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| Number | Title | Issue Date |
| 8183975 | Miniature pressure transducer A miniature pressure transducer is disclosed which is able to operate at high temperatures. The pressure transducer is provided on a substrate comprising an elongate silicon base portion with one or more contact areas formed at one end and a diaphragm formed at the ... | 05/22/2012 |
| 8022806 | Fluid pressure sensor package A fluid pressure sensor package can be easily assembled to have different types of probe tubes depending upon different application environments. The sensor package includes a sealed casing accommodating a sensor chip for sensing a pressure of a fluid introduced int... | 09/20/2011 |
| 7808365 | Pressure sensor A diaphragm is formed at a predetermined location of a sensor chip made of semiconductor material, and a sensor gauge for differential pressure or pressure sensing-use is provided on the sensor chip that includes at least the diaphragm. The sensor gauge has a plural... | 10/05/2010 |
| 7322247 | Gasket having a fiber-optic pressure sensor assembly A sensor assembly includes a stainless steel tubular housing. Within the housing is a polyetheretherketone tube and a sensor. An optical fiber joins the sensor to a transmission cable and is fixedly positioned within the tube. A first end of the housing includes a p... | 01/29/2008 |
| 7318351 | Pressure sensor A pressure sensor is constructed of a plastic package. The plastic package incorporates in the same material a sensing diaphragm including tensile and compression regions. Deposited on the diaphragm are metal electrodes and a polymer film having piezoresistive prope... | 01/15/2008 |
| 7312406 | Sensor having metallic housing and resin connector, and method of manufacturing the same A sensor includes a metallic housing having a hollow portion, a metallic terminal pin, a part of which is inserted into the hollow portion of the housing, a sensing element connected to the terminal pin, and a resin casing. The terminal pin and the resin casing prov... | 12/25/2007 |
| 7302856 | Strain sensors based on nanowire piezoresistor wires and arrays A highly sensitive and ultra-high density array of electromechanical nanowires is fabricated. Nanowires are extremely sensitive to the strain induced by the attachment of biological and chemical species. Real-time detection is realized through piezoresistive transdu... | 12/04/2007 |
| 7292132 | NTC thermistor probe An apparatus for temperature measurement comprising at least one insulator, at least one thermistor attached to the insulator, the thermistor having at least one of a Ge NTC die and an Si NTC die, and at least one outer electrically conductive film attached to the i... | 11/06/2007 |
| 7284444 | Hermetically sealed displacement sensor apparatus A hermetically sealed displacement sensor has strain gauges placed on thin flexible triangular shaped beams of a load beam cell. The strain gauges are enclosed in a hermetically sealed cavity which cavity is sealed by means of a cover plate placed over the load beam... | 10/23/2007 |
| 7278321 | Pressure sensor A pressure sensor for sensing a pressure level of a medium. The pressure sensor includes a rigid substrate having a medium contacting side and a pressure sensitive resistor mounted on the medium contacting side. The resistor exhibits a change in resistance in respon... | 10/09/2007 |
| 7275452 | Stop assembly for a beam type load cell A beam load cell transducer is positioned between a stationary member and moveable member. The stationary member, as well as the moveable member are surrounded by a collar, which collar has an inner surface means to limit the movement of the moveable member of the t... | 10/02/2007 |
| 7273763 | Method of producing a micro-electromechanical element In a method of producing a micro-electromechanical element a first intermediate layer, which is applied to a first main surface of a first semiconductor wafer, is structured in a first step so as to produce a recess. The first semiconductor wafer is connected via th... | 09/25/2007 |
| 7249501 | Pressure distribution measurement system A pressure distribution measurement system for measuring a pressure distribution on a measurement object. A flexible sheet-form pressure detection member includes a plurality of pressure passages extending in parallel and a pressure detection hole opened in each of ... | 07/31/2007 |
