Matches 1 - 50 out of 496 1 2 3 4 5 6 7 8 9 10 >


Match Document Document Title
7733209 High temperature pressure transducer employing a metal diaphragm  
A pressure transducer includes a diaphragm, having an active region, and capable of deflecting when a force is applied to the diaphragm; and a sensor array disposed on a single substrate, the...
7317199 Circuit device  
To provide a circuit device suitable for incorporating a semiconductor element emitting or receiving short-wavelength light. The circuit device includes a casing, a semiconductor element, and a...
7116209 Strain gauges  
The present invention provides a strain gauge comprising a resistive layer. The resistive layer comprises metallic or semiconducting nanoparticles or aggregates thereof in which the nanoparticles...
7065861 Method of producing a strain-sensitive resistor arrangement  
The invention relates to a strain-sensitive resistor, comprising a resistance layer arranged on a support element and an electromechanical transducer produced with this resistor. An increase in the...
7013735 Pressure sensor  
A differential pressure sensor chip (4) comprises a diaphragm for measuring a differential pressure and converts a pressure received by the diaphragm for measuring the differential pressure into an...
6955087 Pressure transducer with capillary tube for high pressure measures  
A pressure transducer with a capillary tube filled with a fluid for high pressure measurements. The pressure transducer has a sensitive element formed with a bore defining a cylindrical sensitive...
6335675 Semiconductor magnetoresistance device, making method and magnetic sensor  
A semiconductor magnetoresistance device having plural pairs of opposed short-circuiting electrodes (13) on the opposed surfaces of a semiconductor magneto-sensitive layer (12) shows a great...
6269534 Method for producing an electric resistor and a mechano-electric transducer  
A method for producing an electric resistor, in particular a resistance strain gauge, in which an insulating layer and a resistive layer are sequentially applied to a carrier element. The...
6240785 Cryogenic, absolute, high pressure sensor  
A pressure sensor is provided for cryogenic, high pressure applications. A highly doped silicon piezoresistive pressure sensor is bonded to a silicon substrate in an absolute pressure sensing...
6214634 Sensor device and method of forming a sensor device  
A sensor device (20) comprises a sensor package (22) having a cavity (24) formed therein, a sensor die (26) mounted on a bottom surface (28) of the cavity (24) and a protective coating (30) formed...
6210989 Ultra thin surface mount wafer sensor structures and methods for fabricating same  
There is disclosed a semiconductor sensor device comprising a semiconductor diaphragm member having a top surface coated with an oxide layer; P+ sensor elements fusion bonded to the oxide layer at...
6211772 Semiconductor composite sensor  
A semiconductor composite sensor using a plurality of semiconductor piezoresistive gauge elements connected in series. The piezoresistive elements are separated so that a high potential terminal of...
6150917 Piezoresistive sensor bridge having overlapping diffused regions to accommodate mask misalignment and method  
A piezoresistive pressure sensor (30) has four resistive diffused regions (32) coupled into a bridge configuration (33) with four junctions (36) and four inside corners (40). Each of the diffused...
5999082 Compensated oil-filled pressure transducers  
A pressure transducer employing a metal isolation diaphragm. A volume of oil is located between the metal diaphragm and a silicon sensor received in a base member. In order to reduce errors at very...
5969591 Single-sided differential pressure sensor  
A single-sided differential pressure sensing chip having a cavity formed in the top surface of a substrate, a deformable diaphragm spanning the cavity, and a pressure passage connecting the top...
5831165 Acceleration sensor  
An acceleration sensor (1) includes a parallelepiped case (2). A circuit board (3) is secured in the case (2). A sensor chip (5), on which a diffusion strain gauge (5b) is formed, is mounted on the...
5812047 Offset-free resistor geometry for use in piezo-resistive pressure sensor  
An improved resistor and connection region structure in which the geometries of the connection regions for a pair of radial resistors correspond to the connection region geometries for a pair of...
5760675 Piezoresistive device and fabrication method thereof  
Disclosed is the method of producing a piezo-device utilizing an ultra-thin Mo-C film as a piezoresistive material for a general class of improved piezo-device with the high sensitivity and the...
5742222 Direct adhering polysilicon based strain gage  
An economical non-metallic strain gage insensitive to ambient temperature variations, and without a diode junction, which is suitable for general use and particularly for use in touch screens,...
5677493 Composite condition detection apparatus for detecting static pressure, differential pressure and temperature of a process  
In a multiple function type differential pressure sensor including a semiconductor chip having a differential pressure detector for detecting a differential pressure, temperature detector for...
5644285 Pressure transducer with media isolation  
A pressure sensor die is provided with a flexible membrane and a plunger which combine to amplify a low pressure signal while also providing media isolation between a fluid being measured and the...
5594405 Pressure transducer with pressure sensitive conductor  
A pressure transducer has a cylindrical body with a thread formed on at least part of the outer surface. A resistance element is wound in the thread and an internal bore receives pressurized fluid....
5589810 Semiconductor pressure sensor and related methodology with polysilicon diaphragm and single-crystal gage elements  
A semiconductor pressure sensor utilizes single-crystal silicon piezoresistive gage elements dielectrically isolated by silicon oxide from other such elements, and utilizes an etched silicon...
5587535 Pressure sensor including a pair of slidable contacts between a strain gage and a print circuit board  
A pressure sensor comprises a pressure-sensitive coupler body 2 having one end provided with a diaphragm 8 and strain gage 9 stacked together, an intermediate body 3 containing a printed board 21...
5528214 Pressure-adjusting device for adjusting output of integrated pressure sensor  
A pressure-adjusting device for adjusting an output of an integrated pressure sensor in which a silicon wafer is joined onto a seat that has pressure-adjusting passages formed therein, and which...
