Abstract: A pressure sensor element includes a die; a cavity and a trench formed in one surface of the die and defining therebetween a partition wall integral with and formed of the same material as the die; and a membrane formed on the die and covering the cavity and the trench.

Abstract: The present disclosure provides systems and methods for tracking system parameters in each of two or more circulatory systems, such as in a dual gradient drilling system. The systems and methods may include defining each of multiple circulatory systems and simultaneously tracking one or more system parameters for each circulatory system. Systems and methods may further include tracking a discrete portion of fluid circulating in each circulatory system, and associating one or more system parameters with each tracked discrete portion of fluid. Such association may be maintained as each portion of fluid circulates in each respective circulatory system.

Abstract: The present technology provides an impact test device and method. The rotational speed of a rotary drum with a rubber sample attached on the outer surface is set to a desired rotational speed, the impact cycle for the surface of the rubber sample of the contact member by the repeat-impact mechanism is set to a desired cycle, the impact load by the contact member is set to a desired impact load by a weight member, a desired contact member is selected from among the plurality of contact members with different specifications, and the contact member is repeatedly made to collide with the surface of the rubber sample by rotating a vertical excitation roller and pivoting the arm portion in the vertical direction with a rotation shaft.

Abstract: The present disclosure relates to a flat apparatus for measuring volume of a substance formulated in any or combination of a solid formulation, a liquid formulation, a semi-solid formulation, a semi-liquid formulation. The apparatus has a surface with defined measurement markings, hinges configured to bend the apparatus according to determined by marking of measurements and create predetermined capacity to hold a substance.

Abstract: A device for measuring liquid volume in a container, wherein the measuring device includes a compression member, which is in sealed connection with a container to be detected, forms a sealed space in the container, and compresses gases in the sealed space under the effect of an external force, and the compressed volume value of the gases is a predetermined value; a pressure detector, which is disposed on the compression member, and configured to measure the pressure values of the gases in the container before and after compression; and a controller. A container and a method for measuring liquid volume in a container is further provided.

Abstract: A measurement device has two electrodes in the liquid forming a capacitor the capacitance of which depends on the height of the liquid, a microcontroller connected to an electrode and having a capacitance determination circuit for determining first and second values of the capacitance of the capacitor respectively during charging and discharging of the capacitor, an oscillator circuit for generating signals at a reference frequency when the electrodes are not connected to the microcontroller, then at a variable frequency dependent on the height of the liquid when the electrodes are connected to the microcontroller. The microcontroller further includes a programmable logic device configured into a comparator circuit, and a frequency determination circuit connected to the programmable logic device so as to determine the variable frequency from the reference frequency and from the signals of the programmable logic device.

Abstract: A sensor for determining liquid level in a liquid reservoir can include a primary inductor and a secondary inductor to be associated with sides of the reservoir that changes shape as a volume of liquid changes or is displaced within the liquid reservoir. The sensor can include an electrical power source to inductively couple the primary inductor and the secondary inductor. The liquid level sensor can include an inductive coupling measurement device associated with the primary inductor and/or the secondary inductor to measure a characteristic indicative of the inductive coupling of the primary inductor and the secondary inductor (e.g., a distance between inductors). As liquid volume changes and the reservoir deforms, the inductors move relative to each other and a voltage change occurs to determine a liquid level in the reservoir. A sensor kit is provided.

Abstract: A rigidity measurement device of a tread ring comprises a support jig for detachably holding a tread ring unit. The support jig has an open part for deformably exposing a measurement area, which is one portion of the tread ring, to the exterior, and a restraining part for essentially non-deformably restraining a non-measurement area, which is an area other than the measurement area of the tread ring. The restraining part inhibits deformation of the non-measurement area, whereby stress is no longer generated in the non-measurement area and the rigidity of the measurement area alone can be measured.

Abstract: In order to provide a tire inspection apparatus which is capable of identifying, when performing an appearance inspection of a tire, a location of a rubber burr from a captured image of a tire side and avoiding detection of the rubber burr as a defect in a subsequent inspection step using image processing, the tire inspection apparatus is provided with a storage unit for storing a model pattern of a molded object to be molded on the tire side to be inspected and a master image of the tire side, the master image being prepared when the molded object(s) and an unnecessary molded object(s) are molded together as a conforming article, a model pattern locating unit for locating the model pattern on the captured image of the tire side to be inspected in a position of the captured image showing a highest degree of agreement, and an unnecessary molded object location identifying unit for identifying a location of the unnecessary molded object from the captured image by comparing the position of the model pattern loca

Abstract: A pressure sensor device with a MEMS piezoresistive pressure sensing element attached to an in-circuit ceramic board comprises a monolithic ceramic circuit board formed by firing multiple layers of ceramic together. The bottom side of the circuit board has a cavity, which extends through layers of material from the ceramic circuit board is formed. A ceramic diaphragm, which is one of the layers, has a peripheral edge. The diaphragm's thickness enables the diaphragm bounded by the edge to deflect responsive to applied pressure. A MEMS piezoresistive pressure sensing element attached to the top side of the ceramic circuit board generates an output signal responsive to deflection of the ceramic diaphragm. A conduit carrying a pressurized fluid (liquid or gas) can be attached directly to the ceramic circuit board using a seal on the bottom of the ceramic circuit board, which surrounds the opening of the cavity through the bottom.

