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| Number | Title | Issue Date |
| 8434351 | Sensing instrument A sensing instrument using a piezoelectric resonator changes natural frequency when coming into contact with a liquid to adsorb a substance to be sensed in the liquid. The sensing instrument includes an oscillator circuit supplying a piezoelectric resonator with osc... | 05/07/2013 |
| 8230724 | Measurement chamber and resonator The invention relates to an apparatus comprising a measurement chamber and a resonator, which can be integrated in the measurement chamber via a quick-action closure, for the liquid sensor system and for verification and measurement of the concentration of materials... | 07/31/2012 |
| 8196455 | Sensor A sensor element carrier for use in a mass-sensitive chemical sensor instrument comprises a base component and a lid component, the base component being adapted to receive, in use, a sensor, the signal generated by which depends on the mass of material adsorbed at a... | 06/12/2012 |
| 8176772 | Piezoelectric sensor and sensing instrument A piezoelectric sensor senses a substance to be measured in a sample solution, thereby conducting high-precision measurement. A pressing member has a solution storage space with a bottom surface being one surface of a piezoelectric resonator, and covering a recessed... | 05/15/2012 |
| 8176773 | Piezoelectric sensor and sensing instrument To provide a piezoelectric sensor in which a first electrode for measurement and a second electrode for reference are provided apart from each other on one surface side of a piezoelectric piece and a common electrode is provided on an opposite surface side so as to ... | 05/15/2012 |
| 7784331 | Acoustic determination of properties of reservoirs and of fluids contained therein The invention provides devices and methods for acoustically determining the properties of the contents of one or more reservoirs in a plurality of reservoirs. Each reservoir is adapted to contain a fluid. An acoustic radiation generator can be positioned in acoustic... | 08/31/2010 |
| 7762124 | Sensor for detecting substance in liquid A sensor for detecting a substance in liquid includes a sensing oscillation circuit and a reference oscillation circuit. The sensing oscillation circuit includes a sensing SAW element in which a reaction film arranged so as to cover at least one IDT and to react wit... | 07/27/2010 |
| 7426852 | Submersible meter for measuring a parameter of gas hold-up of a fluid A submersible meter is provided that measures the speed of sound propagating in an aerated fluid to determine any one of a plurality of parameters of the fluid, such as the gas holdup of the fluid (εb), the bubble size (db), the bubble surface... | 09/23/2008 |
| 7398685 | Measuring method using surface acoustic wave device, and surface acoustic wave device and biosensor device A measuring method using a surface acoustic wave device, with which even in a case where a target substance having a different viscosity is added to a buffer liquid on the surface acoustic wave device it is possible to measure a mass load accurately without sufferin... | 07/15/2008 |
| 7367240 | Apparatus and method for providing a flow measurement compensated for entrained gas A apparatus 10, 110 is provided that measures the speed of sound and/or vortical disturbances propagating in a fluid or mixture having entrained gas/air to determine the gas volume fraction of the flow 12 propagating through a pipes and compensating or... | 05/06/2008 |
| 7360417 | Fluid level detector A fluid detector for determining a presence of a fluid within a container includes a piezoelectric element that outputs a first ultrasonic signal in response to an input electrical signal and a lens with an upper portion and a lower portion. The piezoelectric elemen... | 04/22/2008 |
| 7359803 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10,70 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations X1-XN disposed axially along a pipe 14 for measuring at least one par... | 04/15/2008 |
| 7353695 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 04/08/2008 |
| 7347945 | Method and an installation for separating out multiphase effluents The invention relates to a method and to an installation for separating out an effluent made up of a multi-phase fluid mixture. According to the invention, said installation includes gravity separator means whose geometrical separation characteristics can be adjuste... | 03/25/2008 |
