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公开(公告)号:WO2022186453A1
公开(公告)日:2022-09-09
申请号:PCT/KR2021/017590
申请日:2021-11-26
申请人: 재단법인대구경북과학기술원
IPC分类号: G01N29/02 , G01N29/036 , G01N29/24 , G01N29/32 , G01N29/44
摘要: 본 발명은 표면 탄성파 기반 물질 계측 장치, 물질 계측 시스템 및 물질 계측 방법에 관한 것으로, 다중 공진파를 발생시킴으로서 온도 및 주파수 의존적 물질에 대한 고유의 다양한 물성을 정확하고 신뢰성있게 측정할 수 있는 기술에 관한 것이다.
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公开(公告)号:WO2022129176A1
公开(公告)日:2022-06-23
申请号:PCT/EP2021/085901
申请日:2021-12-15
申请人: NANOSURF AG
IPC分类号: G01N29/036 , G01N29/34
摘要: Die Erfindung betrifft eine Vorrichtung zum Bestimmen von mechanischen Eigenschaften, insbesondere von rheologischen Eigenschaften, eines Systems, mit einem schwingbaren Kontaktelement und mit einem weiteren Kontaktelement, bei welcher die beiden Kontaktelemente derart zueinander angeordnet sind, dass sie mittels des Systems miteinander wirkverbindbar sind, mit einer Einrichtung zum photothermischen Anregen des schwingbaren Kontaktelements, und mit einer Einrichtung zum Detektieren von Schwingungen an dem angeregten schwingbaren Kontaktelement, wobei sowohl die Einrichtung zum Anregen als auch die Einrichtung zum Detektieren mit dem schwingbaren Kontaktelement wechselwirkt, wobei das schwingbare Kontaktelement bzw. das System mit unterschiedlichen Frequenzen und/oder mit einem oder mehreren Frequenzdurchläufen zum Schwingen anregbar sind.
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公开(公告)号:WO2022120273A1
公开(公告)日:2022-06-09
申请号:PCT/US2021/062010
申请日:2021-12-06
IPC分类号: G01N29/02 , G01N29/024 , G01N29/028 , G01N29/032 , G01N29/036 , G01N29/14
摘要: A multi-path acoustic signal apparatus, system, and apparatus for use in material detection are provided. The apparatus has a plurality of acoustic sensors positioned along a first portion of a fluid container. At least one acoustic signal is transmitted into the fluid container by each of the plurality of acoustic sensors. At least one additional acoustic sensor is positioned along a second portion of the fluid container, wherein the second portion is substantially opposite the first portion. The at least one additional acoustic sensor receives at least a portion of the acoustic signals from the plurality of acoustic sensors. A reflected acoustic signal is generated from an impedance barrier between the fluid container and a fluid therein. A characteristic of a material of the fluid container and/or the fluid therein are determined.
