CA2536341A1 - Flow meter filter system and method - Google Patents
Flow meter filter system and method Download PDFInfo
- Publication number
- CA2536341A1 CA2536341A1 CA002536341A CA2536341A CA2536341A1 CA 2536341 A1 CA2536341 A1 CA 2536341A1 CA 002536341 A CA002536341 A CA 002536341A CA 2536341 A CA2536341 A CA 2536341A CA 2536341 A1 CA2536341 A1 CA 2536341A1
- Authority
- CA
- Canada
- Prior art keywords
- flow meter
- noise
- signal
- value
- damping
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 238000000034 method Methods 0.000 title claims 21
- 238000013016 damping Methods 0.000 claims abstract 45
- 238000001914 filtration Methods 0.000 claims 4
- 125000004122 cyclic group Chemical group 0.000 claims 3
- 230000007704 transition Effects 0.000 claims 2
- 230000008878 coupling Effects 0.000 claims 1
- 238000010168 coupling process Methods 0.000 claims 1
- 238000005859 coupling reaction Methods 0.000 claims 1
- 238000005070 sampling Methods 0.000 claims 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
- G01F1/76—Devices for measuring mass flow of a fluid or a fluent solid material
- G01F1/78—Direct mass flowmeters
- G01F1/80—Direct mass flowmeters operating by measuring pressure, force, momentum, or frequency of a fluid flow to which a rotational movement has been imparted
- G01F1/84—Coriolis or gyroscopic mass flowmeters
- G01F1/8409—Coriolis or gyroscopic mass flowmeters constructional details
- G01F1/8436—Coriolis or gyroscopic mass flowmeters constructional details signal processing
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F1/00—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F15/00—Details of, or accessories for, apparatus of groups G01F1/00 - G01F13/00 insofar as such details or appliances are not adapted to particular types of such apparatus
- G01F15/06—Indicating or recording devices
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F25/00—Testing or calibration of apparatus for measuring volume, volume flow or liquid level or for metering by volume
Abstract
A flow meter filter system (200) according to an embodiment of the invention includes a noise pass filter (203) configured to receive a first version of a flow meter signal and filter out the flow meter data from the flow meter signal to leave a noise signal, a noise quantifier (204) configured to recei ve the noise signal from the noise pass filter (203) and measure noise characteristics of the noise signal, a damping adjuster (205) configured to receive the noise characteristics from the noise quantifier (204) and genera te a damping value based on the noise characteristics, and a filter element (20 6) configured to receive a second version of the flow meter signal and receive the damping value from the damping adjuster (205), with the filter element (206) being further configured to damp the second version of the flow meter signal based on the damping value in order to produce a filtered flow meter signal.
Claims (36)
1. A flow meter filter system (200) comprising:
a noise pass filter (203) configured to receive a first version of a flow meter signal and filter out the flow meter data from the flow meter signal to leave a noise signal;
a noise quantifier (204) configured to receive the noise signal from the noise pass filter (203) and measure noise characteristics of the noise signal;
a damping adjuster (205) configured to receive the noise characteristics from the noise quantifier (204) and generate a damping value based on the noise characteristics; and a filter element (206) configured to receive a second version of the flow meter signal and receive the damping value from the damping adjuster (205), with the filter element (206) being further configured to damp the second version of the flow meter signal based on the damping value in order to produce a filtered flow meter signal.
a noise pass filter (203) configured to receive a first version of a flow meter signal and filter out the flow meter data from the flow meter signal to leave a noise signal;
a noise quantifier (204) configured to receive the noise signal from the noise pass filter (203) and measure noise characteristics of the noise signal;
a damping adjuster (205) configured to receive the noise characteristics from the noise quantifier (204) and generate a damping value based on the noise characteristics; and a filter element (206) configured to receive a second version of the flow meter signal and receive the damping value from the damping adjuster (205), with the filter element (206) being further configured to damp the second version of the flow meter signal based on the damping value in order to produce a filtered flow meter signal.
