Abstract: A vehicle display control apparatus mounted on a vehicle includes a display control portion that controls a head-up display device displaying an image by superimposing the image on a view visible to a driver of the vehicle through a windshield of the vehicle, and a condition determination portion that determines whether a condition under which the vehicle should slow down is satisfied. The display control portion causes, based on a determination of the condition determination portion that the condition is satisfied, the head-up display device to display an object that does not actually exist on a road under circumstances where the condition is satisfied, as an illusion image that produces an optical illusion appearing that a road surface viewed from the driver flows faster than an actual speed in an opposite direction to a travel direction by superimposing the illusion image on the view.

Abstract: A vehicular display control device includes: a display control unit for controlling a display device to superimpose an image on a surrounding view of the vehicle; and a sensor operation detecting unit for detecting whether an obstacle sensor detecting an obstacle around the vehicle is in operation. When the obstacle sensor is in operation, the display control unit: transforms a detection target area, which falls in a detection range of the obstacle sensor and expands from the vehicle to a periphery along a road surface, into a detection target image represented from a viewpoint of a driver of the vehicle; and displays a transformed image to be superimposed on the surrounding view of the vehicle.

Abstract: 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.

Abstract: 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.

Abstract: Optical window assemblies are provided. 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.

Abstract: 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.

Abstract: An optical window assembly of an optical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline there through to receive downhole fluid therein. The optical sensor is positionable about the flowline to measure light passing therethrough. The optical window assembly includes a tubular sensor body positionable in the housing (the sensor body having a sensor-end and a flanged signal-end with a passage there through), an optical window positionable in the passage of the sensor body to pass the light from the flowline to the optical sensors, a seal disposed about the sensor body, and a backup ring disposed about the sensor body between the flanged signal-end and the seal to support the seal about the sensor body whereby the downhole fluid is prevented from leaking between the seal and the sensor body.

Abstract: A method for making a reinforced downhole tool component that can be sealed against a large pressure differential is disclosed. The method comprises providing an item for the component, applying a heat treatment to melt a glass material for sealing on the item, cooling down the item gradually to room temperature, and applying a heat treatment for an age hardening on the item.

Abstract: 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.

Abstract: A vibrating wire viscometer and cartridge for the same are provided. The cartridge includes a body member with a flowline for passing fluid, an electrically conductive wire disposed in the flowline, first and second electrically conductive posts, and a connector having first and second electrically conductive terminals. The first and second posts are mechanically coupled to the body member to hold the wire in tension within the flowline. The first and second terminals are connected to the first and second posts for applying an alternating electric current to the wire, respectively.

Abstract: 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.

Abstract: A metal object detection device includes a plurality of detection coils, a capacitor configuring a resonant circuit in cooperation with each of at least two of the detection coils, a first series connection body, a second series connection body, a voltage applying unit, and a processing unit. The voltage applying unit applies an AC voltage to both ends of each of the first series connection body and the second series connection body. The processing unit performs a process for detecting the metal object on the basis of a potential difference between a connection point included in the first series connection body and a connection point included in the second series connection body.

Abstract: 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.

Abstract: 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.

Abstract: A current sensor includes 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. An interval between the core and another bus bar that is adjacent to the bus bar inserted into the U groove of the core is ½ 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.

Abstract: 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.

Abstract: A fluid sensor for a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline therethrough receiving a downhole fluid therein. The fluid sensor includes an insulative base positionable in the downhole tool, a conductive shield positionable on the insulative base, and a plurality of electrodes each having a non-conductive coating thereon. Each of the electrodes includes a sensing element and a pin. The sensing element is positionable in the insulative base and exposed to the downhole fluid passing through the flowline. The pin operatively connects the sensing element to a downhole unit whereby parameters of the downhole fluid are measured.

Abstract: 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.

Abstract: An optical window assembly of an optical sensor of a downhole tool positionable in a wellbore penetrating a subterranean formation. The downhole tool has a housing with a flowline therethrough to receive downhole fluid therein. The optical sensor is positionable about the flowline to measure light passing therethrough. The optical window assembly includes a tubular sensor body positionable in the housing (the sensor body having a sensor end and a flanged signal end with a passage therethrough), an optical window positionable in the passage of the sensor body to pass the light from the flowline to the optical sensors, a seal disposable about the sensor body, and a backup ring disposable about the sensor body between the flanged signal end and the seal to support the seal about the sensor body whereby the downhole fluid is prevented from leaking between the seal and the sensor body.

Abstract: 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.