Patent application number | Description | Published |
20090090176 | ELECTROCHEMICAL SENSOR - An electrochemical sensor for measuring contents of a fluid or gas at high pressure and/or high temperature, for use, for example, in a wellbore for hydrocarbon applications, is provided. The sensor includes: a bulkhead-like electrode assembly including a cylindrical housing and a cylindrical electrode structure. The cylindrical electrode structure includes a cylindrical conductive pin extending from a high pressure region to a low pressure region and an electrode connected to one end of the pin at the high pressure region and having an electrode surface for exposure to a flow path of the fluid or gas in the high pressure region. At least a part of the surface of the pin is protected from direct contact with the fluid or the gas by an insulating coating impermeable to the fluid or gas. The pin may include an alternating pattern of protruding and receded portions. | 04-09-2009 |
20090166085 | DOWNHOLE FLUID ANALYSIS - A method that uses downhole fluid analysis in order to selectively collect and retain formation fluid samples in a drilling environment, as well as, control drilling using downhole fluid analysis. | 07-02-2009 |
20090287451 | METHOD AND SYSTEM FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - A method and system for azimuth measurements using one or more gyro sensors is disclosed. The method includes acquiring a first data from each of the gyro sensors with an input axis aligned to a first angular orientation and acquiring a second data from each of the gyro sensors with the input axis flipped to a second angular orientation opposite to the first angular orientation. An earth rate component at the first angular orientations is determined based on a difference between the first data and the second data to cancel out bias of each of the gyro sensors. The method may include acquiring a third data of the gyro sensor with the input axis aligned to the same angular orientation as the first angular orientation. An average of the first data and the third data may be used instead of the first data for determining the earth rate component. | 11-19-2009 |
20100223796 | APPARATUS FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - An apparatus for azimuth measurements is provided. The apparatus comprises a housing and a plurality of gyro sensors aligned in the housing. Each of the plurality of gyro sensors has an input axis for angular velocity measurements. There is provided a drive unit for rotating each of the plurality of gyro sensors about a rotation axis. Each of the plurality of gyro sensors changes orientation of the input axis with the drive unit. | 09-09-2010 |
Patent application number | Description | Published |
20090134866 | Rotation detecting device and method for manufacturing the same - A rotation detecting device includes a rotation detecting element detecting rotation speed of a rotating object and including lead terminals, a holder integrally molded with an electrode terminal to which the lead terminals are connected, including an opposing surface in opposition to the rotating object and a contact surface on the opposite side of the opposing surface, and accommodating the rotation detecting element, a cover accommodating the holder and including a bottom face portion in contact with the holder at the contact surface and a peripheral wall portion formed along the periphery of the bottom face portion, and a housing molded with resin, accommodating a lateral face of the holder being in contact with the cover, and fixing the holder to the cover. The holder includes a first resin filling portion filled with a first resin and a second resin filling portion isolated from the first resin filling portion. | 05-28-2009 |
20100219813 | POSITION DETECTING DEVICE FOR A VEHICLE AND SEAT POSITION DETECTING DEVICE - A position detecting device for a vehicle and a seat position detecting device which are compact in structure and low in production cost are proposed, in which the absolute position from the reference point can be always detected. The position detecting device for a vehicle for detecting a position of a mobile object for the vehicle which is moved by a driving force of a rotating driving source includes a deceleration device having a two-stage hypo-cycloid mechanism decelerating the rotation amount of a rotation shaft rotated plural revolutions to one revolution or less by the driving source upon the mobile object being moved and a rotation sensor detecting a rotation output from the deceleration device as an absolute angle, wherein a position of the mobile object is detected based on the absolute angle detected by the rotation sensor. | 09-02-2010 |
20130187633 | CURRENT SENSOR - Provided is a current sensor including at least three bus bars made of flat-plate-shaped conductors and an inverter, a plurality of cores in which a core is formed by stacking flat plates made of U-shaped magnetic bodies, and a detecting element arranged on the side of an opening portion of each of the cores for detecting the intensity of a magnetic field, that the interval between the core and another bus bar that is adjacent to the bus bar inserted into the U groove of the core becomes 1/2 of the length of the opening portion in the spacing direction, and the tolerance of the gap is set to a value obtained by subtracting the value of 3/2 of the length of the opening portion in the spacing direction from the value of the interval between the bus bars that are adjacent to each other, with the gap as a median value. | 07-25-2013 |