2. The flow meter filter system (200) of claim 1, with the noise pass filter (203) comprising an Alternating Current (AC) coupling filter.
3. The flow meter filter system (200) of claim 1, with the noise pass filter (203) comprising a second-order Infinite Impulse Response (IIR) digital filter.
4. The flow meter filter system (200) of claim 1, wherein the noise characteristics include a maximum noise amplitude and a zero offset.
5. The flow meter filter system (200) of claim 1, wherein the damping adjuster (205) is further configured to receive an error signal generated by the filter element (206), with the error signal comprising a difference between the second version of the flow meter signal and the filtered flow meter signal.
6. The flow meter filter system (200) of claim 1, wherein the damping adjuster (205) is further configured to receive a predetermined maximum flow value.
7. The flow meter filter system (200) of claim 1, wherein the damping adjuster (205) is further configured to divide the zero offset by the predetermined maximum flow value in order to determine whether the noise signal is substantially centered around zero.
8. The flow meter filter system (200) of claim 1, wherein the damping adjuster (205) is further configured to input the noise characteristics into a damping table in order to generate the damping value.
9. The flow meter filter system (200) of claim 1, wherein the damping adjuster (205) is further configured to generate the damping value based on the noise characteristics and on a damping delay coefficient.
10. The flow meter filter system (200) of claim 1, with the filter element (206) comprising a second-order filter.
11. The flow meter filter system (200) of claim 1, with the filter element (206) comprising an Infinite Impulse Response (IIR) digital filter.
12. The flow meter filter system (200) of claim 1, with the filter element (206) comprising a second order Infinite Impulse Response (IIR) digital filter.
13. The flow meter filter system (200) of claim 1, wherein the noise signal has a frequency in the range of about 0.025 Hz to about 1.0 Hz.
14. The flow meter filter system (200) of claim 1, wherein the noise signal comprises cyclic noise.
15. The flow meter filter system (200) of claim 1, wherein the noise signal comprises cross-tally noise.
16. The flow meter filter system (200) of claim 1, wherein the flow meter signal comprises a Coriolis flow meter signal.
17. A method of removing noise from a flow meter signal, comprising the steps of:
receiving the flow meter signal;
applying a large damping value to the flow meter signal in order to produce a filtered flow meter signal if the flow meter signal is substantially quiescent; and applying a small damping value to the flow meter signal in order to produce the filtered flow meter signal if the flow meter signal is experiencing a transition.
receiving the flow meter signal;
applying a large damping value to the flow meter signal in order to produce a filtered flow meter signal if the flow meter signal is substantially quiescent; and applying a small damping value to the flow meter signal in order to produce the filtered flow meter signal if the flow meter signal is experiencing a transition.
18. The method of claim 17, further comprising the steps of:
normalizing the flow meter signal from an original value to a normalized value prior to the damping; and scaling the filtered flow meter signal of the damping step substantially back to the original flow meter signal magnitude.
normalizing the flow meter signal from an original value to a normalized value prior to the damping; and scaling the filtered flow meter signal of the damping step substantially back to the original flow meter signal magnitude.
19. The method of claim 17, further comprising the steps of:
filtering a noise signal substantially out of a first version of the flow meter signal;
measuring the noise signal to obtain noise characteristics; and determining a damping value from the noise characteristics, with the damping value being selected to substantially remove the noise signal from the flow meter signal and produce the filtered flow meter signal.
filtering a noise signal substantially out of a first version of the flow meter signal;
measuring the noise signal to obtain noise characteristics; and determining a damping value from the noise characteristics, with the damping value being selected to substantially remove the noise signal from the flow meter signal and produce the filtered flow meter signal.
