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BR0012394A - Processo para reduzir efeitos de ruìdo inarmÈnico que distorce um sinal de sensor de onda acústica em volume, e, circuito sensor para uso na medição de concentrações de um analito em um fluido - Google Patents

Processo para reduzir efeitos de ruìdo inarmÈnico que distorce um sinal de sensor de onda acústica em volume, e, circuito sensor para uso na medição de concentrações de um analito em um fluido

Info

Publication number
BR0012394A
BR0012394A BR0012394-3A BR0012394A BR0012394A BR 0012394 A BR0012394 A BR 0012394A BR 0012394 A BR0012394 A BR 0012394A BR 0012394 A BR0012394 A BR 0012394A
Authority
BR
Brazil
Prior art keywords
sensor
fluid
analyte
circuit
noise
Prior art date
Application number
BR0012394-3A
Other languages
English (en)
Other versions
BR0012394B1 (pt
Inventor
John Dilger
Guojun Liu
Original Assignee
Fisher Controls Int
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 Fisher Controls Int filed Critical Fisher Controls Int
Publication of BR0012394A publication Critical patent/BR0012394A/pt
Publication of BR0012394B1 publication Critical patent/BR0012394B1/pt

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/02—Analysing fluids
    • G01N29/022—Fluid sensors based on microsensors, e.g. quartz crystal-microbalance [QCM], surface acoustic wave [SAW] devices, tuning forks, cantilevers, flexural plate wave [FPW] devices
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/34—Generating the ultrasonic, sonic or infrasonic waves, e.g. electronic circuits specially adapted therefor
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N29/00—Investigating or analysing materials by the use of ultrasonic, sonic or infrasonic waves; Visualisation of the interior of objects by transmitting ultrasonic or sonic waves through the object
    • G01N29/36—Detecting the response signal, e.g. electronic circuits specially adapted therefor
    • G01N29/42—Detecting the response signal, e.g. electronic circuits specially adapted therefor by frequency filtering or by tuning to resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/01—Indexing codes associated with the measuring variable
    • G01N2291/014—Resonance or resonant frequency
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/025—Change of phase or condition
    • G01N2291/0256—Adsorption, desorption, surface mass change, e.g. on biosensors
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0422—Shear waves, transverse waves, horizontally polarised waves
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N2291/00—Indexing codes associated with group G01N29/00
    • G01N2291/04—Wave modes and trajectories
    • G01N2291/042—Wave modes
    • G01N2291/0426—Bulk waves, e.g. quartz crystal microbalance, torsional waves

Landscapes

  • Physics & Mathematics (AREA)
  • Health & Medical Sciences (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Biochemistry (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Acoustics & Sound (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Oscillators With Electromechanical Resonators (AREA)
  • Investigating Or Analysing Materials By Optical Means (AREA)

Abstract

"PROCESSO PARA REDUZIR EFEITOS DE RUìDO INARMÈNICO QUE DISTORCE UM SINAL DE SENSOR DE ONDA ACúSTICA EM VOLUME, E, CIRCUITO SENSOR PARA USO NA MEDIçãO DE CONCENTRAçõES DE UM ANALITO EM UM FLUIDO". Um circuito sensor para uso na medição de concentrações de um analito em um fluido é constituído de um sensor BAW, um capacitor variável em tensão conectado ao sensor, uma entrada que fornece uma tensão em cc de deformação de polarização ao capacitor variável em tensão, e um circuito do oscilador ressonante. O circuito do oscilador ressonante detecta a freq³ência fundamental do sensor e produz uma freq³ência de sinal ressonante. A tensão em cc de deformação aplicada ao capacitor variável em tensão, deforma a freq³ência de ressonância de circuito, afastando-a de ruído inarmónico.
BRPI0012394-3A 1999-07-13 2000-07-10 processo para reduzir efeitos de ruìdo inarmÈnico que distorce um sinal de sensor de onda acústica em volume, e, circuito sensor para uso na medição de concentrações de um analito em um fluido. BR0012394B1 (pt)

Applications Claiming Priority (3)

Application Number Priority Date Filing Date Title
US09/352,730 US6654470B1 (en) 1999-07-13 1999-07-13 Frequency warping for improving resonator signal-to-noise ratio
US09/352,730 1999-07-13
PCT/US2000/018793 WO2001004621A1 (en) 1999-07-13 2000-07-10 Frequency warping for improving resonator signal-to-noise ratio

Publications (2)

Publication Number Publication Date
BR0012394A true BR0012394A (pt) 2002-03-12
BR0012394B1 BR0012394B1 (pt) 2012-11-27

Family

ID=23386243

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0012394-3A BR0012394B1 (pt) 1999-07-13 2000-07-10 processo para reduzir efeitos de ruìdo inarmÈnico que distorce um sinal de sensor de onda acústica em volume, e, circuito sensor para uso na medição de concentrações de um analito em um fluido.