| 7240558 | Pressure sensor A pressure sensor for sensing a pressure level of a pressurized medium. The pressure sensor includes a housing that has a high pressure side, a low pressure side and an aperture. A substrate is located in the aperture. The substrate has a pair of ends and a center p... | 07/10/2007 |
| 7212096 | Pressure sensor header having an integrated isolation diaphragm A pressure sensor header for a pressure transducer includes a header shell having a sensor cavity formed therein, a sensor element disposed in the sensor cavity, a fluid medium disposed in the sensor cavity, an isolation diaphragm closing the sensor cavity, and a jo... | 05/01/2007 |
| 7165459 | Pressure sensor An adapter (2) disposed between joint (1) and diaphragm (3) includes an axis portion (21) and a flange (22) projecting radially from the axis portion (21). The axis portion (21) is arranged so that one end thereof doe... | 01/23/2007 |
| 7162927 | Design of a wet/wet amplified differential pressure sensor based on silicon piezoresistive technology The invention provides pressure sensors for use in wet environments. A pressure sensor package according to the invention has a housing having a pair of cavities separated by a wall member. Sequentially contained within one cavity is a conductive elastomeric seal pa... | 01/16/2007 |
| 7154372 | Micromechanical flow sensor with tensile coating A sensor integrated on a semiconductor device (1), in particular a flow sensor, comprises a measuring element (2) on a membrane (5). In order to prevent a buckling of the membrane (5) a tensile coating (9) is applied. The coating c... | 12/26/2006 |
| 7152483 | High pressure sensor comprising silicon membrane and solder layer A device for measuring pressure, e.g., for measuring high pressure, including a pressure transducer that is arranged in a housing and includes sensor elements and a sensor diaphragm on a first side, and on a second side opposite the first side is provided with a cut... | 12/26/2006 |
| 7134354 | Display for process transmitter A transmitter for use in a process control system for monitoring an industrial process includes a housing having a top and a bottom and a height extending therebetween. A parallelogram display is mounted to the housing. Sides of the parallelogram display are arrange... | 11/14/2006 |
| 7109883 | Low power physical layer for a bus in an industrial transmitter A process variable transmitter connects a serial bus to an accessory load. A supply limiter circuit provides a first supply current limit and provides a stored energy output. A recessive driver circuit draws a drive current from the stored energy output and couples ... | 09/19/2006 |
| 7107853 | Pressure transducer for measuring low dynamic pressures in the presence of high static pressures A sensor is described, which basically consists of a leadless high sensitivity differential transducer chip which responds to both static and dynamic pressure. Located on the transducer are two sensors. One sensor has a thicker diaphragm and responds to both static ... | 09/19/2006 |
| 7047813 | Sensor slip fit apparatus and method A sensor apparatus and method are disclosed herein. A base is generally located proximate to a cover. A sensor element (e.g., quartz, silicon, ceramic, and the like) can be located on the base, such that the cover and the base form a clearance between the cover and ... | 05/23/2006 |
| 7036381 | High temperature pressure transmitter assembly A pressure transmitter assembly for measuring a pressure of a process fluid includes an isolation diaphragm assembly. A pressure sensor is spaced apart from the isolation diaphragm assembly to provide thermal isolation. A conduit extends from the isolation diaphragm... | 05/02/2006 |
| 7028549 | High-pressure sensor, method and tool for its manufacture A high-pressure sensor includes a deformation member and connection piece that is joined to the deformation member by a welded seal. The deformation member has a truncated-cone-shaped circumferential segment, via which a welding current can be supplied, in order to ... | 04/18/2006 |
| 7030728 | Layout and method to improve mixed-mode resistor performance A resistor layout and method of forming the resistor are described which achieves improved resistor characteristics, such as resistor stability and voltage coefficient of resistance. A resistor is formed from a conducting material such as doped silicon or polysilico... | 04/18/2006 |
| 7000484 | Load beam apparatus operative to prevent improper operation due to off axis loads A beam transducer employs a linear bearing which surrounds the active element of the transducer which is the beam. One end of the bearing is welded to the inactive end of the load beam. The other end of the bearing is not welded, allowing the active end of the beam ... | 02/21/2006 |