| 7334452 | Method for characterizing materials by using a mechanical resonator Methods for monitoring a fluid composition include placing a mechanical resonator in the fluid composition and oscillating the resonator. The resonator can be a tuning fork resonator having tines oscillated in opposite directions and in opposite phases. A variable f... | 02/26/2008 |
| 7331232 | Measurement method and biosensor apparatus using resonator A measurement method and a biosensor apparatus using a resonator with which it is not necessary to agitate a sample solution in a cell and even if the amount of the sample solution is very small the influence of pressure waves is greatly reduced and extremely easy a... | 02/19/2008 |
| 7331469 | Vibratory separator with automatically adjustable beach A vibratory separator having a basket for supporting screen apparatus for treating material, the basket pivotably mounted on a base, vibratory apparatus connected to the basket for vibrating the basket, the material forming a pool on the screen apparatus, and a beac... | 02/19/2008 |
| 7329039 | Systems and methods for determining a state of fluidization and/or a state of mixing Apparatus and methods are disclosed for treating a sample by selectively controlling sonic energy and/or selectively controlling the location of the sample relative to the sonic energy. ... | 02/12/2008 |
| 7322245 | Apparatus and method for measuring a fluid flowing in a pipe using acoustic pressures In industrial sensing applications at least one parameter of at least one fluid in a pipe 12 is measured using a spatial array of acoustic pressure sensors 14,16,18 placed at predetermined axial locations x1, x2, x3 along the pipe ... | 01/29/2008 |
| 7322243 | Acoustic wave etch rate sensor system An acoustic wave sensor system for monitoring the etch rate or etch ability of a selective material has an acoustic wave sensing device having a piezoelectric substrate and at least one electrode coupled to the substrate for generating a propagating acoustic wave an... | 01/29/2008 |
| 7323887 | Conductivity sensor and manufacturing method therefor A contacting-type conductivity sensor includes a plurality of electrodes disposed on a distal surface of a substrate. The substrate includes a plurality of vias through which electrical interconnection to the electrodes is accomplished. The conductivity sensor can e... | 01/29/2008 |
| 7278540 | Adjustable basket vibratory separator A vibratory separator having a base, a basket movably mounted on the base and for supporting screen apparatus for treating material introduced into the vibratory separator, the basket on a base and pivotable with respect thereto, vibratory apparatus connected to the... | 10/09/2007 |
| 7275421 | Apparatus and method for measuring parameters of a mixture having solid particles suspended in a fluid flowing in a pipe An apparatus 10 and method is provided that includes a spatial array of unsteady pressure sensors 15-18 placed at predetermined axial locations x1-xN disposed axially along a pipe 14 for measuring at least one parame... | 10/02/2007 |
| 7263874 | Methods and apparatus for determining properties of a fluid A method and system for determining properties of a fluid involves interacting the fluid with a standing wave in a first state to establish the standing wave in a second state, analyzing an electric signal associated with the standing wave to determine a characteris... | 09/04/2007 |
| 7260980 | Liquid cell and passivated probe for atomic force microscopy and chemical sensing The invention provides a liquid cell for an atomic force microscope. The liquid cell includes a liquid cell housing with an internal cavity to contain a fluid, a plurality of conductive feedthroughs traversing the liquid cell housing between the internal cavity and ... | 08/28/2007 |
| 7191639 | On-chip magnetic force actuation of microcantilevers by coplanar coils An on-chip coil is provided in a micromachined device for magnetic actuation of a nanoelectromechanical microcantilever. The novel geometry involves a three dimensional solenoid or planar coil carrying high current that generates a large enough magnetic field in its... | 03/20/2007 |
| 7193352 | Thin film bulk acoustic wave sensor suite Thin film bulk acoustic wave sensors with coatings of biological and chemical materials, multiple electrode depositions and a piezo-active thin film transducer layer are hosted on a substrate. The thin film bulk acoustic wave sensor suite, or T-BASS, produces a low-... | 03/20/2007 |
