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WO/2002/063253A1 |
A weighing apparatus which includes a SAW oscillator (120b, 122b) and a 'push oscillator' (216, 218, 220) to force the SAW oscillator into a desired mode of operation. The device adjusts to temperature by using a temperature sensing SAW ...
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WO/2002/063264A2 |
A resonant sensor for determining structural property changes, in particular for detecting the presence of chemical or biological species, comprises a structure (2) mounted to be capable of resonating and having a cyclically symmetrical ...
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WO/2002/061396A1 |
An oscillator (2) capable of oscillating signals of specified frequencies in dipped state in liquid, comprising a diaphragm of piezoelectric material (9) having a front surface (9a), a rear surface (9b), and a side surface (9c), a first ...
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WO2002031469B1 |
The mass of particulate of an effluent gas (12) flowing in a stack (14) is measured with a mass measurement assembly (16) in which sampling is isokinetically controlled by determining in real-time the molecular weight of the effluent gas...
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WO/2002/043985A2 |
Weight sensor assemblies for measuring weight on a vehicle seat are mounted at the connecting points between a seat bottom frame and a seat mounting member. The weight sensor assemblies (32) each include a beam member (34) having a benda...
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WO/2002/037066A1 |
The invention relates to dealing with an effect of ambient conditions on operation of an installation in response to a physical action. By way of example, when the installation is a measuring installation, master circuitry (12) is used i...
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WO/2002/018888A1 |
A weight sensor (10) for sensing an applied weight. The sensor includes a first (20) and second (22) outer substrate that have a first (20C, 22C) and second (20D, 22D) end and an inner surface (20B, 22B) and an outer surface (20A, 22A). ...
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WO/2002/012873A2 |
A quartz crystal sensor cell in which the sensor is secured to the base of a well defining a test sample space by a layer of adhesive between the respective peripheral surfaces. Also a quartz crystal sensor cell is provided in which the ...
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WO/2002/008705A1 |
The invention relates to a force transducer (2) which is used to receive the applied force of weight in the mounting of a vehicle seat, comprising a force input element (4) in the vehicle seat, a force output element (7) connected to the...
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WO/2002/006783A1 |
The present invention relates to a system for measuring loads applied to a platform (9), wherein the accuracy of the measurements is nor adversely affected by any moments or torques resulting from the application of the load applied to t...
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WO/2001/096820A1 |
A seating load sensor and a method of manufacturing the load sensor capable of accurately detecting a load at the seat of an occupant and manufacturing the load sensor at a low cost; the method of manufacturing the load sensor, comprisin...
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WO/2001/092844A1 |
A load cell (1), comprising a deformed body (2), a bridge circuit, and a film (10), the bridge circuit further comprising strain gauges (7) installed on the deformed body (2), wherein the film (10) is formed on the deformed body (2) so a...
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WO/2001/086237A1 |
The present object refers to an unpublished and versatile model of a scale (1) for the weight of dry clothes in laundries residencies, comprising a tubular body (3) with superior tamps (4), inferior (5) and means for attaching it to a wa...
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WO/2001/084094A1 |
A collapsible weighing scale (A) has a platform (10) consisting of interconnected support segments (11-17) and a support structure (18-19) connected to the platform (10). In one embodiment, a thin top platform (10) is made of connected s...
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WO/2001/077632A1 |
The cost of machining a shear beam load cell can be greatly reduced by cutting pockets for the central web with a side cutting tool (55), such as a Woodruff Cutter or a Key Cutter tool, in a vertical spindle milling machine (52), so all ...
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WO/2001/063224A1 |
The invention concerns piezoelectric material microbalances operating in liquid medium. Said microbalances comprise a piezoelectric material segment (1) which serves as resonator and which is provided on the two opposite faces with an el...
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WO/2001/044763A1 |
The invention relates to a weigh scale comprising a bottom part and a top part which can move relative to said bottom part and a measuring transducer. According to the invention, said device can be configured in a particularly robust and...
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WO/2001/044764A1 |
The invention provides systems and methods for measuring the mass of a substance. In one method, energy is applied to a substance and a response resulting from the application of energy as measured. The mass of the substance is then dete...
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WO/2001/036924A1 |
A force sensing module comprising two or more load cells (27, 28) mounted vertically with output signals combined and adjustable to minimize longitudinal torque response. The force sensing module further comprises a vertical support for ...
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WO/2001/033175A1 |
A controller for a quartz crystal microbalance (QCM) sensor system and method for detecting mass deposition on a QCM sensor. The controller controls a QCM using the following devices operating together: temperature-, voltage- and current...
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WO/2001/027569A1 |
A method and a system of weighing a vehicle in motion which includes a load sensing device (particularly in the forms of an optic fibre cable or strain gauges) located beneath the surface of a roadway and extending across at least one la...
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WO/2001/025731A2 |
The present invention relates to a method for weighing items and in particular to a method of filtering signals representing the weight of an item. The invention is applicable in all measuring instruments which indicate an average value ...
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WO/2001/023846A1 |
A shear beam load cell includes a beam (10) with a webbed portion (18) to which is attached a strain measuring device for determining the shear applied to the beam by a load means (16). A plurality of support means (12, 14) are spaced al...
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WO/2001/018504A1 |
The invention relates to a deformable body for a nominal load of 50 t, with optimal linearity and hysteresis. The diameter of the upper recess (5) (D¿O?) is 38 mm ± 10 mm, the diameter of the base (2) (D) is 72 mm ± 10 mm, the distanc...
