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WO/1999/058936A1 |
The mass of particulate of an effluent gas (12) flowing in a stack (14) is directly measured with a mass measurement assembly (16) supported within the stack. The mass measurement assembly preferably includes an inertial mass measurement...
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WO/1999/056119A1 |
The invention relates to a dextran-coated surface on a support. The aim of the invention is to fix the dextran layer on the support with an intermediate layer. To this end, the link between the dextran and the support surface is mediated...
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WO/1999/049310A1 |
A method and apparatus are disclosed for analyzing the aggregate content of asphalt-aggregate compositions. The method includes placing a preheated, preweighed container carrying a sample of an asphalt-aggregate composition into a prehea...
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WO/1999/040397A1 |
The present invention offers a monolithic, piezoelectric crystal device which simultaneously (i) has several oscillators on the same crystal, the resonance frequencies of which can be selected in a flexible way; (ii) does not show any pr...
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WO/1999/039180A1 |
The invention relates to a method for determining the qualitative composition of the organic soil substance of mineral soils using thermogravimetry. A soil sample of constant weight is thermogravimetrically analysed in the usual way and ...
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WO/1999/032874A1 |
The invention concerns a method for measuring moisture content in powder and granular products, and dry matter content in liquid products, which consists in placing the product on a scoop (8) and weighing it; then in inserting the produc...
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WO/1999/031315A1 |
A method for separating cellulosic components from, and determining cellulosic component content of, plant material. Plant material and an electromagnetic active solvent, e.g. ethanol, are heated by means of electromagnetic radiation (e....
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WO/1999/030159A1 |
The present invention relates to a method for measuring of the interaction between at least one target molecule and at least one receptor molecule using a piezo-electric crystal micro balance, where at least one type of the molecules is ...
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WO/1999/028734A1 |
Provided are mass and heat flow measurement sensors comprising a microresonator, such as a quartz crystal microbalance; a heat flow sensor (c), such as an isothermal heat conduction calorimeter; and a heat sink (d) coupled thermally to t...
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WO/1999/028735A1 |
Provided is a mass and heat flow measurement apparatus comprising sample and reference microresonators (70, 80), such as sample and reference quartz crystal microbalances; sample and reference heat flow sensors (75, 85), such as sample a...
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WO/1999/024823A1 |
An array of electrodes (26a, 26b, and 26c) at the atomic or nano scale (nanoelectrodes) is built on a chip (22). The spatial distribution, height, width and electro-chemical composition of the nanoelectrodes is varied, such that protein-...
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WO/1999/018431A1 |
A method and apparatus for measuring properties of a liquid composition includes a mechanical resonator, such as a thickness shear mode resonator or a tuning fork resonator, connected to measurement circuit. The measurement circuit provi...
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WO/1999/017108A1 |
A device for measuring moisture concentration in a gas is provided which includes a sensing device capable of producing physical response to an energy input and having at least one surface coated with a metal hydroxide capable of adsorbi...
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WO/1999/002959A1 |
A porous container is provided which is suitable for the separation of insoluble from soluble materials. The container comprises a frame (2) supporting a mesh (4). A closure (8) engages with the frame (2) to seal the container. An orific...
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WO/1998/041820A1 |
By a method for measuring in real time properties and/or processes of one or more cells interacting with at least one surface of at least one piezoelectric crystal sensor (1), where one side of the crystal sensor forms a sensor surface, ...
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WO/1998/038488A1 |
The invention concerns a method for determining the temperature stability of a hydrocarbon mixture capable of phase separation by monitoring the weight variations of a gravimetric sensor part of which is immersed in said mixture. The met...
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WO/1998/038489A1 |
The invention concerns a method and device for determining the temperature stability of a water-hydrocarbon emulsion capable of phase separation by monitoring the weight variations of a gravimetric sensor part of which is immersed in sai...
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WO/1998/022795A1 |
An article of manufacture is provided including a substrate having an oxide surface layer and a layer of a cyclodextrin derivative chemically bonded to said substrate, said layer of a cyclodextrin derivative adapted for the inclusion of ...
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WO/1998/019156A1 |
The chemical and/or physico-chemical determination of the ageing of a motor oil is very expensive and requires measuring methods which cannot be carried out on board a motor vehicle. The determination of only one condition parameter, for...
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WO/1997/045717A1 |
Determining a characteristic or characteristics of a particular material such as the type, constitution, surface characteristics, or general flowability of the material. The material flows through a measuring cell (1) of constant volume ...
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WO/1997/037208A1 |
The invention refers to methods for assessing absorbent structures (10) for their fluid handling ability by using materials (110) having a moisture pick up ability which is very close to the one of human skin. This is achieved by using m...
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WO/1997/036178A1 |
Thickness-shear mode resonators which simultaneously measure mass deposition and fluid properties can be utilized to monitor petroleum processing, petrochemical and water treatment systems. Specialty chemical additive materials can be ac...
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WO/1997/028434A1 |
Apparatus (24) for determining the actual and proportional amounts of a volatile fluid (20) in a test sample is described. The test sample is stored in a sealed container (31) after being collected and kept in the sealed container throug...
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WO/1997/004314A2 |
Binding between two members of a recognition pair, e.g. antigen-antibody is determined by utilizing a probe comprising a piezoelectric crystal with electrodes on two opposite faces of the crystal. The crystal carries one or more metal pl...
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WO/1996/042011A1 |
There is disclosed a gas sensing device comprising a mass measurement gas sensor coated with at least one layer of semiconducting organic polymer and having both mass measurement and conductimetric transduction means.
