Abstract: A transmitter arranged in a tire includes a transmitting section, which has a terminal, and a pressure switch. The pressure switch includes a hollow box and a passage that causes an interior of the box and an interior of the tire to communicate with each other. The box includes a conductive deforming portion, which is separate from the terminal when the difference between the pressure in the box and the pressure in the tire is less than a predetermined value and is elastically deformed to contact the terminal when the pressure in the box is higher than the pressure in the tire at least by the predetermined value. The transmitting section transmits a warning signal that causes a tire pressure warning device to issue a warning in response to contact between the deforming portion and the terminal.

Abstract: A system for tire pressure monitoring has a tire valve for disposition on a rim of a vehicle and includes a tire valve stem and a tire valve base, a holding means being disposed on the tire valve base and a tire pressure monitoring unit having a housing in which a pressure sensor for measuring the tire pressure and a transmitter for wireless transmission of tire pressure data are disposed. The tire valve and the housing of the tire pressure monitoring unit can be fastened by means of a fastening element which is implemented in one piece or of the same material with the housing and which interacts with the holding means. The holding means and the fastening element are implemented such that a movement of the tire pressure monitoring unit on the tire valve base is only possible in the direction of a rim well.

Abstract: Provided are a pressure difference sensor, and a manufacturing method and an application thereof. A manner of bonding three layers of wafers is adopted, and the sensor includes an upper structure, an intermediate structure and a lower structure. Each of the upper structure and the intermediate structure is manufactured by a silicon-on-insulator (SOI) wafer, the lower structure is manufactured by patterned doped intrinsic silicon; and a lead pad of each of the upper electrode, and the intermediate electrode and the lower electrode is located on a corresponding one of three-stepped steps at a side of the pressure difference sensor. Annular through holes are formed around the upper electrode and the lower electrode. A constant capacitance of a capacitance signal outputted by an upper capacitor of the sensor by extending an electric field line path of the constant capacitor part.

Abstract: A method is provided of calculating the total amount of artificial precipitation in a seeded area compared to a non-seeded area, which is capable of increasing the reliability of quantitative determination of seeding effect, observation data, and numerical model prediction data obtained from artificial precipitation experiments, of increasing the amount of water resources through weather modification experiments, of accomplishing various effects (drought reduction, forest fire prevention, fine dust reduction, fog reduction, hail suppression, etc.

Abstract: A tire proposal system that proposes a tire of a vehicle to a user includes a processing unit that proposes an appropriate tire that is a tire appropriate for the vehicle based on a mileage and a driving time of each trip of the vehicle. With such processing, the appropriate tire is proposed to the user considering a traveling pattern (usage tendency) of the vehicle, which can be grasped from the mileage and the driving time of the each trip of the vehicle, thereby a tire appropriate for the traveling pattern of the vehicle can be proposed to the user as the appropriate tire.

Abstract: The present disclosure is directed to a tyre with a monitoring device fixed on an inner surface at a crown portion, wherein the monitoring device includes an electronic unit and an electric power supplier, wherein the electronic unit includes a sensor for detecting at least one of temperature, pressure, acceleration, deformation; a processing unit; a transceiver, wherein the monitoring device includes a flexible support on which the electronic unit and the electric energy supplier are fixed, and wherein an acute angle (A) formed between a main development direction (L) of the flexible support and a direction of intersection of the equatorial plane of the tyre with the inner surface of the tyre is greater than or equal to 20° and lower than or equal to 70°.

Abstract: There is disclosed an aircraft configured to collect air data, the aircraft comprising: a wing structure; a forebody, forward of the wing structure; an afterbody, backward of the forebody; a skin covering the wing, the forebody and the afterbody; at least one recess formed at the skin, the recess being configured to affect the pressure of air flowing at the recess; at least one ambient sensor port for measuring ambient air pressure at the skin; and at least one recess sensor port for measuring the air pressure at the recess.

Abstract: Disclosed herein is a technique of configuring flexible photovoltaic tracker systems with high damping and low angle stow positions. Under dynamic environmental loads implementing a high amount of damping (e.g., greater than 25% of critical damping, greater than 50% of critical damping) or a very high amount of damping (e.g., 100% or greater of critical damping, infinite damping) enables the flexible tracker system to prevent problematic aeroelastic behaviors while positioned in a low stow angle. The disclosed technique is further applied to a prototyping process during wind tunnel testing.

Abstract: An arithmetic model generation system includes a tire information acquisition unit, a position information acquisition unit, a wear amount calculator, and an arithmetic model update unit. The tire information acquisition unit acquires tire data including a temperature and pressure of a tire. The position information acquisition unit acquires position data for a vehicle on which the tire is mounted. The wear amount calculator includes an arithmetic model that generates an estimated wear amount of at least one groove of the tire, the wear amount calculator calculating the estimated wear amount of at least one groove of the tire by using the arithmetic model by inputting the tire data and the position data. The arithmetic model update unit updates the arithmetic model based on a wear amount measured by a tire measurement device external to the vehicle and the estimated wear amount.

Abstract: A pressure sensor includes a cylindrical member configured to be attached to a body having a fluid passage, and a pressure sensor unit connected to the cylindrical member for detecting a pressure of a fluid flowing through the fluid passage, wherein the cylindrical member is made of a nickel-molybdenum-chromium alloy material or a stainless steel material, wherein the pressure sensor unit includes a sensor body closed at one end with a diaphragm and a pressure detecting element for outputting displacement of the diaphragm as pressure, and wherein the sensor body is made of a cobalt-nickel alloy material, and is connected at an opening side end portion to one end portion of the cylindrical member.

