DE602007009077D1 - Schaltung zur einstellung einer umrichter-impulsbreite und gerät zur messung exzessiver flussraten - Google Patents

Schaltung zur einstellung einer umrichter-impulsbreite und gerät zur messung exzessiver flussraten

Info

Publication number
DE602007009077D1
DE602007009077D1 DE602007009077T DE602007009077T DE602007009077D1 DE 602007009077 D1 DE602007009077 D1 DE 602007009077D1 DE 602007009077 T DE602007009077 T DE 602007009077T DE 602007009077 T DE602007009077 T DE 602007009077T DE 602007009077 D1 DE602007009077 D1 DE 602007009077D1
Authority
DE
Germany
Prior art keywords
rates
adjustment
circuit
pulse width
converter pulse
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.)
Active
Application number
DE602007009077T
Other languages
English (en)
Inventor
Kenji Washio
Takashi Hirose
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Oval Corp
Original Assignee
Oval Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Oval Corp filed Critical Oval Corp
Publication of DE602007009077D1 publication Critical patent/DE602007009077D1/de
Active legal-status Critical Current
Anticipated expiration legal-status Critical

Links

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
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/325—Means for detecting quantities used as proxy variables for swirl
    • G01F1/3287—Means for detecting quantities used as proxy variables for swirl circuits therefor
    • 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
    • G01F1/05—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects
    • G01F1/20—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow
    • G01F1/32—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters
    • G01F1/3209—Measuring the volume flow or mass flow of fluid or fluent solid material wherein the fluid passes through a meter in a continuous flow by using mechanical effects by detection of dynamic effects of the flow using swirl flowmeters using Karman vortices

Landscapes

  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Measuring Volume Flow (AREA)
DE602007009077T 2006-04-27 2007-03-26 Schaltung zur einstellung einer umrichter-impulsbreite und gerät zur messung exzessiver flussraten Active DE602007009077D1 (de)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
JP2006123883A JP4183095B2 (ja) 2006-04-27 2006-04-27 渦流量計
PCT/JP2007/057323 WO2007125725A1 (ja) 2006-04-27 2007-03-26 変換器用パルス幅整形回路及び渦流量計

Publications (1)

Publication Number Publication Date
DE602007009077D1 true DE602007009077D1 (de) 2010-10-21

Family

ID=38655260

Family Applications (1)

Application Number Title Priority Date Filing Date
DE602007009077T Active DE602007009077D1 (de) 2006-04-27 2007-03-26 Schaltung zur einstellung einer umrichter-impulsbreite und gerät zur messung exzessiver flussraten

Country Status (6)

Country Link
US (1) US7946185B2 (de)
EP (1) EP2009407B1 (de)
JP (1) JP4183095B2 (de)
CN (1) CN101432598B (de)
DE (1) DE602007009077D1 (de)
WO (1) WO2007125725A1 (de)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN102466500B (zh) * 2010-11-19 2013-06-19 中国电子科技集团公司第五十研究所 脉冲式涡街流量计的输出脉冲的检测、判断装置及方法
FR3002846B1 (fr) 2013-03-06 2016-03-25 Vitamfero Utilisation de souches attenuees de parasite pour la prevention et/ou le traitement de lesions oculaires associees a une infection par toxoplasma gondii
EP3309521B1 (de) * 2016-10-14 2020-07-29 Grundfos Holding A/S Verfahren zur bewertung eines frequenzspektrums

Family Cites Families (12)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
IT1114882B (it) 1976-06-22 1986-01-27 Du Pont Vanadato di bismuto monoclino gialprimula brillante,come pigmento e procedimenti per la sua preparazione
FR2384238A1 (fr) * 1977-03-18 1978-10-13 Schlumberger Compteurs Circuit electronique pour le traitement de signaux de capteurs debitmetriques
JPS5963520A (ja) * 1982-10-04 1984-04-11 Oval Eng Co Ltd 超音波式渦流量計
DE3789768T2 (de) * 1986-07-17 1994-12-01 Mitsubishi Electric Corp Vorrichtung zum messen der von einem motor eingenommenen luft.
JPS6381213A (ja) * 1986-09-25 1988-04-12 Nippon Denso Co Ltd カルマン渦流量計の信号処理回路
US4934194A (en) * 1988-03-24 1990-06-19 Yokogawa Electric Corporation Vortex flowmeter
JPH0654245B2 (ja) * 1988-04-19 1994-07-20 三菱電機株式会社 渦流量計
JP3144152B2 (ja) 1993-05-14 2001-03-12 富士電機株式会社 カルマン渦流量計
JPH0755518A (ja) 1993-08-19 1995-03-03 Fuji Electric Co Ltd カルマン渦流量計
JP2933016B2 (ja) * 1996-04-02 1999-08-09 横河電機株式会社 渦流量計
JP3765384B2 (ja) * 1999-09-14 2006-04-12 横河電機株式会社 渦流量計
JP3564111B2 (ja) 2002-03-29 2004-09-08 株式会社オーバル 誤出力防止装置及び該装置を備えた渦流量計

Also Published As

Publication number Publication date
EP2009407B1 (de) 2010-09-08
EP2009407A4 (de) 2009-04-22
JP2007298280A (ja) 2007-11-15
US7946185B2 (en) 2011-05-24
JP4183095B2 (ja) 2008-11-19
EP2009407A1 (de) 2008-12-31
CN101432598B (zh) 2013-01-02
WO2007125725A1 (ja) 2007-11-08
CN101432598A (zh) 2009-05-13
US20090078056A1 (en) 2009-03-26

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