechanically suspended in the tank and extending into the product in the tank, and a matching arrangement providing an electrically matched connection between an electrical feed-through and the single conductor probe. According to the present invention, the relatively expensive still-pipe is replaced with a relatively inexpensive a single conductor acting as a surface wave-guide (SWG).
First claim
Opening claim text (preview).
What is claimed is: 1. An FMCW type radar level gauge for determining a distance to a surface of a product in a tank, said radar level gauge comprising: transceiver circuitry configured to transmit an electromagnetic transmit signal and receive an electromagnetic return signal reflected from said surface, said transceiver circuitry including a frequency modulator configured to modulate a frequency of said transmit signal to vary within a frequency range having an upper frequency…
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Electricity · mapped topic
- G01F23/284Primary
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
Physics · mapped topic
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- What does patent US9506796B2 cover?
- An FMCW type radar level gauge configured to transmit an electromagnetic transmit signal and receive an electromagnetic return signal reflected from the surface, the electromagnetic transmit signal having a bandwidth of at least 1 GHz, a relative bandwidth (max frequency/min frequency) of less than 2.5 and an upper frequency limit less than 4 GHz. The gauge comprises a single conductor probe me…
- Who is the assignee on this patent?
- Rosemount Tank Radar Ab
- What technology area does this patent fall under?
- Primary CPC classification G01F23/284. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Tue Nov 29 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 1 related publication on this page (citations in our corpus or others sharing the same primary CPC).