Country Status (10)

Country Link
US (1) US6654470B1 (pt)
EP (1) EP1194771B1 (pt)
JP (1) JP4773656B2 (pt)
CN (1) CN1172185C (pt)
AU (1) AU6083300A (pt)
BR (1) BR0012394B1 (pt)
CA (1) CA2378759C (pt)
DE (1) DE60014090T2 (pt)
MX (1) MXPA01013214A (pt)
WO (1) WO2001004621A1 (pt)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003168926A (ja) * 2001-11-29 2003-06-13 Nippon Dempa Kogyo Co Ltd 電圧制御圧電発振器
CN100495008C (zh) * 2003-06-18 2009-06-03 中山市泰威技术开发有限公司 压电体声波传感器无源式阵列及其生物芯片
KR100828128B1 (ko) * 2006-07-20 2008-05-09 에이디반도체(주) 시분할 복수 주파수를 이용하는 정전용량 검출방법 및검출장치
JP5505596B2 (ja) * 2008-06-18 2014-05-28 セイコーエプソン株式会社 共振回路、発振回路、フィルタ回路及び電子装置
US9746442B2 (en) 2014-03-30 2017-08-29 International Business Machines Corporation Switched-capacitor biosensor device
WO2020131406A1 (en) * 2018-12-19 2020-06-25 Abbott Diabetes Care Inc. Systems, devices, and methods for rf detection of analyte sensor measurements

Family Cites Families (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3260104A (en) * 1962-10-22 1966-07-12 Exxon Research Engineering Co Apparatus for fluid analysis
GB1483735A (en) * 1973-11-09 1977-08-24 Secr Defence Acoustic wave oscillator
US4361026A (en) 1980-06-24 1982-11-30 Muller Richard S Method and apparatus for sensing fluids using surface acoustic waves
US5212988A (en) 1988-02-29 1993-05-25 The Reagents Of The University Of California Plate-mode ultrasonic structure including a gel
US4905701A (en) 1988-06-15 1990-03-06 National Research Development Corporation Apparatus and method for detecting small changes in attached mass of piezoelectric devices used as sensors
US5229735A (en) * 1992-03-30 1993-07-20 Macrovision Corporation Wide frequency deviation voltage controlled crystal oscillator having plural parallel crystals
JPH06265459A (ja) * 1993-03-15 1994-09-22 Toshiba Corp 分解ガス検出装置
JP3354217B2 (ja) 1993-07-30 2002-12-09 柴田科学株式会社 気体中の塵埃粒子の質量濃度を測定する方法
US5705399A (en) * 1994-05-20 1998-01-06 The Cooper Union For Advancement Of Science And Art Sensor and method for detecting predetermined chemical species in solution
JPH09191216A (ja) * 1996-01-09 1997-07-22 Sony Corp セラミック発振器、セラミックｆｍ変調器、セラミック基準発振器を用いたｐｌｌ回路及びセラミック基準発振器を用いたｐｌｌ型ｆｍ変調器
JPH1028016A (ja) * 1996-07-09 1998-01-27 Murata Mfg Co Ltd 圧電体基準発振器
US6222366B1 (en) * 1999-05-10 2001-04-24 Fisher Controls International, Inc. High frequency measuring circuit with inherent noise reduction for resonating chemical sensors
US6237397B1 (en) * 1999-10-06 2001-05-29 Iowa State University Research Foundation, Inc. Chemical sensor and coating for same

Also Published As

Publication number Publication date
JP4773656B2 (ja) 2011-09-14
JP2003504620A (ja) 2003-02-04
AU6083300A (en) 2001-01-30
WO2001004621A1 (en) 2001-01-18
EP1194771B1 (en) 2004-09-22
CN1361864A (zh) 2002-07-31
CA2378759A1 (en) 2001-01-18
MXPA01013214A (es) 2002-06-21
BR0012394B1 (pt) 2012-11-27
DE60014090D1 (de) 2004-10-28
EP1194771A1 (en) 2002-04-10
CN1172185C (zh) 2004-10-20
CA2378759C (en) 2007-04-17
DE60014090T2 (de) 2005-02-03
US6654470B1 (en) 2003-11-25

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Legal Events

Date Code Title Description
B25D Requested change of name of applicant approved
B25G Requested change of headquarter approved
B06A Patent application procedure suspended [chapter 6.1 patent gazette]
B09A Decision: intention to grant [chapter 9.1 patent gazette]
B16A Patent or certificate of addition of invention granted [chapter 16.1 patent gazette]

Free format text: PRAZO DE VALIDADE: 10 (DEZ) ANOS CONTADOS A PARTIR DE 27/11/2012, MEDIANTE O RECOLHIMENTO DA TAXA QUINQUENAL DE MANUTENCAO (ARTIGOS 119 E 120 DA LPI) E OBSERVADAS AS DEMAIS CONDICOES LEGAIS. - NA LINHA 7 DA PAGINA 1 DO QUADRO REIVINDICATORIO, ONDE SE LE: "...SENSOR (!8)..."; LEIA-SE: "...SENSOR (18)..."

B21A Patent or certificate of addition expired [chapter 21.1 patent gazette]

Free format text: PATENTE EXTINTA EM 27.11.2022