20. The method of claim 17, further comprising the steps of:
filtering a noise signal substantially out of a first version of the flow meter signal;
measuring the noise signal to obtain noise characteristics;
determining a damping value from the noise characteristics, with the damping value being chosen to substantially remove the noise signal from the flow meter signal;
determining an error value between the second version of the flow meter signal and the filtered flow meter signal; and feeding the error value back into the step of determining the damping value, wherein the error value is included in the damping value determination.
filtering a noise signal substantially out of a first version of the flow meter signal;
measuring the noise signal to obtain noise characteristics;
determining a damping value from the noise characteristics, with the damping value being chosen to substantially remove the noise signal from the flow meter signal;
determining an error value between the second version of the flow meter signal and the filtered flow meter signal; and feeding the error value back into the step of determining the damping value, wherein the error value is included in the damping value determination.
21. The method of claim 17, wherein the noise signal has a frequency in the range of about 0.025 Hz to about 1.0 Hz.
22. The method of claim 17, wherein the noise signal comprises cyclic noise.
23. The method of claim 17, wherein the noise signal comprises cross-talk noise.
24. The method of claim 17, wherein the flow meter signal comprises a Coriolis flow meter signal.
25. The method of claim 17, further comprising the steps of:
dividing a zero offset of the noise characteristics by the maximum flow value to obtain a noise value;
comparing the noise value to a predetermined quiescent threshold;
using the noise value for determining a new damping value if the noise value is less than the predetermined quiescent threshold; and using a current damping value if the noise value is not less than the predetermined quiescent threshold.
dividing a zero offset of the noise characteristics by the maximum flow value to obtain a noise value;
comparing the noise value to a predetermined quiescent threshold;
using the noise value for determining a new damping value if the noise value is less than the predetermined quiescent threshold; and using a current damping value if the noise value is not less than the predetermined quiescent threshold.
26. A method of removing noise from a flow meter signal, comprising the steps of:
receiving the flow meter signal;
filtering a noise signal substantially out of a first version of the flow meter signal;
measuring the noise signal to obtain noise characteristics;
determining a damping value from the noise characteristics, with the damping value being selected to substantially remove the noise signal from the flow meter signal; and damping the noise substantially out of a second version of the flow meter signal using the damping value in order to produce a filtered flow meter signal.
receiving the flow meter signal;
filtering a noise signal substantially out of a first version of the flow meter signal;
measuring the noise signal to obtain noise characteristics;
determining a damping value from the noise characteristics, with the damping value being selected to substantially remove the noise signal from the flow meter signal; and damping the noise substantially out of a second version of the flow meter signal using the damping value in order to produce a filtered flow meter signal.
27. The method of claim 26, further comprising the steps of:
normalizing the flow meter signal from an original value to a normalized value prior to the damping; and scaling the filtered flow meter signal of the damping step substantially back to the original flow meter signal magnitude.
normalizing the flow meter signal from an original value to a normalized value prior to the damping; and scaling the filtered flow meter signal of the damping step substantially back to the original flow meter signal magnitude.
28. The method of claim 26, further comprising the steps of:
determining an error value between the second version of the flow meter signal and the filtered flow meter signal; and feeding the error value back into the step of determining the damping value, wherein the error value is included in the damping value determination.
determining an error value between the second version of the flow meter signal and the filtered flow meter signal; and feeding the error value back into the step of determining the damping value, wherein the error value is included in the damping value determination.
29. The method of claim 26, with the damping further comprising the steps of:
applying a large damping value to the flow meter signal if the flow meter signal is substantially quiescent; and applying a small damping value to the flow meter signal if the flow meter signal is experiencing a transition.
applying a large damping value to the flow meter signal if the flow meter signal is substantially quiescent; and applying a small damping value to the flow meter signal if the flow meter signal is experiencing a transition.
