ZA200207058B - Method of determining speed of rotation of a motor and a computer software product to carry out the method. - Google Patents
Method of determining speed of rotation of a motor and a computer software product to carry out the method. Download PDFInfo
- Publication number
- ZA200207058B ZA200207058B ZA200207058A ZA200207058A ZA200207058B ZA 200207058 B ZA200207058 B ZA 200207058B ZA 200207058 A ZA200207058 A ZA 200207058A ZA 200207058 A ZA200207058 A ZA 200207058A ZA 200207058 B ZA200207058 B ZA 200207058B
- Authority
- ZA
- South Africa
- Prior art keywords
- motor
- speed
- rotation
- maximum likelihood
- determining
- Prior art date
Links
- 238000000034 method Methods 0.000 title claims abstract description 31
- 238000005259 measurement Methods 0.000 claims abstract description 71
- 238000007476 Maximum Likelihood Methods 0.000 claims abstract description 32
- 230000006870 function Effects 0.000 claims abstract description 25
- 238000005070 sampling Methods 0.000 claims abstract description 14
- 230000000737 periodic effect Effects 0.000 claims abstract description 11
- 230000001360 synchronised effect Effects 0.000 claims description 12
- 230000001133 acceleration Effects 0.000 claims description 4
- 238000013480 data collection Methods 0.000 description 13
- 238000004458 analytical method Methods 0.000 description 7
- 238000003775 Density Functional Theory Methods 0.000 description 4
- 238000012544 monitoring process Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000008901 benefit Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 238000001845 vibrational spectrum Methods 0.000 description 2
- 101100400378 Mus musculus Marveld2 gene Proteins 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002238 attenuated effect Effects 0.000 description 1
- 238000004364 calculation method Methods 0.000 description 1
- 230000008878 coupling Effects 0.000 description 1
- 238000010168 coupling process Methods 0.000 description 1
- 238000005859 coupling reaction Methods 0.000 description 1
- REQPQFUJGGOFQL-UHFFFAOYSA-N dimethylcarbamothioyl n,n-dimethylcarbamodithioate Chemical compound CN(C)C(=S)SC(=S)N(C)C REQPQFUJGGOFQL-UHFFFAOYSA-N 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000004044 response Effects 0.000 description 1
- 238000001228 spectrum Methods 0.000 description 1
- 230000007480 spreading Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01P—MEASURING LINEAR OR ANGULAR SPEED, ACCELERATION, DECELERATION, OR SHOCK; INDICATING PRESENCE, ABSENCE, OR DIRECTION, OF MOVEMENT
- G01P3/00—Measuring linear or angular speed; Measuring differences of linear or angular speeds
- G01P3/42—Devices characterised by the use of electric or magnetic means
- G01P3/44—Devices characterised by the use of electric or magnetic means for measuring angular speed
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
- G01M15/12—Testing internal-combustion engines by monitoring vibrations
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Combustion & Propulsion (AREA)
- Control Of Electric Motors In General (AREA)
- Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| FI20000646A FI20000646A0 (fi) | 2000-03-20 | 2000-03-20 | Menetelmä pyörimisnopeuden määrittämiseksi |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ZA200207058B true ZA200207058B (en) | 2002-10-31 |
Family
ID=8557980
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ZA200207058A ZA200207058B (en) | 2000-03-20 | 2002-09-03 | Method of determining speed of rotation of a motor and a computer software product to carry out the method. |
Country Status (11)
| Country | Link |
|---|---|
| US (1) | US6697759B2 (fi) |
| EP (1) | EP1285274B1 (fi) |
| AT (1) | ATE303599T1 (fi) |
| AU (2) | AU4838801A (fi) |
| BR (1) | BR0109411A (fi) |
| CA (1) | CA2402441A1 (fi) |
| DE (1) | DE60113101T2 (fi) |
| FI (1) | FI20000646A0 (fi) |
| NO (1) | NO20024471L (fi) |
| WO (1) | WO2001071362A1 (fi) |
| ZA (1) | ZA200207058B (fi) |
Families Citing this family (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7124637B2 (en) * | 2004-03-22 | 2006-10-24 | Johnson Controls Technology Company | Determining amplitude limits for vibration spectra |
| US7437272B2 (en) * | 2005-11-01 | 2008-10-14 | Honeywell International Inc. | Systems and methods for self-synchronized digital sampling |
