BR0010409A - Processo e circuito para medir concentração de analito em um fluido, processo para fabricação de dispositivos quìmicos de microbalanço de cristal de quartzo complementares, e, circuito de amostragem de frequência média - Google Patents

Processo e circuito para medir concentração de analito em um fluido, processo para fabricação de dispositivos quìmicos de microbalanço de cristal de quartzo complementares, e, circuito de amostragem de frequência média

Info

Publication number
BR0010409A
BR0010409A BR0010409-4A BR0010409A BR0010409A BR 0010409 A BR0010409 A BR 0010409A BR 0010409 A BR0010409 A BR 0010409A BR 0010409 A BR0010409 A BR 0010409A
Authority
BR
Brazil
Prior art keywords
fluid
quartz crystal
circuit
crystal microbalance
analyte
Prior art date
Application number
BR0010409-4A
Other languages
English (en)
Other versions
BR0010409B1 (pt
Inventor
John P Dilger
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 BR0010409A publication Critical patent/BR0010409A/pt
Publication of BR0010409B1 publication Critical patent/BR0010409B1/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
    • G01N29/02—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
    • G01G—WEIGHING
    • G01G3/00—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances
    • G01G3/12—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing
    • G01G3/13—Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing having piezoelectric or piezoresistive properties
    • 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
    • G01N2291/022—Liquids
    • G01N2291/0222—Binary liquids
    • 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
    • G01N2291/02—Indexing codes associated with the analysed material
    • G01N2291/028—Material parameters
    • G01N2291/02809—Concentration of a compound, e.g. measured by a surface mass change
    • 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)
  • General Physics & Mathematics (AREA)
  • Biochemistry (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Analytical Chemistry (AREA)
  • Health & Medical Sciences (AREA)
  • General Health & Medical Sciences (AREA)
  • Acoustics & Sound (AREA)
  • Immunology (AREA)
  • Pathology (AREA)
  • Investigating Or Analyzing Materials By The Use Of Electric Means (AREA)
  • Investigating Or Analyzing Materials By The Use Of Ultrasonic Waves (AREA)

Abstract

"PROCESSO E CIRCUITO PARA MEDIR CONCENTRAçãO DE ANALITO EM UM FLUIDO, PROCESSO PARA FABRICAçãO DE DISPOSITIVOS QUìMICOS DE MICROBALANçO DE CRISTAL DE QUARTZO COMPLEMENTARES, E, CIRCUITO DE AMOSTRAGEM DE FREQuêNCIA MéDIA". A concentração de um analito em um fluido é medida por um dispositivo sensor de microbalanço de cristal de quartzo (10) no fluindo contendo uma concentração do analito. O dispositivo sensor mostra uma freq³ência ressonante representativa da concentração do analito no fluido. O dispositivo de referência de microbalanço de cristal de quartzo (16) tem uma freq³ência ressonante menor, por uma quantidade predeterminada, do que a freq³ência ressonante inicial do dispositivo sensor antes que o dispositivo sensor seja exposto ao analito. Um sinal é derivado com base na diferença das freq³ências ressonantes do sensor e do dispositivo de referência, e um primeiro contador (20) conta um número predeterminado de ciclos da freq³ência de sinal de diferença para derivar um período de tempo de amostra. Um segundo contador (24) conta ciclos de uma freq³ência de sinal de relógio durante o período de tempo de amostra para derivar uma contagem representativa da freq³ência de sinal de diferença.
BRPI0010409-4A 1999-05-10 2000-04-26 processo e circuito para medir concentraÇço de analito em um fluido e processo para fabricaÇço de dispositivos quÍmicos de microbalanÇa de cristal de quartzo complementares. BR0010409B1 (pt)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US09/310,008 US6222366B1 (en) 1999-05-10 1999-05-10 High frequency measuring circuit with inherent noise reduction for resonating chemical sensors
PCT/US2000/011137 WO2000068679A1 (en) 1999-05-10 2000-04-26 High frequency measuring circuit with inherent noise reduction for resonating chemical sensors

Publications (2)

Publication Number Publication Date
BR0010409A true BR0010409A (pt) 2002-02-13
BR0010409B1 BR0010409B1 (pt) 2013-03-05

Family

ID=23200602

Family Applications (1)

Application Number Title Priority Date Filing Date
BRPI0010409-4A BR0010409B1 (pt) 1999-05-10 2000-04-26 processo e circuito para medir concentraÇço de analito em um fluido e processo para fabricaÇço de dispositivos quÍmicos de microbalanÇa de cristal de quartzo complementares.