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公开(公告)号:WO2022112163A1
公开(公告)日:2022-06-02
申请号:PCT/EP2021/082481
申请日:2021-11-22
IPC分类号: G01H13/00 , G01N21/17 , G01N29/036 , G01N29/24 , G01N29/32 , G01N29/024 , G01N29/032 , G01N29/34 , G01N29/46
摘要: Damit die Resonanzfrequenz eines akustischen Resonators möglichst einfach bestimmt wer- den kann wird erfindungsgemäß ein Verfahren mit folgenden Schritten vorgeschlagen: (a) Ge- mäß einer ersten Alternative, Bereitstellen eines akustischen Resonators (5), wobei der akustische Resonator (5) ein Absorptionselement (7) mit einem Oberflächenabschnitt (9) aufweist, Bereitstellen eines Probenfluides oder eines das Probenfluid aufweisenden Fluidgemisches, sodass der akustische Resonator mit dem Probenfluid oder dem das Probenfluid aufweisenden Fluidgemisch gefüllt ist, wobei der Oberflächenabschnitt (9) des Absorptionselements (7) in Kontakt mit dem Probenfluid oder dem das Probenfluid aufweisenden Fluidgemisch steht, oder gemäß einer zweiten Alternative, Bereitstellen eines akustischen Resonators (5), Bereitstellen eines ein Probenfluid aufweisenden Fluidgemisches, sodass der akustische Resonator mit dem Fluidgemisch gefüllt ist, wobei das Fluidgemisch zusätzlich zum Probenfluid zumindest ein Absorptionsfluid oder einen oder mehrere Absorptionspartikel aufweist; (b) Gemäß der ersten Alternative, Bestrahlen des Oberflächenabschnitts (9) des Absorptionselements mit einer ersten elektromagnetischen Strahlung (1), sodass das Absorptionselement (7) im Bereich des Oberflächenabschnitts (9) die erste elektromagnetische Strahlung (1) zumindest teilweise absorbiert, oder gemäß der zweiten Alternative, Bestrahlen des Fluidgemisches mit einer ersten elektromagnetischen Strahlung (1), sodass das Absorptionsfluid oder die Absorptionspartikel die erste elektromagnetische Strahlung zumindest teilweise absorbieren, sodass bei beiden Alternativen durch die Absorption Druckenergie in dem Probenfluid oder dem das Probenfluid aufweisenden Fluidgemisch erzeugt wird, wobei die erste elektromagnetische Strahlung (1) mit einer Modulationsfrequenz amplituden- oder frequenzmoduliert ist; (c) Messen eines akustischen Antwortsignals (10) des akustischen Resonators (5), das durch die in Schritt b) erfolgte Absorption der ersten elektromagnetischen Strahlung (1) erzeugt wird; (d) Bestimmen zumindest einer Amplitude (A) oder Phase (φ) des akustischen Antwortsignals (10), das die Modulationsfrequenz der ersten elektromagnetischen Strahlung (1) aufweist.
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公开(公告)号:WO2022066011A1
公开(公告)日:2022-03-31
申请号:PCT/NL2021/050575
申请日:2021-09-23
发明人: OSWALD, Felix
IPC分类号: G01N29/036 , G01H13/00 , G01N29/22 , G01N29/44
摘要: A method is provided comprising the steps of: providing a sample holder comprising a holding space for holding a sample comprising one or more particles in a fluid medium, wherein the sample holder comprises a wall providing a wall surface portion in the holding space, and providing a signal generator (13) for generating an acoustic wave in the sample holder (3); providing using the signal generator a driving signal to the sample holder generating a standing longitudinal acoustic wave in the sample holder comprising at least one of a node (N) and an antinode in the holding space (30), the signal having a signal frequency, a signal amplitude and a signal power; and determining an acoustic resonance frequency characteristic of the sample holder for the acoustic wave. The method further comprises the steps of: providing a sample comprising one or more particles in a fluid medium in the holding space, in particular being in contact with the wall surface portion; determining a variation in the resonance frequency characteristic of the sample holder; determining on the basis of the variation a difference in position of one or more of the particles with respect to at least one of a node of the acoustic wave, an antinode of the acoustic wave and the wall surface portion, in particular at least one of contact, attachment and adhesion of one or more of the particles to the wall surface portion.
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公开(公告)号:WO2022064197A1
公开(公告)日:2022-03-31
申请号:PCT/GB2021/052468
申请日:2021-09-23
发明人: SPECHT, Jan , COLE, Marina , ESFAHANI, Siavash , GARDNER, Julian
IPC分类号: G01N29/036 , G01N15/06
摘要: A device for particle sensing (1) is disclosed. The device includes a sensor (2) including a bulk acoustic wave resonator (4) having a resonant frequency, an acoustic mirror (5) 5 arranged to support the resonator, and a heater (9) in thermal communication with the resonator such that a resonator temperature is based on a heater temperature. The device also includes circuitry (3) connected to the sensor. The circuitry comprises a driver (17) configured to drive the heater with a driver signal having a constant periodic cycle, and an oscillator (18) configured to generate an output signal indicative of the 10 resonant frequency. The resonant frequency is modulated by the resonator temperature.
