Method and system for determining distribution of temperature and velocity in a gas turbine engine
US-2015377669-A1 · Dec 31, 2015 · US
Envelope based sample correction for digital flow metrology
US2021018350A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2021018350-A1 |
| Application number | US-202017064671-A |
| Country | US |
| Kind code | A1 |
| Filing date | Oct 7, 2020 |
| Priority date | May 12, 2015 |
| Publication date | Jan 21, 2021 |
| Grant date | — |
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Abstract
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In an embodiment, a system for measuring material flow in a pipe is disclosed. A first transducer is operable to transmit a first signal having a first frequency at a first time and receive a second signal at a second time, and a second transducer spaced apart from the first transducer and is operable to receive the first signal and transmit the second signal having the first frequency. A signal processing circuit communicatively coupled to the first transducer and the second transducer, the signal processing circuit is operable to determine a first envelope of the first signal and a second envelope of the second signal and calculate a flow rate based on the first envelope of the first signal and the second envelope of the second signal.
First claim
Opening claim text (preview).
What is claimed is: 1 . A system, comprising: a first transducer operable to transmit a first signal having a first frequency at a first time and receive a second signal at a second time; a second transducer spaced apart from the first transducer and operable to receive the first signal and transmit the second signal having the first frequency; and a signal processing circuit communicatively coupled to the first transducer and the second transducer, the signal processing circuit operable to: determine a first envelope of the first signal and a second envelope of the second signal; determine a first threshold crossing of the first envelope to an adaptive threshold; determine a second threshold crossing of the second envelope to the adaptive threshold; shifting the first envelope based in part on a time difference between the first threshold crossing and the second threshold crossing; and calculate a flow rate of a material based in part on the shifted first envelope and the second envelope. 2 . The system of claim 1 , wherein the adaptive threshold is adaptive to a temperature of the material. 3 . The system of claim 1 , wherein the first transducer is affixed to a pipe, and wherein the second transducer is spaced apart from the first transducer and affixed to the pipe. 4 . The system of claim 1 , wherein the signal processing circuit is further operable to receive the first signal and the second signal. 5 . The system of claim 4 , wherein the signal processing circuit comprises an analog-to-digital converter, the analog-to-digital converter is operable to sample the received first signal and the received second signal at a sampling frequency. 6 . The system of claim 1 , wherein the signal processing circuit comprises a buffer memory to store the sampled first signal and the sampled second signal.
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- G01F1/662Primary
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Frequently asked questions
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- What does patent US2021018350A1 cover?
- In an embodiment, a system for measuring material flow in a pipe is disclosed. A first transducer is operable to transmit a first signal having a first frequency at a first time and receive a second signal at a second time, and a second transducer spaced apart from the first transducer and is operable to receive the first signal and transmit the second signal having the first frequency. A signa…
- Who is the assignee on this patent?
- Texas Instruments Inc
- What technology area does this patent fall under?
- Primary CPC classification G01F1/662. Mapped technology areas include Physics.
- When was this patent published?
- Publication date Thu Jan 21 2021 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).