Country Status (7)

Country Link
US (1) US6222366B1 (pt)
EP (1) EP1181544B1 (pt)
JP (1) JP4476496B2 (pt)
BR (1) BR0010409B1 (pt)
CA (1) CA2373144C (pt)
DE (1) DE60042923D1 (pt)
WO (1) WO2000068679A1 (pt)

Families Citing this family (14)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US6654470B1 (en) * 1999-07-13 2003-11-25 Fisher-Rosemount Systems, Inc. Frequency warping for improving resonator signal-to-noise ratio
US6360585B1 (en) * 2000-03-06 2002-03-26 General Electric Company Method and apparatus for determining chemical properties
US6879936B2 (en) * 2002-01-09 2005-04-12 Fisher Controls International Llc Diagnostic apparatus and methods for a chemical detection system
JP2004205392A (ja) * 2002-12-26 2004-07-22 Japan Science & Technology Agency Ｑｃｍ装置及び試料測定方法
AT413767B (de) * 2003-03-20 2006-05-15 Avl List Gmbh Verfahren, vorrichtung und sensor zur bestimmung des redoxzustandes eines katalysatormaterials
JP4504222B2 (ja) * 2005-02-21 2010-07-14 矢崎総業株式会社 過電流検出装置
JP2006300742A (ja) * 2005-04-21 2006-11-02 Shizuoka Prefecture 発振周波数調整方式を利用した化学物質検出装置
CA2622383A1 (en) * 2005-09-22 2007-04-05 Nano-Proprietary, Inc. Hydrogen sensor
KR20090043967A (ko) * 2007-10-30 2009-05-07 삼성에스디아이 주식회사 연료전지 시스템
ES2333088B2 (es) 2009-06-23 2011-02-07 Universidad Politecnica De Valencia Metodo y dispositivo de nanogravimetria en medios fluidos basado en resonadores piezoelectricos.
GB2473635A (en) * 2009-09-18 2011-03-23 Cambridge Entpr Ltd Detecting concentration of target species
US9939412B2 (en) * 2013-02-06 2018-04-10 Empire Technology Development Llc Devices, systems, and methods for detecting odorants
CN104422630A (zh) * 2013-09-10 2015-03-18 河南圣玛斯光电科技有限公司 多通道石英晶体微天平阵列以及基于该阵列的测量系统
EP3715826B1 (en) * 2019-03-26 2024-03-06 Infineon Technologies AG Sensor device, particle sensor device and method for detecting a particulate matter density

Family Cites Families (9)

* 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
US3863495A (en) 1973-04-16 1975-02-04 Exxon Research Engineering Co Quartz crystal solute mass detector
US5501986A (en) 1988-04-06 1996-03-26 E. I. Du Pont De Nemours And Company Piezoelectric specific binding assay with mass amplified reagents
US5065140A (en) 1991-03-08 1991-11-12 Bell Communications Research, Inc. Early warning reactive gas detection system
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
US5918258A (en) * 1996-07-11 1999-06-29 Bowers; William D. High-sensitivity instrument to measure NVR in fluids
US5817921A (en) 1996-07-12 1998-10-06 Advanced Technology Materials, Inc. Piezoelectric enviromental fluid monitoring assembly and method
DE19746261A1 (de) * 1997-10-20 1999-04-29 Karlsruhe Forschzent Sensor

Also Published As

Publication number Publication date
WO2000068679A1 (en) 2000-11-16
EP1181544B1 (en) 2009-09-09
CA2373144A1 (en) 2000-11-16
US6222366B1 (en) 2001-04-24
EP1181544A1 (en) 2002-02-27
CA2373144C (en) 2007-09-25
DE60042923D1 (de) 2009-10-22
BR0010409B1 (pt) 2013-03-05
JP4476496B2 (ja) 2010-06-09
JP2002544479A (ja) 2002-12-24

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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 05/03/2013, OBSERVADAS AS CONDICOES LEGAIS.

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

Free format text: PATENTE EXTINTA EM 05/03/2023