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6668621 |
Viscosity measurement by means of damped resonant vibration normal to an approximate rigid plate
A brief but intense magnetic impulse generated by a coil 42 is used to excite resonant bending mode vibration in a magnetically permeable cantilevered beam 2 immersed in a fluid 22. A...
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6656280 |
Resist recycling apparatus and method for recycling the same
A resist recycling apparatus includes a viscosity control tank supplied with wasted resist liquid; a solvent tank that supplies a solvent to the viscosity control tank; a viscometer that measures...
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6602714 |
Viscosity and mass sensor for the high-throughput synthesis, screening and characterization of combinatorial libraries
Workstation, apparatuses and methods for the high-throughput synthesis, screening and/or characterization of combinatorial libraries. The invention relates to an array, which permits various...
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6591664 |
Method and arrangement for measuring characteristics of a non-newtonian fluid
To measure characteristics of a non-Newtonian fluid, preferably blood, a non-magnetic container is provided for receiving the fluid. A magnetic body is contained in the container, and a winding is...
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6543274 |
Sensor array and method for determining the density and viscosity of a liquid
A sensor arrangement for ascertaining the density and the viscosity of a liquid is proposed, having an arrangement comprising at least two basic sensor elements, at least one of which can be wetted...
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6523397 |
Curing characteristics measuring apparatus and measuring method
A curing characteristics measuring apparatus in which a sample chamber having a fixed surface and a rotation-vibrating drive surface is charged with a sample having a viscoelasticity, a torsional...
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6503568 |
Resist coating and recycling method
This invention provides a resist recycling apparatus and the method for resist recycling. A resist recycling apparatus includes a viscosity control tank being supplied with wasted resist liquid, a...
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6490911 |
Sensor device with fluid introduction holes
A sensor device includes a base body 12 having a vibrating portion 14, a piezoelectric element 20 fixed onto one surface of the vibrating portion 14 and having a piezoelectric film 22 and...
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6446494 |
Method and apparatus for determining the viscosity of a fluid in a container
An apparatus for determining the viscosity of a fluid in a container (such as a pipe). The apparatus comprises a mechanism for transmitting a signal into a fluid in a container. The transmitting...
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6401519 |
Systems and methods for characterization of materials and combinatorial libraries with mechanical oscillators
Methods and apparatus for screening diverse arrays of materials are provided. In one aspect, systems and methods are provided for imaging a library of materials using ultrasonic imaging techniques....
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6389877 |
Double-headed mass sensor and mass detection method
There is provided a double-headed mass sensor ( 25 ) in which between a first connecting plate ( 22 A) joined to a first diaphragm ( 21 A) at respective sides and a second connecting plate ( 22 B)...
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6378357 |
Method of fluid rheology characterization and apparatus therefor
There is disclosed herein a method and apparatus that use ultrasonic signals to measure rheological properties of a fluid flow such as, e.g., the consistency index K, the flow behavior index n′,...
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6370939 |
Apparatus and method for measurement of mass and heat flow changes
Provided are a measurement apparatus and a measurement system comprising sample and reference microresonators, such as sample and reference quartz crystal microbalances; sample and reference heat...
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6360610 |
Condition monitoring system and method for an interface
A system and a method are provided for monitoring the condition of an interface. Although not limited to this particular application, the system and method are particularly suited for monitoring...
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6357281 |
Methods and apparatus for detecting rheological properties of a material
To detect rheological material properties of a fluid, flowable or elastic material, the material is exposed to harmonic excitation with at least one fundamental and at least one parameter F is...
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6356848 |
Method and apparatus for measuring power output and for measuring tension and vibrational frequency of a elongate flexible member
The invention broadly provides a method and apparatus for measuring the power output of one powering a vehicle or other system driven by the elongate flexible member such as chain. In a preferred...
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6334356 |
Method for deciding the viscosity in the density measurement
This invention relates to a method for deciding an amount of correction factor for the viscosity of a fluid test sample needed for correcting a calculation or measurement of the density based on...
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6331163 |
Protective coating for bodily sensor
A device and method for fixation of a sensor in a bodily lumen, in which a sensor support is coupled to a fixation device, which is inserted into a bodily lumen. The fixation device is then secured...
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6314791 |
Surface acoustic wave sensor
In a sensor comprising a housing, through which a medium to be examined is conducted, the housing includes at least two passive building components capable of oscillating and oscillator circuits of...
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6311549 |
Micromechanical transient sensor for measuring viscosity and density of a fluid
A method and apparatus for measuring the viscosity and/or specific density of a fluid utilizes a microcantilever vibrated in the analyte fluid. The source of vibration is switched on and off and...
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6286361 |
Method and apparatus for remotely detecting pressure, force, temperature, density, vibration, viscosity and speed of sound in a fluid
An apparatus for detecting pressure in a hollow fan blade of a turbofan gas turbine engine comprises a magnetostriction transducer arranged in a sub chamber of the fan blade which is interconnected...
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6247354 |
Techniques for sensing the properties of fluids with resonators
A technique of determining the properties of a liquid. One or more resonators are exposed to air or another reference fluid of known properties. Oscillator circuits drive the resonators at at least...
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6189367 |
Apparatus and method for simultaneous measurement of mass and heat flow changes
Provided is a mass and heat flow measurement apparatus comprising sample and reference microresonators, such as sample and reference quartz crystal microbalances; sample and reference heat flow...
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6151956 |
Oil deterioration sensor
The present invention relates to a sensor for detecting the degree of deterioration of oil, and more particularly, provides an oil deterioration sensor which can detect the deterioration of oil...
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6112254 |
Method of detecting characteristics of liquids in pipes and pump controlling
In order to determine the nature of fluid passing through a pipe, for example whether material being pumped through a pipe is sludge or liquid phase, high frequency ultrasonic pulses from a...