20140176123 | CURRENT SENSOR - A current sensor includes: a core formed by U-shaped flat plates made of a magnetic body and stacked together; a flat plate-like conductor which is inserted on an interior side of a U-groove of the core and through which a current to be measured flows; a detection element which is arranged on the side of an opening of the U-groove in such a way that a detecting direction extends in a spacing direction of the opening, and which detects a strength of a magnetic field; a housing which supports the core, the conductor and the detection element; and a pair of spacing direction supporting portions which are provided at positions along the spacing direction on both sides of the detection element, in an opening-side end of the core, and which abut on the housing. | 06-26-2014 |
20140176124 | CURRENT SENSOR AND MANUFACTURING METHOD FOR THE SAME - A current sensor includes: a housing that holds a busbar to which a current is applied and a core arranged around the busbar; a circuit board fixed to the housing in the state of being arranged to face the housing; and a detection element for detecting the current; wherein the detection element has an element main body held in the housing and plural connection terminals fixed in through-holes in the circuit board, and a plate-like member provided with guide holes in which the connection terminals are inserted and which have a diameter reduced from the side of the housing toward the side of the circuit board is provided on a surface facing the housing, of two surfaces of the circuit board. | 06-26-2014 |
Patent application number | Description | Published |
20100077623 | APARATUS FOR AZIMUTH MEASUREMENTS USING GYRO SENSORS - An apparatus for azimuth measurements comprises an elongated housing, a plurality of gyro sensors, each of the gyro sensors having an input axis for angular velocity measurements, spherical sensor holders arranged along the longitudinal direction of the housing, at least one motor for driving the sensor holders, a transmission mechanism for transmitting a rotation force from the motor to each of the sensor holders and a controller for controlling a rotation of the motor. Each of the sensor holders has one of the gyro sensors and is rotatable about a rotation axis so as to change the orientation of the input axis of the gyro sensor. | 04-01-2010 |
20140001114 | Fluid Filters | 01-02-2014 |
20140176946 | Methods and Apparatus for Downhole Fluid Analysis - Methods and apparatus for downhole fluid analysis are disclosed. An example method includes obtaining first measurements from a first spectrometer and a second spectrometer when a light source is on, obtaining second measurements from the first spectrometer and the second spectrometer when the light source is off and calibrating the first spectrometer based on the first measurements and the second measurements. | 06-26-2014 |
20140240862 | Optical Window Assemblies - Optical window assemblies are disclosed herein. An example apparatus includes a first fixture defining a fluid flow passageway. The example apparatus also includes a second fixture defining an aperture. The second fixture is coupled to the first fixture. A first optical window is disposed in the aperture. The first optical window has a first end and a second end. The first end is to be in contact with fluid in the fluid flow passageway, and a cross-sectional size of the first optical window decreases from the first end toward the second end along a portion of the first optical window. | 08-28-2014 |
20150138557 | Image-Based Measurement of A Fluid - An imaging-based measurement apparatus includes a light source, and at least one optical element for positioning in a flow conduit, the at least one optical element being part of a light path for light emitted by the light source, where light along the light path passes through a portion of fluid flowing in the flow conduit. An image sensor detects the light and measures content of the portion of the fluid. | 05-21-2015 |
Patent application number | Description | Published |
20080238913 | DISPLAY DEVICE - A display device includes a display panel for displaying an instrument image including an index image constituting an index and a pointer image constituting a pointer for pointing the index of the index image and a controller for displaying the instrument image on the display panel. The controller varies at least one of a pointer display mode of the pointer image and an index display mode of the index image so as to increase a readability of the index indicated by the index image when positions associated with the pointer image and the index image coincide. | 10-02-2008 |
20140097968 | DISPLAY APPARATUS - A display apparatus for a vehicle includes a virtual image display device, a detection device, and a picture control device. The virtual image display device emits predetermined light to permit a windshield or a combiner to reflect the predetermined light towards an eye of a driver. The emitted predetermined light is to display a picture. The virtual image display device displays the picture in a displayed area as a virtual image; the picture appears ahead of the vehicle. The detection device detects a target that is an obstacle or an intersection. The picture control device displays the picture to appear below the target in the displayed area, and then moves the picture to a position corresponding to the target apparently while decreasing at least a width of the picture. | 04-10-2014 |
20150291094 | DISPLAY APPARATUS - A display apparatus for a vehicle includes a virtual image display device, a detection device, and a picture control device. The virtual image display device emits predetermined light to permit a windshield or a combiner to reflect the predetermined light towards an eye of a driver. The emitted predetermined light is to display a picture. The virtual image display device displays the picture in a displayed area as a virtual image; the picture appears ahead of the vehicle. The detection device detects a target that is an obstacle or an intersection. The picture control device displays the picture to appear below the target in the displayed area, and then moves the picture to a position corresponding to the target apparently while decreasing at least a width of the picture. | 10-15-2015 |