30. The method of claim 26, further comprising sampling the first version of the flow meter signal before the filtering.
31. The method of claim 26, wherein the noise characteristics include a noise amplitude and a zero offset.
32. The method of claim 26, wherein the noise signal has a frequency in the range of about 0.025 Hz to about 1.0 Hz.
33. The method of claim 26, wherein the noise signal comprises cyclic noise.
34. The method of claim 26, wherein the noise signal comprises cross-talk noise.
35. The method of claim 26, wherein the flow meter signal comprises a Coriolis flow meter signal.
36. The method of claim 26, further comprising the steps of:
dividing a zero offset of the noise characteristics by the maximum flow value to obtain a noise value;
comparing the noise value to a predetermined quiescent threshold;
using the noise value in the determining step for determining a new damping value if the noise value is less than the predetermined quiescent threshold; and using a current damping value in the damping step if the noise value is not less than the predetermined quiescent threshold.
dividing a zero offset of the noise characteristics by the maximum flow value to obtain a noise value;
comparing the noise value to a predetermined quiescent threshold;
using the noise value in the determining step for determining a new damping value if the noise value is less than the predetermined quiescent threshold; and using a current damping value in the damping step if the noise value is not less than the predetermined quiescent threshold.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/US2003/027961 WO2005033634A1 (en) | 2003-09-05 | 2003-09-05 | Flow meter filter system and method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CA2536341A1 true CA2536341A1 (en) | 2005-04-14 |
| CA2536341C CA2536341C (en) | 2012-11-27 |
Family
ID=34421179
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CA2536341A Expired - Lifetime CA2536341C (en) | 2003-09-05 | 2003-09-05 | Flow meter filter system and method |
Country Status (12)
| Country | Link |
|---|---|
| US (2) | US7257495B2 (en) |
| EP (1) | EP1660844B1 (en) |
| JP (1) | JP4546926B2 (en) |
| KR (4) | KR20100035189A (en) |
| CN (1) | CN100434869C (en) |
| AR (1) | AR045508A1 (en) |
| AU (1) | AU2003268513A1 (en) |
| BR (2) | BRPI0318493B1 (en) |
| CA (1) | CA2536341C (en) |
| HK (1) | HK1096146A1 (en) |
| MX (1) | MXPA06002319A (en) |
| WO (1) | WO2005033634A1 (en) |
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| CA2667498C (en) | 2006-11-10 | 2013-01-15 | Rem Scientific Enterprises, Inc. | Rotating fluid measurement device and method |
| NL1034349C2 (en) * | 2007-09-07 | 2009-03-10 | Berkin Bv | Coriolis type flow measuring system with analog-digital converters with adjustable sampling frequency. |
| DE102007052047B4 (en) * | 2007-10-31 | 2014-06-26 | Abb Ag | Method and device for measuring foreign bodies in the measuring medium |
| US8061216B2 (en) * | 2007-12-21 | 2011-11-22 | Bausch & Lomb Incorporated | Aspiration flow mesurement system with flow signal air bubble filter |
| AU2008360010B2 (en) * | 2008-07-30 | 2014-02-13 | Micro Motion, Inc. | Optimizing processor operation in a processing system including one or more digital filters |
| US10876369B2 (en) | 2014-09-30 | 2020-12-29 | Hydril USA Distribution LLC | High pressure blowout preventer system |
| CN107002481B (en) | 2014-09-30 | 2020-02-07 | 海德里尔美国配送有限责任公司 | Safety Integrity Level (SIL) rating system for blowout preventer control |
| US10196871B2 (en) | 2014-09-30 | 2019-02-05 | Hydril USA Distribution LLC | Sil rated system for blowout preventer control |
| US10048673B2 (en) | 2014-10-17 | 2018-08-14 | Hydril Usa Distribution, Llc | High pressure blowout preventer system |