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公开(公告)号:WO2022055636A1
公开(公告)日:2022-03-17
申请号:PCT/US2021/044334
申请日:2021-08-03
申请人: RAYTHEON COMPANY
IPC分类号: G01N29/02 , G01N29/036
摘要: An apparatus includes a surface acoustic wave (SAW) sensor (100). The SAW sensor includes a piezoelectric substrate (102). The SAW sensor also includes first and second interdigitating transistors (104a-104b) over the piezoelectric substrate. The first interdigitating transistor (104a) is configured to convert an input electrical signal into an acoustic wave. The second interdigitating transistor (104b) is configured to convert the acoustic wave into an output electrical signal. The piezoelectric substrate is configured to transport the acoustic wave. The SAW sensor further includes a detection layer (116) over the piezoelectric substrate and positioned at least partially between the first and second interdigitating transistors. The detection layer includes (i) antibodies (302) configured to bind to one or more biological analytes and (ii) a hydrogel layer (306) over the antibodies.
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公开(公告)号:WO2022010356A1
公开(公告)日:2022-01-13
申请号:PCT/NL2021/050440
申请日:2021-07-12
IPC分类号: G01N29/036 , B01L3/00 , G01N29/22 , B01L2200/0652 , B01L2200/0668 , B01L2300/0816 , B01L2400/0436 , B01L2400/0439 , B01L3/502715 , B01L3/502761 , G01N15/1463 , G01N2015/1075 , G01N2291/02466 , G01N2291/02809 , G01N29/222
摘要: The disclosure relates to methods and systems for manipulating a particle, in particular for studying small particles and/or biological cellular bodies. A disclosed method comprises the steps of: providing a sample holder (3) comprising a holding space (5) for holding a sample comprising a particle (9) in a fluid medium (11); providing a driving signal, having a signal frequency, a signal amplitude and a signal power, to the sample holder generating an acoustic wave in the sample holder (3) for applying an acoustic force to the particle (9), the wave having a frequency; determining an acoustic resonance frequency of the sample holder and determining a quality factor for the sample holder with respect to the resonance frequency. An associated system (1) is also disclosed.
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公开(公告)号:WO2021127521A1
公开(公告)日:2021-06-24
申请号:PCT/US2020/066146
申请日:2020-12-18
申请人: QORVO US, INC.
发明人: WEBSTER, James
IPC分类号: G01N29/036 , G01L1/16
摘要: A solid mount resonator sensor has a substrate. An anti-reflector stack is disposed proximate the substrate. The anti-reflector stack includes one or more acoustic interference layers. A first electrode is disposed proximate the anti-reflector stack. A second electrode having a first surface facing towards the first electrode and an opposing second surface facing away from the first electrode. A substantially quarter-wave piezoelectric material layer is disposed between the first and second electrodes.
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公开(公告)号:WO2021053410A1
公开(公告)日:2021-03-25
申请号:PCT/IB2020/056597
申请日:2020-07-14
申请人: AMG TECHNOLOGY LTD
发明人: STAVROV, Vladimir
摘要: The invention relates to a device for simultaneous determining the physical parameters, chemical composition and concentrations of the components of a gas flow and will find application in industry and everyday life, e.g. in HVAC systems to determine air quality or monitor other gas mixtures. By means of the device of the invention, more efficient monitoring of gases is carried out and comfort and safety are ensured. The device (1) consists of a body (3) in which a measuring chamber (11) is formed in which the sensors (12) are placed, having microcantilevers (13) with particular selectivity and sensitivity. It contains means for said simultaneous determination, each of which comprises selected microcantilevers (13) and at least one actuating element (14, 17), arranged in the common measuring chamber (11).
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