5505092 Non-invasive fluid condition sensing transducer  
A fluid condition sensing transducer includes a fluid containment device having a cylindrical side wall including an inner surface in contact with a fluid and an outer surface, a diaphragm integral...
5483834 Suspended diaphragm pressure sensor  
A pressure sensor includes a diaphragm assembly with a pair of diaphragms joined together along a rim and having spaced apart centers to form a cavity between them. A pressure input applies a...
5412992 Differential pressure sensor capable of removing influence of static pressure and a method of assembling the same  
A differential pressure sensor is disclosed, and in particular, there is disclosed a multiple function type differential pressure sensor capable of reducing a zero-point-change and a span change of...
5408885 Pressure detecting circuit for semiconductor pressure sensor  
A pressure detecting circuit compensating for temperature dependency of a zero point output voltage of a semiconductor pressure sensor. A differential amplifier circuit in a signal processing...
5375473 Semiconductor type differential pressure measurement apparatus and method for manufacturing the same  
A semiconductor type differential pressure measurement apparatus is disclosed comprising a measuring diaphragm having its periphery fixed, and two measuring chambers, each having a predetermined...
5357808 Overpressure-protected, differential pressure sensor  
An overpressure-protected, differential pressure sensor (37) is formed by depositing diaphragm material (24) over a cavity (23) formed and filled with sacrificial material (22) into a front surface...
5357807 Micromachined differential pressure transducers  
Microminiature pressure transducers are formed on semiconductor substrates such as silicon and include a membrane which spans a cavity over the substrate, with the membrane being mounted to and...
5351550 Pressure sensor adapted for use with a component carrier  
A pressure transducer is provided with a housing member that attaches to a rigid and generally planar member, such as a ceramic circuit board. The legs of the housing member can pass through holes...
5349866 Digital pressure gauge  
A digital pressure gauge includes a casing having a pressure sensitive member which responds when pressure is passed therethrough and a digital display member electrically connected to the pressure...
5349867 Sensitive resistive pressure transducer  
A resistive pressure transducer wherein a flexible diaphragm is mounted in a spaced apart relationship to the upper surface of a base member. A conductive path is deposited on one surface of the...
5349746 Process for the manufacture of a force sensor  
A process and a device are proposed for manufacturing sensors, particularly those intended for the determination of pressure forces. In thick-film technology, initially at least one insulating...
5335551 Pillow type pressure detector  
A pillow type pressure detector having a base board on the front surface of which a load cell type load sensor is mounted; a holder cover which is so provided as to be spaced a predetermined...
5333505 Semiconductor pressure sensor for use at high temperature and pressure and method of manufacturing same  
In a semiconductor pressure sensor, a dam which prevents a sheathing resin from flowing into a diaphragm portion during the molding of the sheathing resin is disposed on the outer periphery of...
5333504 High overpressure low range pressure sensor  
A low range pressure sensor includes a base plate of brittle material, and a diaphragm plate mounted on the base plate and sealed around a periphery to the base plate. Pressures are introduced to...
5329271 Semiconductor strain sensor  
A semiconductor strain sensor includes a silicon substrate, a strain resistive element and electrodes. The silicon substrate has a deformable portion which is deformed when stress is applied to it....
5327785 Pressure sensor with improved heat dissipation characteristics  
A pressure sensor is provided with a means for efficiently removing heat from a circuit portion of a sensor die by providing an elastomeric member between a first surface of the sensor die and...
5319980 Board construction for resistive strain gauge pressure sensors  
A resistive strain gauge pressure sensor including upper and lower housings coacting to define a pressure chamber within the housing. A board member assembly is clamped between the housings and...
5319981 Differential pressure device  
A pressure sensing transmitter is provided that has high overpressure protection. The transmitter includes an housing having a first cell, a second cell, a sensing chamber, first and second...
5317921 Resistive strain gauge pressure sensor  
A resistive strain gauge sensor of the type including a circuit board carrying circuitry, a diaphragm bonded to the circuit board, and strain gauge circuitry on the diaphragm. The strain gauge...
5317923 Pressure transducers  
The invention improves upon the diaphragm/beam-type transducers and method of manufacturing same described in U.S. Pat. No. 4,368,575.The new transducers and method of manufacture utilize strips or...
5315878 Measuring head for a pressure-measuring device with a pressure sensor for the simultaneous actuation of a switching contact  
A pressure-measuring head for measuring the pressure of a fluid consists of a membrane-like diaphragm (6), which separates a pressure chamber (4) from a reference chamber (7), to which the...
5311779 Pressure-sensitive sensor  
A pressure sensitive sensor in which a pressure detecting convex portion is formed on the surface of a pressure-sensitive and conductive elastomer sheet, and an electrode is arranged on the reverse...
5303593 Strain gauge distribution for resistive strain gauge pressure sensor  
A resistive strain gauge pressure sensor including upper and lower housings coacting to define a pressure chamber within the housing A board member is clamped between the housings and defines a...
5303594 Pressure transducer utilizing diamond piezoresistive sensors and silicon carbide force collector  
A pressure transducer employing at least one piezoresistive sensor fabricated from diamond. The diamond piezoresistive sensors are formed on a dielectric layer fabricated from silicon dioxide. The...
5297438 Piezoresistive sensor  
An electrical circuit containing novel piezoresistive sensor is disclosed. The sensor is connected to a source of direct current, and a manometric pressure of at least about 15 p.s.i.g. is applied...
Matches 1 - 50 out of 496 1 2 3 4 5 6 7 8 9 10 >