| US9989975B2 (en) | 2014-11-11 | 2018-06-05 | Hydril Usa Distribution, Llc | Flow isolation for blowout preventer hydraulic control systems |
| WO2016085506A1 (en) * | 2014-11-26 | 2016-06-02 | Rem Scientific Enterprises, Inc | Systems and methods for reducing casing noise effects |
| US9759018B2 (en) | 2014-12-12 | 2017-09-12 | Hydril USA Distribution LLC | System and method of alignment for hydraulic coupling |
| CN107407140B (en) | 2014-12-17 | 2021-02-19 | 海德里尔美国配送有限责任公司 | Power and communication concentrator for controlling an interface between a pod, an auxiliary subsea system and a surface control |
| US9528340B2 (en) | 2014-12-17 | 2016-12-27 | Hydrill USA Distribution LLC | Solenoid valve housings for blowout preventer |
| US9828824B2 (en) * | 2015-05-01 | 2017-11-28 | Hydril Usa Distribution, Llc | Hydraulic re-configurable and subsea repairable control system for deepwater blow-out preventers |
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| DE102018110456A1 (en) * | 2018-05-02 | 2019-11-07 | Endress + Hauser Flowtec Ag | Measuring system and method for measuring a measured variable of a flowing fluid |
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| WO2021197764A1 (en) * | 2020-03-31 | 2021-10-07 | Endress+Hauser Flowtec Ag | Method for operating a coriolis measurement device |
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-
2003
- 2003-09-05 US US10/568,861 patent/US7257495B2/en not_active Expired - Lifetime
- 2003-09-05 KR KR1020107006401A patent/KR20100035189A/en active Search and Examination
- 2003-09-05 KR KR1020117027722A patent/KR101380291B1/en active IP Right Grant
- 2003-09-05 CN CNB038270358A patent/CN100434869C/en not_active Expired - Lifetime
- 2003-09-05 MX MXPA06002319A patent/MXPA06002319A/en active IP Right Grant
- 2003-09-05 WO PCT/US2003/027961 patent/WO2005033634A1/en active Application Filing
- 2003-09-05 EP EP03749480.4A patent/EP1660844B1/en not_active Expired - Lifetime
- 2003-09-05 BR BRPI0318493-5A patent/BRPI0318493B1/en unknown
- 2003-09-05 AU AU2003268513A patent/AU2003268513A1/en not_active Abandoned
- 2003-09-05 KR KR1020067004567A patent/KR101014314B1/en active IP Right Grant
- 2003-09-05 JP JP2005509375A patent/JP4546926B2/en not_active Expired - Fee Related
- 2003-09-05 KR KR1020107026574A patent/KR20100127321A/en not_active Application Discontinuation
- 2003-09-05 CA CA2536341A patent/CA2536341C/en not_active Expired - Lifetime
- 2003-09-05 BR BRPI0318493-5A patent/BR0318493A/en active IP Right Grant
-
2004
- 2004-08-26 AR ARP040103070A patent/AR045508A1/en unknown
-
2007
- 2007-03-26 HK HK07103204.9A patent/HK1096146A1/en not_active IP Right Cessation
- 2007-06-25 US US11/767,615 patent/US7558684B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| AR045508A1 (en) | 2005-11-02 |
| CA2536341C (en) | 2012-11-27 |
| US7558684B2 (en) | 2009-07-07 |
| KR101014314B1 (en) | 2011-02-16 |
| KR20110129989A (en) | 2011-12-02 |
| BR0318493A (en) | 2006-09-12 |
| CN1839295A (en) | 2006-09-27 |
| US7257495B2 (en) | 2007-08-14 |
| AU2003268513A1 (en) | 2005-04-21 |
| HK1096146A1 (en) | 2007-05-25 |
| KR20100035189A (en) | 2010-04-02 |
| MXPA06002319A (en) | 2006-05-19 |
| US20060265168A1 (en) | 2006-11-23 |
| WO2005033634A1 (en) | 2005-04-14 |
| KR101380291B1 (en) | 2014-04-01 |
| JP4546926B2 (en) | 2010-09-22 |
| EP1660844A1 (en) | 2006-05-31 |
| BRPI0318493B1 (en) | 2018-07-03 |
| KR20060092210A (en) | 2006-08-22 |
| JP2007521466A (en) | 2007-08-02 |
| KR20100127321A (en) | 2010-12-03 |
| US20070262814A1 (en) | 2007-11-15 |
| CN100434869C (en) | 2008-11-19 |
| EP1660844B1 (en) | 2017-03-15 |
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