PT940004E - Dispositivo para despistar a frequencia ressonante - Google Patents

Dispositivo para despistar a frequencia ressonante

Info

Publication number
PT940004E
PT940004E PT97945934T PT97945934T PT940004E PT 940004 E PT940004 E PT 940004E PT 97945934 T PT97945934 T PT 97945934T PT 97945934 T PT97945934 T PT 97945934T PT 940004 E PT940004 E PT 940004E
Authority
PT
Portugal
Prior art keywords
resonant
frequency
resonant structure
signal
variable
Prior art date
Application number
PT97945934T
Other languages
English (en)
Inventor
Anthony Lonsdale
Bryan Lonsdale
Original Assignee
Anthony Lonsdale
Bryan Lonsdale
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 Anthony Lonsdale, Bryan Lonsdale filed Critical Anthony Lonsdale
Publication of PT940004E publication Critical patent/PT940004E/pt

Links

Classifications

    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H03B5/30—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator
    • H03B5/32—Generation of oscillations using amplifier with regenerative feedback from output to input with frequency-determining element being electromechanical resonator being a piezoelectric resonator
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B5/00—Generation of oscillations using amplifier with regenerative feedback from output to input
    • H—ELECTRICITY
    • H03—ELECTRONIC CIRCUITRY
    • H03B—GENERATION OF OSCILLATIONS, DIRECTLY OR BY FREQUENCY-CHANGING, BY CIRCUITS EMPLOYING ACTIVE ELEMENTS WHICH OPERATE IN A NON-SWITCHING MANNER; GENERATION OF NOISE BY SUCH CIRCUITS
    • H03B2201/00—Aspects of oscillators relating to varying the frequency of the oscillations
    • H03B2201/02—Varying the frequency of the oscillations by electronic means
    • H03B2201/0208—Varying the frequency of the oscillations by electronic means the means being an element with a variable capacitance, e.g. capacitance diode

Landscapes

  • Measurement Of Mechanical Vibrations Or Ultrasonic Waves (AREA)
  • Measurement Of Resistance Or Impedance (AREA)
  • Measuring Fluid Pressure (AREA)
  • Aerials With Secondary Devices (AREA)
  • Input Circuits Of Receivers And Coupling Of Receivers And Audio Equipment (AREA)
  • General Induction Heating (AREA)
  • Inductance-Capacitance Distribution Constants And Capacitance-Resistance Oscillators (AREA)
  • Radar Systems Or Details Thereof (AREA)
  • Control Of Motors That Do Not Use Commutators (AREA)
  • Burglar Alarm Systems (AREA)
  • Transmitters (AREA)
  • Telephonic Communication Services (AREA)
  • Magnetic Resonance Imaging Apparatus (AREA)
  • Control Of High-Frequency Heating Circuits (AREA)
  • Measurement Of Length, Angles, Or The Like Using Electric Or Magnetic Means (AREA)
PT97945934T 1996-11-13 1997-11-13 Dispositivo para despistar a frequencia ressonante PT940004E (pt)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AUPO3590A AUPO359096A0 (en) 1996-11-13 1996-11-13 Apparatus for tracking resonant frequency

Publications (1)

Publication Number Publication Date
PT940004E true PT940004E (pt) 2003-02-28

Family

ID=3797901

Family Applications (1)

Application Number Title Priority Date Filing Date
PT97945934T PT940004E (pt) 1996-11-13 1997-11-13 Dispositivo para despistar a frequencia ressonante

Country Status (13)

Country Link
US (1) US6467351B2 (pt)
EP (1) EP0940004B1 (pt)
JP (1) JP4177460B2 (pt)
KR (1) KR20000053211A (pt)
CN (1) CN1188944C (pt)
AT (1) ATE224612T1 (pt)
AU (1) AUPO359096A0 (pt)
BR (1) BR9714969A (pt)
CA (1) CA2271479A1 (pt)
DE (1) DE69715651T2 (pt)
ES (1) ES2186002T3 (pt)
PT (1) PT940004E (pt)
WO (1) WO1998021818A1 (pt)