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WO/1996/030729A1 |
The disclosed apparatus weighs a grown crystal (3) that is being pulled from melt thereof. The lower end of a rope (4) of known weight is connected to the crystal (3), while the upper end of the rope (4) is connected to the drum (6) of a...
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WO/1996/027125A1 |
The invention relates to a method for studying hygroscopic behaviour of a material wherein a sample of the material to be studied is weighed in the beginning of the test with a balance connected to a programmed processor; the sample is e...
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WO/1996/026435A1 |
A highly selective chemical sensor including an acoustic wave transducer and a sensitive layer of so-called "molecular imprint" material, i.e. a cross-linked macroporous material having cavities with a steric and functional arrangement s...
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WO/1996/014573A1 |
A sensor for oxidising agents contains an oxidisable aromatic polymer. The sensor consists of a piezoelectric crystal coated with a porous or non-porous layer that contains the oxidisable aromatic polymer.
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WO/1995/032427A1 |
A chemical sensor for measuring a change in the sensor mass relating to the interaction of a surface of the sensor with a solution comprises a crystal detector oscillator capable of providing a measurement signal based upon the resonant ...
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WO/1994/023279A1 |
A device for determining the binder content of bituminous construction material samples, in particular asphalts, has a furnace (14, 100) provided with a heating and a sample chamber (56, 58, 105, 112), as well as a weighing device (30, 1...
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WO/1994/018551A1 |
The invention consists in a gas sensing device employing a piezo-electric element coated with a sensor material which interacts with a range of gases selectively, the oscillation frequency of the piezo-electric element varying with the d...
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WO/1994/007121A1 |
A system for measuring particulate concentrations includes a mass sensing device (10). Mass sensing device (10) has a sensing chamber (16) with an intake port (12) and an output port (30). Sensing chamber (16) is divided into an upper po...
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WO/1994/006124A1 |
A method of estimating the crystal grain size of a nuclear fuel pellet, consisting of the steps of heating a plurality of kinds of UO2 powder in dry air at a predetermined temperature increasing rate and determining a rate of weight vari...
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WO/1994/003790A1 |
The invention relates to a method of determining the amount of waste deposited on filter cloths of the drum (1) of a drum filter rotatably suspended on a shaft (4). Recorded are the changes in the total mass (weight) of the drum (1) of t...
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WO/1994/002827A1 |
The invention covers a procedure for the production of useful amorphous test specimens, for the gravimetric analysis of oxygen or other indirect determination of oxygen absorption, through oxidation and melting of the test sample intende...
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WO/1993/022678A2 |
A method and apparatus are disclosed for identifying molecular structures within a sample substance using a monolithic array of test sites formed on a substrate upon which the sample substance is applied. Each test site includes probes f...
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WO/1992/015973A1 |
A reactive gas detection system provides early warning of gas emissions that often occur in developing fire conditions in environments such as telephone system central offices where halogenated substances, for example polyvinyl chloride ...
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WO/1992/013262A1 |
An apparatus, for determining the degree of tackiness of a surface of a body, comprises a closed chamber with inlet and outlet openings; a support for the body within the chamber; a fan for providing an airflow directed toward the surfac...
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WO/1992/009017A1 |
Method and apparatus for control of a process for processing goods (2) with liquids (3). The transport of liquid to and from the goods being controlled by the physical state of the process goods, which is sensed by sensors (6). At a pred...
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WO/1992/007266A1 |
The invention relates to a competitive binding assay technique for substances (e.g. small molecules having no antigenic determinant) which can serve as substrates for coenzyme-requiring enzymes. The technique involves contacting a liquid...
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WO/1991/017423A1 |
A method and apparatus for using a coated piezoelectric crystal to monitor and report corrosion in terms recognized as conforming to an industry standard is disclosed. The present invention provides a method of and system for monitoring ...
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WO/1991/005261A1 |
A biosensor detector method for detecting biological targets, using specific binding, or hybridization techniques coupled with enzymatic amplification and the mass sensing capability of a piezoelectric oscillator. An optical biosensor is...
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WO/1990/004772A1 |
Thin, flexible, waterproof liners (1) which have a high permeability to moisture vapor are inserted into the interior of a wearing apparel (2) and filled with water (4). The water may be heated to simulate body temperatures and to produc...
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WO/1990/004175A1 |
A test method is provided that comprises the testing for moisture vapor transmission of certain materials, such as clothing textiles. Especially with highly permeable materials, the method yields moisture vapor transmission test rates th...
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WO/1989/012813A1 |
An out-of-reactor method for screening to predict relative in-reactor hydriding behavior of zirconium-based materials is disclosed. Samples of zirconium-based materials autoclaved in a relatively concentrated (0.3 to 1.0 M) aqueous lithi...
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WO/1989/005977A1 |
A sensor for the analysis of physical and chemical changes in a test solution includes a glass tube (10) with an end covered by a membrane. The glass tube contains an internal Ag/AgCl electrode (24) in solution (22). The membrane (14) is...
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WO/1988/002856A1 |
An instrument for the chemical analysis of coal and other hydrocarbons combines TGA and FT-IR principles, and utilizes helium to carry the volatiles evolved by pyrolysis of the sample into the optical cell (10) of the FT-IR spectrometer....
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WO/1988/002480A1 |
An apparatus (10) for identifying molecular contamination in an environment includes a pair of crystals (12, 14) supported within supports (16, 18, 20) which are cantilevered to a base (44) by standoffs (36). Base is housed within an enc...
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WO/1987/002066A1 |
A system for detecting polynucleotide hybridization. A polynucleotide is immobilized on a surface of a piezoelectric crystal. The resonance frequency of the piezoelectric crystal is measured through means for determining the resonant fre...
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