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6083165 |
Passive sensor system using ultrasonic energy
A passive sensor system utilizing ultrasonic energy is disclosed. The passive sensor system includes at least one ultrasonically vibratable sensor and an ultrasonic activation and detection system....
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6044694 |
Resonator sensors employing piezoelectric benders for fluid property sensing
Resonator sensors namely piezoelectric benders are used for sensing fluid viscosity and density. The benders are inserted into a liquid to be monitored. An input voltage is applied to the bender...
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6023961 |
Micro-viscosity sensor and lubrication analysis system employing the same
A micro-viscosity sensor for measuring the viscosity of a lubricant. The micro-viscosity sensor including at least one finger-like element or an array of finger-like elements vertically extending...
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6018988 |
Method and device in a rheometer
A method for determining the rheological properties of a sample substance by the use of a rheometer, in which at least one element having magnetoelastic characteristics is received in said sample...
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6006589 |
Piezoelectric crystal microbalance device
A device and a process for measuring resonant frequency and dissipation factor of a piezoelectric resonator are presented. After exciting the resonator to oscillation, the driving power to the...
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5962795 |
Serviceable measuring device
A measuring device which maximizes the surface area of a blade transducer, which is swingably coupled to a probe member, and utilizes the force of the medium, such as a slurry, flowing in an...
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5886250 |
Pitch-catch only ultrasonic fluid densitometer
The present invention is an ultrasonic fluid densitometer that uses a material wedge and pitch-catch only ultrasonic transducers for transmitting and receiving ultrasonic signals internally...
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5877411 |
Fluid sensor
A fluid sensor includes a base body 2 having a vibrating portion 7, a piezoelectric element 3 which is fixed onto one surface of the vibrating portion 7 and has a piezoelectric film 4 and at least...
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5837885 |
Method and device for measuring the characteristics of an oscillating system
A resonator (1) is vibrating close to its resonance frequency. The vibration is excited by one or a first transducer (2) connected to an oscillator (11). The vibration is measured by the transducer...
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5792660 |
Comparative determinants of viscosity in body fluids obtained with probes providing increased sensitivity
This invention involves a method of analyzing a body fluid such as blood from a patient to determine whether or not there is a significant difference or change in the comparative determinants of...
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5760297 |
System for measuring acid concentration in an alkylation process
A system for measuring acid concentration in an alkylation process by repeatedly measuring the density, viscosity or velocity of sound through a sample over time as volatile organic compounds...
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5741971 |
Method for analyzing physical properties of materials
An apparatus and method for nondestructively measuring a sample of material to determine changes in dynamic Young's Modulus, density, static viscosity, compressive strength and expansion or...
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5700952 |
Time domain delay measurement apparatus and associated method
An embodiment of a sensing apparatus includes an ultrasonic delay sensor having a delay related to the sensed quantity; and a time domain analysis circuit for recirculating pulses through the...
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5686661 |
In-situ, real time viscosity measurement of molten materials with laser induced ultrasonics
This invention is directed to a method of remotely measuring the viscosity of molten materials such as melt glass, melt alloys, etc. during processing of the material.
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5668303 |
Sensor having a membrane as part of an electromechanical resonance circuit forming receiver and transmitter converter with interdigital structures spaced apart from one another
Sensor provided with a thin membrane, capable of storing electrical charges, whose surface is in contact with the chemical, biological, and/or other physical parameters to be measured. The membrane...
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5659129 |
Device for excitation of oscillations and determination of properties of various fluid media
The device comprises an oscillator with electrodes, which is mounted in a casing, means for oscillation excitation, for measuring, recording and processing of signals, and a computer, the...
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5596139 |
Resonant liquid detecting device
A vibration unit which includes a circular direction vibrator, a liquid detector resonated by the circular direction vibrator, and a vibration transmission member for connecting the circular...
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5557047 |
Method and apparatus for ultrasonic wave measurement
A method and apparatus for ultrasonic wave measurement wherein the time interval between like order echoes selected with respect to adjacent transmitted waves is controlled to be equal to an...
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5509298 |
Apparatus and method for measuring visco-elastic characteristics of a sample
Apparatus for measuring the fluid characteristics of a sample comprises a frame, at least a first stage mounted on the frame for rectilinear movement, first mounting means mounted on the first...
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5433112 |
Ultrasonic characterization of polymer melts under processing conditions
A method and apparatus for ultrasonically characterizing a polymer melt flowing in a predetermined direction between two opposed parallel surfaces spaced from one another to define a gap filled...
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5365778 |
Method for measuring liquid viscosity and ultrasonic viscometer
An ultrasonic viscometer and method for measuring fluid viscosity are provided. Ultrasonic shear and longitudinal waves are generated and coupled to the fluid. Reflections from the generated...
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5301540 |
Probe for measuring the viscosity of liquids
A probe for measuring the viscosity of small quantities of liquids is described. The probe for measuring the viscosity of liquids, including a housing having a surface, a first end point, and a...
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5271267 |
Method and apparatus for determining fluid properties from sonic/temperature fluid signature
A method and apparatus for non-intrusively identifying a property of a fluid in a container or pipe. The method includes propagating, from a transmitter, sonic energy into the fluid in the...
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5253533 |
Mass flow meter
A mass flow meter for flow media which works primarily on the Coriolis Principle has a pipe inlet, a straight pipe carrying the flow medium, a pipe outlet, an oscillation generator operating on the...
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5253513 |
Device for determining viscoelastic properties of liquids and a method for use
An apparatus and method for measuring the viscoelastic properties of thin liquid films. A liquid film is placed between and adjacent to two plates, and one of the two plates is oscillated in a...
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