| US8229598B2 (en) * | 2007-09-06 | 2012-07-24 | Okuma Corporation | Vibration suppressing device for machine tool |
| US8014903B2 (en) * | 2007-10-25 | 2011-09-06 | Okuma Corporation | Method for suppressing vibration and device therefor |
| US8005574B2 (en) * | 2008-07-08 | 2011-08-23 | Okuma Corporation | Vibration suppressing method and device |
| JP5234772B2 (ja) * | 2008-10-28 | 2013-07-10 | オークマ株式会社 | 工作機械の振動抑制方法及び装置 |
| TWI465938B (zh) * | 2010-12-29 | 2014-12-21 | Univ Ishou | Speed estimation method and module, power estimation unit and method |
| EP2574947A1 (en) * | 2011-09-30 | 2013-04-03 | ABB Technology AG | A method of determining stationary signals for the diagnostics of an electromechanical system |
| US10295475B2 (en) | 2014-09-05 | 2019-05-21 | Rolls-Royce Corporation | Inspection of machined holes |
| EP3015866A1 (en) | 2014-10-30 | 2016-05-04 | ABB Technology AG | A method of automatic determination of rotational speed of a shaft in a rotating machine |
| US10444254B2 (en) | 2014-12-18 | 2019-10-15 | Sikorsky Aircraft Corporation | Virtual tachometers based on time series filtering |
| US10228669B2 (en) | 2015-05-27 | 2019-03-12 | Rolls-Royce Corporation | Machine tool monitoring |
| WO2017168226A1 (en) | 2016-03-30 | 2017-10-05 | 3D Signals Ltd. | Acoustic monitoring of machinery |
| CN106441936B (zh) * | 2016-10-24 | 2018-11-09 | 北京新能源汽车股份有限公司 | 一种判断汽车抖动的方法及装置 |
| US10839076B2 (en) | 2016-12-21 | 2020-11-17 | 3D Signals Ltd. | Detection of cyber machinery attacks |
| US10916259B2 (en) | 2019-01-06 | 2021-02-09 | 3D Signals Ltd. | Extracting overall equipment effectiveness by analysis of a vibro-acoustic signal |
| CN111776248B (zh) * | 2020-08-03 | 2022-02-18 | 广州极飞科技股份有限公司 | 震动测试方法、装置和飞行器 |
| JP7153749B2 (ja) * | 2021-01-28 | 2022-10-14 | 本田技研工業株式会社 | 回転数検出装置 |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5365787A (en) * | 1991-10-02 | 1994-11-22 | Monitoring Technology Corp. | Noninvasive method and apparatus for determining resonance information for rotating machinery components and for anticipating component failure from changes therein |
| DE4133269A1 (de) * | 1991-10-08 | 1993-04-15 | Bosch Gmbh Robert | Verfahren zur messung der drehzahl eines rotierenden teiles |
| US5392642A (en) * | 1993-06-30 | 1995-02-28 | Cummins Engine Company, Inc. | System for detection of low power in at least one cylinder of a multi-cylinder engine |
| DE19600640A1 (de) * | 1996-01-10 | 1997-07-17 | Wilo Gmbh | Sensor für eine Motorkreiselpumpe |
| GB9718026D0 (en) * | 1997-08-27 | 1997-10-29 | Secr Defence | Multi-component signal detection system |
| US6085121A (en) * | 1997-09-22 | 2000-07-04 | Design & Manufacturing Solutions, Inc. | Device and method for recommending dynamically preferred speeds for machining |
-
2000
- 2000-03-20 FI FI20000646A patent/FI20000646A0/fi unknown
-
2001
- 2001-03-19 AU AU4838801A patent/AU4838801A/xx active Pending
- 2001-03-19 AT AT01921392T patent/ATE303599T1/de not_active IP Right Cessation
- 2001-03-19 BR BR0109411-4A patent/BR0109411A/pt not_active IP Right Cessation
- 2001-03-19 EP EP01921392A patent/EP1285274B1/en not_active Expired - Lifetime
- 2001-03-19 DE DE60113101T patent/DE60113101T2/de not_active Expired - Fee Related
- 2001-03-19 CA CA002402441A patent/CA2402441A1/en not_active Abandoned
- 2001-03-19 WO PCT/FI2001/000271 patent/WO2001071362A1/en active IP Right Grant
- 2001-03-19 AU AU2001248388A patent/AU2001248388B2/en not_active Ceased
-
2002
- 2002-09-03 ZA ZA200207058A patent/ZA200207058B/en unknown
- 2002-09-04 US US10/233,627 patent/US6697759B2/en not_active Expired - Fee Related
- 2002-09-18 NO NO20024471A patent/NO20024471L/no not_active Application Discontinuation
Also Published As
| Publication number | Publication date |
|---|---|
| DE60113101T2 (de) | 2006-03-09 |
| WO2001071362A1 (en) | 2001-09-27 |
| CA2402441A1 (en) | 2001-09-27 |
| NO20024471D0 (no) | 2002-09-18 |
| EP1285274A1 (en) | 2003-02-26 |
| US6697759B2 (en) | 2004-02-24 |
| US20030036878A1 (en) | 2003-02-20 |
| BR0109411A (pt) | 2003-06-03 |
| AU2001248388B2 (en) | 2005-08-04 |
| EP1285274B1 (en) | 2005-08-31 |
| NO20024471L (no) | 2002-09-18 |
| DE60113101D1 (de) | 2005-10-06 |
| FI20000646A0 (fi) | 2000-03-20 |
| ATE303599T1 (de) | 2005-09-15 |
| AU4838801A (en) | 2001-10-03 |
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