| 7191638 | Device for determining and/or monitoring at least one physical parameter and having a piezo-drive for oscillation-excitation and -detection A device for determining and/or monitoring at least one physical parameter of a medium, having at least one mechanically oscillatable unit and at least one drive-/receive unit. The drive-/receive unit excites the oscillatable unit to oscillate, or, it receives the o... | 03/20/2007 |
| 7186379 | Continuous real-time measurement of aqueous cyanide This invention provides a method and system capable of the continuous, real-time measurement of low concentrations of aqueous free cyanide (CN) using an on-line, flow through system. The system is based on the selective reactivity of cyanide anions and the character... | 03/06/2007 |
| 7181955 | Apparatus and method for measuring multi-Phase flows in pulp and paper industry applications The consistency of a pulp slurry in a pipe 12 is determined using a pair of effective sound speeds a1eff and a2eff of the fluid/pipe system. The pair of effective system sound speed measurements are taken at two sensing regions X1 | 02/27/2007 |
| 7165464 | Apparatus and method for providing a flow measurement compensated for entrained gas A apparatus 10,110 is provided that measures the speed of sound and/or vortical disturbances propagating in a fluid or mixture having entrained gas/air to determine the gas volume fraction of the flow 12 propagating through a pipes and compensating or ... | 01/23/2007 |
| 7140238 | Method for determining the composition of a fluid Method for determining the composition of a homogeneous fluid, for example a petroleum effluent on flow, an emulsion consisting of water and oil, or a foam consisting of oil and gas. The attenuation and the phase shift of microwave beams that have traversed a... | 11/28/2006 |
| 7112971 | Method and apparatus for determining the moisture content of a material In a method and apparatus for determining the moisture content of a material with a measuring line extending through the material and having a proximal end connected to a signal generator for supplying a pulse signal to the measuring line, which pulse signal is refl... | 09/26/2006 |
| 7104117 | Device and method for determining the quality of a medium, particularly of a lubricant and/or coolant A device (1) for determining the qualify of a medium, particularly of a lubricant and/or cutting oil, includes a number of sensors (3, 4, 5, 6, 7) that emit electric output signals according to the respective sensor-specific input variables. One sensor... | 09/12/2006 |
| 7104131 | Ultrasonic pulser-receiver Ultrasonic pulser-receiver circuitry, for use with an ultrasonic transducer, the circuitry comprising a circuit board; ultrasonic pulser circuitry supported by the circuit board and configured to be coupled to an ultrasonic transducer and to cause the ultrasonic tra... | 09/12/2006 |
| 7096719 | Apparatus for measuring parameters of a flowing multiphase mixture An apparatus 10 is provided that measures the speed of sound propagating in a multiphase mixture to determine parameters, such as mixture quality, particle size, vapor/mass ratio, liquid/vapor ratio, mass flow rate, enthalpy and volumetric flow rate of the fl... | 08/29/2006 |
| 7073370 | Method and apparatus for characterizing materials by using a mechanical resonator A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a cantilever, connected to a measurement circuit. The mechanical resonator can be covered with a coating to impart additional special detection propertie... | 07/11/2006 |
| 7059171 | Fluid density measurement using acoustic pressures for industrial sensing applications The density of at least one fluid in a pipe 12 is determined using a pair of effective sound speeds a1eff and a2eff of the fluid/pipe system. The pair of effective system sound speed measurements are taken at two sensing regions X1, ... | 06/13/2006 |
| 7059172 | Phase flow measurement in pipes using a density meter The present invention discloses an apparatus for determining the density and the phase fraction of a fluid flowing in a conduit. The apparatus comprises a fiber optic density meter situated along the conduit that provides a signal indicative of the density of the fl... | 06/13/2006 |
| 7006580 | Method for controlling a data transmission pre-emphasis unit and a data transmission system employing the method In a pre-emphasis unit device which transmits signals along a transmission line with a frequency-dependent pre-emphasis, the frequency response of the pre-emphasis unit is varied to match characteristics of the transmission line. Initially the pre-emphasis unit is s... | 02/28/2006 |