Families Citing this family (23)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB0208881D0 (en) * 2002-04-18 2002-05-29 Transense Technologies Plc Improved method for tracking a resonant frequency
US6854322B2 (en) * 2002-06-10 2005-02-15 The Procter & Gamble Company Directional coupler sensor
CA2562001C (en) 2004-04-26 2013-04-16 The Procter & Gamble Company Methods of assessing characteristics of fibrous substrates and treating fibrous substrates
US20080100429A1 (en) * 2006-11-01 2008-05-01 Lear Corporation Tire pressure monitoring (tpm) and remote keyless entry (rke) system for a vehicle
JP5326238B2 (ja) * 2007-08-07 2013-10-30 Ｔｄｋ株式会社 信号検出装置
JP5266728B2 (ja) * 2007-11-16 2013-08-21 Ｔｄｋ株式会社 信号抽出装置
US8085156B2 (en) * 2009-04-08 2011-12-27 Rosemount Inc. RF cavity-based process fluid sensor
CN102111153B (zh) * 2010-04-02 2013-02-27 中国科学院上海天文台 一种氢原子钟腔频自动调谐系统
JP5462698B2 (ja) * 2010-04-28 2014-04-02 公立大学法人会津大学 カンチレバーアレイを有する共振センサ装置
EP2630479B1 (en) 2010-10-20 2020-04-08 Qorvo US, Inc. Apparatus and method for measuring binding kinetics and concentration with a resonating sensor
FR2994777B1 (fr) * 2012-08-22 2014-08-22 Commissariat Energie Atomique Circuit de mesure de frequence de resonance de nano-resonateurs
CN105408747A (zh) 2013-05-23 2016-03-16 快速诊断技术公司 谐振器传感器模块系统和方法
WO2014190240A1 (en) 2013-05-23 2014-11-27 Rapid Diagnostek Interconnect device and module using same
JP6519384B2 (ja) * 2015-07-30 2019-05-29 株式会社デンソー Ｓａｗセンサの共振周波数検出装置
JP6547618B2 (ja) * 2015-12-24 2019-07-24 株式会社デンソー Ｓａｗセンサの共振周波数検出装置
CN106930964B (zh) * 2015-12-31 2018-10-12 华为技术有限公司 压电风扇固有频率测量方法和压电风扇
CN110221124B (zh) * 2016-12-23 2021-02-26 浙江大学台州研究院 基于扫频数据机制的石英晶片在线研磨的测控方法
CN107505281A (zh) * 2017-07-25 2017-12-22 西安交通大学 一种基于硅微谐振器的太赫兹波检测器
CN109633484B (zh) * 2018-12-13 2021-06-29 深圳市英威腾电气股份有限公司 一种中频电源的锁相方法、装置及设备
CN109633264B (zh) * 2018-12-13 2021-07-06 深圳市英威腾电气股份有限公司 一种中频电源的寻频方法、装置及设备
CN112968699B (zh) * 2021-02-04 2023-10-17 厦门骏微电子科技有限公司 一种震荡频率的自适应追频方法及超声波雾化器
CN114336761B (zh) * 2022-01-10 2023-09-15 深圳市天德普储能科技有限公司 一种微电网中提高电压质量的逆变器电压控制器设计方法
CN117439544B (zh) * 2023-12-20 2024-04-09 深圳市瀚强科技股份有限公司 工作频率调节方法、工作频率控制电路及射频电源设备

Family Cites Families (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB1451664A (en) * 1973-06-06 1976-10-06 Nat Res Dev Surface acoustic wave oscillators
US4062227A (en) * 1976-12-23 1977-12-13 The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration CW ultrasonic bolt tensioning monitor
US4100811A (en) * 1977-03-18 1978-07-18 United Technologies Corporation Differential surface acoustic wave transducer
FR2423916A1 (fr) * 1978-04-18 1979-11-16 Thomson Csf Oscillateur hyperfrequences a ondes acoustiques
US4760352A (en) * 1987-09-04 1988-07-26 R.F. Monolithics Coupled resonator phase shift oscillator
US5025222A (en) * 1989-07-07 1991-06-18 Phase Dynamics, Inc. System and method for monitoring substances and reactions
GB9004822D0 (en) 1990-03-03 1990-04-25 Lonsdale Anthony Method and apparatus for measuring torque
US5076094A (en) * 1990-10-03 1991-12-31 The United States Of America As Represented By The United States Department Of Energy Dual output acoustic wave sensor for molecular identification
US5374521A (en) * 1991-09-17 1994-12-20 Kipling; Arlin L. Acoustic reflection process for molecular sensing using a bulk acoustic wave quartz sensor
US5471147A (en) * 1991-10-03 1995-11-28 Caterpillar Inc. Apparatus and method for determining the linear position of a hydraulic cylinder
WO1994028417A1 (en) * 1993-06-01 1994-12-08 E.I. Du Pont De Nemours And Company Analyte-responsive ktp composition and method
US6166551A (en) * 1993-07-26 2000-12-26 Phase Dynamics Inc. Method for monitoring the state of microcrystalline change of solid materials
US5748002A (en) * 1996-01-26 1998-05-05 Phase Dynamics Inc. RF probe for montoring composition of substances
US5795993A (en) * 1995-11-29 1998-08-18 Sandia Corporation Acoustic-wave sensor for ambient monitoring of a photoresist-stripping agent
GB9618096D0 (en) * 1996-08-29 1996-10-09 Rolls Royce Plc Identification of resonant frequencies of vibration of rotating blades

Also Published As

Publication number Publication date
US6467351B2 (en) 2002-10-22
EP0940004A1 (en) 1999-09-08
JP4177460B2 (ja) 2008-11-05
WO1998021818A1 (en) 1998-05-22
JP2001505305A (ja) 2001-04-17
ES2186002T3 (es) 2003-05-01
ATE224612T1 (de) 2002-10-15
DE69715651D1 (de) 2002-10-24
DE69715651T2 (de) 2003-08-07
US20020100325A1 (en) 2002-08-01
BR9714969A (pt) 2001-09-11
CA2271479A1 (en) 1998-05-22
CN1188944C (zh) 2005-02-09
CN1244968A (zh) 2000-02-16
AUPO359096A0 (en) 1996-12-05
EP0940004B1 (en) 2002-09-18
KR20000053211A (ko) 2000-08-25

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