Abstract: An apparatus for determining or monitoring the fill level of a fill substance located in a container in a process, comprising: a signal producing unit; an in-coupling/out-coupling unit an antenna unit; wherein the antenna unit has a hollow conductor and an antenna element widening toward the fill substance and the antenna unit transmits high-frequency measuring signals in the direction of the surface of the fill substance and receives echo signals reflected on the surface of the fill substance; and a control/evaluation unit, which ascertains the fill level of the fill substance in the container based on travel time of the measuring signals. In or on the antenna unit a process isolation is provided, which is at least approximately transparent for the high-frequency measuring signals and which protects the in-coupling/out-coupling unit against influences of the process.

Abstract: A monitoring system is disclosed for use with a rolling chassis of a vehicle. The monitoring system may include a tire sensor configured to generate a first signal indicative of a current tire condition of the rolling chassis, and a load sensor configured to generate a second signal indicative of an actual load placed on the rolling chassis. The monitoring system may also include a controller in communication with the tire sensor and the load sensor. The controller may be configured to determine based on the first signal a theoretical load that the rolling chassis is capable of supporting given the current tire condition. The controller may also be configured to make a first comparison of the actual load with the theoretical load, and to selectively generate a first alert based on the first comparison.

Abstract: A wind tunnel device defines a cyclical tunnel to receive continuous airflow. Airflow is delivered through the tunnel to a testing region that includes a first portion carrying an arm including a spray tip configured to spray particulates in the testing region at an angle, and a second portion including an enlarged cutout region configured to receive the angled sprayed particulates. As airflow carries the angled spray particulates into the second portion, the enlarged cutout region enables the spray particulates to pass through and exit the second portion of the testing region. Analysis in the second region may be conducted through transparent walls free of openings to minimize exposure of the spray particulates to the exterior of the device. A scrubber is adapted to extract spray mist from the airflow as the airflow exits the testing region and is re-circulated through the cyclical tunnel.

Abstract: A pressure sensor comprising a housing, a diaphragm wafer, and an isolator configured to absorb lateral stress. The diaphragm wafer includes a fully exposed diaphragm, a fluid contact surface, a sensing element, and a support portion, where the support portion and the contact surface define a cavity. The isolator extends laterally from the support portion to the housing. The pressure sensor is easily drainable, eliminating the buildup of particulates, and the diaphragm can be directly wire-bonded to printed circuit boards, eliminating the need for extensive electrical feedthrough.

Abstract: A standing position evaluation apparatus includes a center-of-gravity position detection unit that detects a head-center-of-gravity position that is a position of a center of gravity of a head of a subject in a standing position projected onto a floor surface and a body-center-of-gravity position that is a position of a center of gravity of a body of the subject in the standing position projected onto the floor surface, and an evaluation unit that evaluates a standing position balance of the subject by using the detected head-center-of-gravity position and the detected body-center-of-gravity position.

Abstract: It should be enabled to transmit tire-pressure information also on a spare wheel to a tire-pressure notification device, while suppressing battery consumption. A transmission controller of a sensor unit makes a transmitter periodically transmit wheel information, when an acceleration Gx detected by an acceleration sensor is larger than a running-judgment threshold value 5G. The transmission controller accumulates a point P set up according to the acceleration Gx in a predetermined period when the acceleration Gx is not more than the running-judgment threshold value 5G, and makes the transmitter transmit the wheel information when an accumulated value of the point P accumulated in the predetermined period is larger than a running-track-record-judgment threshold value.

Abstract: A test apparatus includes a linear motion generator, an airbag, a plate, a platform, an anthropomorphic test device, and a crushable member. The airbag is spaced from the linear motion generator. The plate is moveable by the linear motion generator toward the airbag, and the platform is fixed relative to the plate. The anthropomorphic test device is adjacent the airbag and includes an end coupled to the platform. The crushable member is disposed between the plate and the platform, and the crushable member is deformable by the plate. During operation of the test apparatus, the linear motion generator moves the plate into the crushable member to slow movement of the anthropomorphic device toward the airbag. The crushable member crushes to simulate the forces on the anthropomorphic test device from a vehicle side impact.

Abstract: Techniques and mechanisms for detecting and evaluating grip by a user operating a handheld tool. In an embodiment, the tool includes a handle, one or more pressure sensors disposed in or on the handle, and an attachment arm. An output from the one or more sensors is generated while a user-assistive device is coupled to a distal end of an attachment arm of the tool. Logic of the tool calculates a grip metric based on the sensor output, and the tool transmits, based on the grip metric, a signal including medical diagnostic information. In another embodiment, the user-assistive device includes a utensil attachment or a personal hygiene attachment.

Abstract: Methods and systems for improving tire uniformity through identification of uniformity attributes, such as process harmonics are provided. More particularly, uniformity measurements acquired according to a non-uniform sampling pattern can be obtained and analyzed to estimate one or more process harmonics (e.g. the magnitude of the process harmonic). The non-uniform sampling pattern can specify the acquisition of uniformity measurements in a varying or irregular manner about one or more revolutions of the tire. For instance, the non-uniform sampling pattern can specify a random spacing between data points. The uniformity attributes estimated from the uniformity measurements can be used to modify the manufacture of tires to improve tire uniformity.

Abstract: A dynamic tire pressure sensor system for a bike comprises a dynamic tire pressure sensor device and a user receiving carrier wherein the dynamic tire pressure sensor device comprises at least a tire pressure sensor module, a processing module and a transmission module: the tire pressure sensor module transmits tire pressure change data to the processing module; the processing module either performs data operation independently or transmits tire pressure change data to the user receiving carrier from the transmission module for data operation in order to analyze pedaling cadences and pedaling forces during cycling and provide/display real-time sports information on the user receiving carrier.