| 6997059 | Pressure sensor A pressure sensor for sensing a pressure level of a pressurized medium. In one embodiment, the pressure sensor has a high pressure side and a low pressure side. An aperture may extend through at least a portion of the sensor assembly, and a seal is located in the ap... | 02/14/2006 |
| 6973820 | Combustion pressure sensor designed to ensure stability of output characteristic and sensitivity A combustion pressure sensor for an internal combustion engine is provided. The sensor includes a sensing element such as a piezoelectric device sensitive to a physical load applied thereto to produce an electric signal indicative thereof and a bendable member. The ... | 12/13/2005 |
| 6974515 | Ceramic substrate and method of manufacturing same A ceramic substrate having a defined curvature and a method of its manufacture are described. For this purpose at least two ceramic layers having different defined temperature coefficients of expansion are positioned on top of one another and are permanently bonded ... | 12/13/2005 |
| 6962084 | Sensor with molded sensor diaphragm cover A diaphragm cover apparatus and method for a sensor are disclosed. A sensor cover is located proximate to a base. A dimple can be located centrally within the cover, wherein the dimple comprises a component that is separate from the sensor cover and diaphragm. The d... | 11/08/2005 |
| 6955090 | Cylinder pressure transducer and related method A pressure transducer for a hydrogen reciprocating compressor in a sour gas environment includes a sensor head including a diaphragm mounted on a free end of the sensor head. The diaphragm is constructed of a nickel-based alloy with gold plating on an exposed side t... | 10/18/2005 |
| 6945117 | Gasket having a fiber-optic pressure sensor assembly A sensor assembly includes a stainless steel tubular housing. Within the housing is a polyetheretherketone tube and a sensor. An optical fiber joins the sensor to a transmission cable and is fixedly positioned within the tube. A first end of the housing includes a p... | 09/20/2005 |
| 6938490 | Isolation technique for pressure sensing structure An electronic pressure-sensing device is isolated from corrosive, conductive gasses and fluids by a corrosion resistant metal diaphragm welded to a pressure port. The pressure-sensing device is attached to a support structure with a hole that provides a path from th... | 09/06/2005 |
| 6935184 | Pressure transducer capable of detecting internal leakage of external media A pressure transducer capable of detecting leakage of media into the pressure transducer. The pressure transducer comprises a spacer having first and second ends. A first header assembly containing a first pressure sensor for measuring a pressure of the media, is se... | 08/30/2005 |
| 6931934 | Sensor top hat cover apparatus and method A sensor apparatus and method are disclosed herein, including a sensor element located on a base and a cover located proximate to the base. The cover generally includes a sensor diaphragm and a dimple that can form a part of the cover. A flanged area or flanged port... | 08/23/2005 |
| 6725514 | Method of making thick film pressure and temperature sensors on a stainless steel diaphragm A method of making a low-cost metal diaphragm sensor that integrates both pressure and temperature sensing in a single sensor assembly utilizes thick-film processing to form a circuit including stress and temperature sensitive elements on the outboard or exposed sur... | 04/27/2004 |
| 6700473 | Pressure transducer employing on-chip resistor compensation A dielectrically isolated temperature compensated pressure transducer including: a wafer including a deflectable diaphragm formed therein, the diaphragm being capable of deflecting in response to an applied pressure, and the diaphragm defining an active r... | 03/02/2004 |
| 6675655 | Pressure transmitter with process coupling A process transmitter for measuring a process pressure includes a pressure sensor in a sensor housing. An isolation diaphragm which isolates fill fluid from process fluid is spaced apart from a process fluid seal. The spacing reduces deformation of the is... | 01/13/2004 |
| 6595066 | Stopped leadless differential sensor A leadless sensor of the type employing a p+ rim which surrounds contact areas, each contact area defined by a metallized portion surrounded by a p+ semiconductor material, which p+ semiconductor materials or fingers are coupled to an active sensor array.... | 07/22/2003 |