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WO/2001/013076A1 |
A vehicle seat weight sensor for sensing the weight of an occupant in a vehicle seat (12). The sensor (30) has a housing (40). A substrate (31) is located in the housing and has a first (34A) and second end (34B). Strain gauge resistors ...
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WO/2001/007876A1 |
The invention concerns a weight-filling machine wherein a force sensor consists of a deformable component having a base end (16) linked to a frame and an interface end (18) whereon is fixed a device for gripping (50) the container. The i...
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WO/2001/004587A1 |
The invention relates to a force-measuring element for a balance, comprising a beam, which receives the load at one end and which has a first recess on whose top and bottom faces bending points are formed by markedly reduced cross-sectio...
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WO/2001/002820A1 |
A method for directly measuring the mass of an object comprising the steps of: a) exciting the object with a vibration by applying a non-constant but known force which changes as a function of time, said changing force being applied with...
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WO/2000/077488A1 |
A high-temperature balance includes a piezoelectric material, such as langasite (gallium phosphate (Ga PO4), a member of the (Al, Ga) N system), that are stable at high temperatures. The frequency response of the balance is monitored to ...
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WO/2000/075617A1 |
A load cell capable of increasing a measurement accuracy and a reliability in strength by transmitting a vertical load acting on the load cell accurately to a straining body and effectively protecting the load cell against a horizontal f...
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WO/2000/075613A1 |
A weighing apparatus includes a base (12) supporting a cantilevered elastic member (14) bearing a load platform (16). The interior of the elastic member (14) is hollowed and is provided with first (20) and second (22) piezoelectric trans...
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WO/2000/073757A1 |
The invention relates to a rotationally symmetrical diaphragm element for a weighing cell, comprising a force-application area (1), a supporting ring (4) which is used as a support on a carrier (3) and comprising a membrane (5) which is ...
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WO/2000/068679A1 |
The concentration of an analyte in a fluid is measured by a quartz crystal microbalance sensor device (10) in the fluid containing a concentration of the analyte. The sensor device exhibits a resonant frequency representative of the conc...
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WO/2000/062935A1 |
The method for verifying the filling level in a ball mill fed by material which is to be ground and provided with a rotationally mounted drum on two distant bearings consists in measuring the weight of the drum with the aid of bondage-ga...
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WO/2000/058709A1 |
A method for determining a physical or chemical characteristic of a liquid in which a drop of the liquid is located on the surface of a crystal of a quartz crystal microbalance. The liquid is evaporated from said surface while a signal o...
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WO/2000/040923A1 |
The object of the invention is a measuring device for measuring small forces and displacements having in a body (1) of the device a detector means comprising a light source (4) and a position-sensitive detector (5), and a sensing means c...
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WO/2000/039541A1 |
A weighing apparatus including a planar load cell (21) mounted to a base plate (20). The planar load cell (21) includes a strain gage (24) located at each of the four corners (23a, 23b, 23c, 23d) of the planar load cell (21) and two guid...
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WO/2000/029828A1 |
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/2000/026626A1 |
The invention concerns a passenger detector comprising a flexible support made of insulating material, at least two electrode structures arranged on said insulating substrate at some distance from each other, and a layer made of a semico...
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WO/2000/026636A1 |
A QCM sensor for detecting and measuring the components of a sample from a change in the main resonance frequency or from a change in the impedance caused when the surfaces of electrodes of a sensor device having electrodes opposed to ea...
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WO/2000/025118A1 |
An analytical apparatus, such as a quartz crystal microbalance, comprising a piezoelectric sensor and an oscillator circuit, coupled to the sensor, to oscillate at a frequency substantially determined by a resonant frequency of the senso...
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WO/2000/020850A1 |
A device for sensing and measuring gaseous and/or vapor state analytes based on resonant piezoelectric layers, comprising a substrate from alumina (1), a plurality of sensors (2a, 2b, 2c, 2d) made from lead zirconate-titanate based piezo...
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WO/2000/016054A1 |
The invention relates to a motor vehicle seat having an integrated occupancy detection system. The seat comprises an upper frame (10) which supports a seat padding or a seat pan, and has a lower frame (12) which is fastened in the motor ...
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WO/2000/014492A1 |
The invention relates to a platform scale with several identical flexible elements (6, 10, 12) arranged on the edge thereof. The platform scale consists of an upper part (3) and a lower part (11) between which said flexible elements (6, ...
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WO1996035103A9 |
A device and a process for measuring resonant frequency and dissipation factor of a piezoelectric resonator are presented. After exciting the said resonator to oscillation, the driving power to the said oscillator is turned off after whi...
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WO/2000/006977A1 |
A thin weighing machine (40) simple in structure, small in thickness, and high in long-term reliability, wherein a weight applied to a loading table (30) is applied distributedly to a plurality of pivots, the load is supported by the plu...
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WO/2000/003218A1 |
The inventive force measuring cell consists of a plate (2) which is provided with a circular hole (2), the axis of which is perpendicular to the surface of said plate (2) and to the direction of the force that is to be measured. Said axi...
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WO/1999/067605A1 |
The invention concerns a silicon micromechanical weight sensor (26). According to the invention, the weight sensor comprises at least two conducting electrodes (2, 15) displaced at a distance from each other, whereby one of the elastical...
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WO/1999/064827A1 |
A mass determination device (100) includes a combination of an elastic element (102) connected with a mass holder (106). The combination has a normalized temperature coefficient of frequency substantially equal to zero over a temperature...
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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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