Abstract: A tire inflation valve associable with a tire pressure monitoring system (TPMS) sensor includes a stem ending in a head equipped with a head body and an adjustable insert associable with the TPMS sensor by a connection element and hinged to the head body to rotate about a transverse axis and allow position adjustment of the TPMS sensor. The adjustable insert allows modifying inclination of the TPMS sensor according to different use conditions.

Abstract: A method for checking the tire pressure of a vehicle (1), which vehicle comprises at least one vehicle wheel (3) and a vehicle body (2) which is supported elastically on the vehicle wheel (3). The wheel includes a tire (7), filled with gas, on which wheel the vehicle stands on a subsurface (8). The vehicle body (2) is loaded with an additional mass and thereby the vehicle body is stimulated into a mechanical oscillation (16) relative to the subsurface (8). A response signal (A), that characterizes the mechanical oscillation (16), is measured and analyzed, whereby at least one response value that characterizes the current gas pressure in the tire is determined.

Abstract: A multi-antenna tire-pressure monitoring system with automatically positioning function includes tire-pressure sensors, a receiver and a central processing unit. The tire-pressure sensors are installed on tires of a vehicle, respectively, and each tire is installed with at least one tire-pressure sensor. Each tire-pressure sensor has a signal transmitting unit, the receiver includes two antennas and a built-in receiver control unit. A first phase angle and a second phase angle are formed between the signals transmitted from each tire-pressure sensor and the two antennas, the receiver control unit receives the first phase angle and the second phase angle, and the arithmetic unit calculates phase-difference parameter values, to determine the positions of the tires, the signal receiving unit built in the central processing unit receives and displays the information calculated by the arithmetic unit of the receiver, so as to complete positioning for the tires.

Abstract: An over-pressure protection system includes a main body housing defining a main body chamber configured to receive a fluid therein, wherein the main body housing comprises a spring, the main body housing configurable in a collapsed configuration and an expanded configuration; and a pressure sensor configured to measure a fluid pressure of the fluid, the pressure sensor configurable in an activated mode and a deactivated mode; wherein, in the collapsed configuration, the spring biases main body housing inward at an intermediate point of the main body housing such that the main body housing defines a substantially hourglass shape.

Abstract: A method for estimating an effective radius of a tire of a vehicle, the method may include (i) obtaining sensed information that reflects (a) a distance passed by the vehicle during one or more driving sessions, (b) a rotational speed of at least a wheel that comprises the tire during the one or more driving sessions, (c) values of tire radius affecting parameters during the one or more driving sessions, wherein the tire radius affecting parameters comprise a vehicle speed and at least some other tire radius affecting parameters; (ii) selecting at least one portion of the one or more driving sessions; and (iii) determining the effective radius of the tire of the vehicle based on (a) sensed information gained during the at least one portion, the sensed information comprises values of the tire radius affecting parameters during the at least one portion, and (b) one or more relationships between the effective radius of the tire and tire radius affecting parameters.

Abstract: An inflation manifold connected to dual pneumatic tires by air hoses provides a central location for tire inflation and location of pressure sensors. A hose block connected to dual pneumatic tires by air hoses provides a central location for location of pressure sensors. The pressure sensors may be TPMS sensors or a combination of TPMS sensor and pressure gauge.

Abstract: Disclosed is a method and device suitable for detection of and warning against tsunamis. The device is located in the water at sea. The device includes a vessel, a sensor for measuring a physical quantity of the surrounding water, a control unit inside the vessel and operatively connected to the sensor, and a communication element including a transmitter for communicating with an external receiver that the predetermined condition relating to the physical quantity is fulfilled. The device further includes a ballast tank inside the vessel. The interior of the ballast tank is connected to the outside of the vessel. A pump pumps water from the ballast tank to outside the vessel. The overall density of the device exceeds the density of the surrounding water when the ballast tank is filled, and is less than the density of the surrounding water when the ballast tank is empty of water.

Abstract: A baffle of an exhaust gas pressure sensor assembly is disposed at an exhaust manifold of an internal combustion engine and includes an exhaust gas pressure sensor configured to sense a pressure of exhaust gas at the exhaust manifold. The baffle includes a conduit, a plate disposed within the conduit separating the exhaust gas volume into a first portion and a second portion, and a plurality of apertures disposed through the plate and configured to provide fluid communication of the exhaust gas between the first portion of the exhaust gas volume and the second portion of the exhaust gas volume such that each of the plurality of apertures is centered radially outside of an inner passageway to a diaphragm of the exhaust gas pressure sensor.

Abstract: An air data probe includes a probe head defining a longitudinal axis between a forward tip and aft base. A port opening is defined in the forward tip. A first conduit is in fluid communication with the port opening to guide fluid flow from the port opening to a first chamber. The first chamber is downstream from the port opening. A second conduit, offset radially and circumferentially from the first conduit, is in fluid communication with the first chamber to guide fluid flow from the first chamber to a second chamber. The second chamber is downstream from the first chamber. The offset between the first and second conduits is configured to prevent particle ingestion from the port opening from entering the second conduit.

Abstract: A pneumatic pressure probe comprises an orifice tube extending through a plastic bushing that seals a pressure chamber. The orifice tube has a passage shaped substantially like a converging/diverging de Laval nozzle to reduce turbulence in fluid flow through the probe. More laminar fluid flow reduces noise and inaccuracy in the output of the probe. Laminar flow also reduces user dependent results. The plastic bushing and a specially shaped probe tip reduce extraneous fluid leakages from the probe.