Abstract: An interchangeable-object holding apparatus for an EUV metrology system for holding and providing an interchangeable object, which is intended to be used interchangeably within the EUV metrology system. A calibration device serves for calibrating a relative position of the interchangeable object in the interchangeable-object holder with respect to a calibration object of the interchangeable-object holding apparatus. The calibration device has holder abutment bodies, secured to the interchangeable-object holder, and calibration-object counter-abutment bodies, secured to the calibration object. At least one contact sensor of the calibration device serves for detecting a contact between the respective holder abutment body and the respective calibration-object counter-abutment body.

Abstract: The present disclosure relates to a method and a device for predicting ability of a temporary plugging agent to plug cracks and a storage medium, and includes the following steps: calculating a plane elastic modulus of a core through experiments, acquiring a maximum force load of a specimen, calculating rock fracture toughness through the maximum force load, manufacturing an artificial crack model and placing it in a core holder, preparing temporary plugging deflection fluid by selecting a temporary plugging agent, injecting the temporary plugging deflection fluid into the artificial crack so as to calculate apparent fracture toughness of the temporarily plugged crack, and finally calculating a fracture pressure of the temporarily plugged crack based on the calculated rock fracture toughness and the plane elastic modulus of the core. Through the above method, the present disclosure provides a standard fracture pressure calculation method.

Abstract: Provided is a level meter having a high degree of freedom in an installation place. The level meter includes a sensor unit and a controller that communicates with the sensor unit and supplies power. The sensor unit includes a signal generation unit that generates a transmission signal, a transmission unit that transmits a radio wave according to the generated transmission signal, a reception unit that receives the radio wave reflected by the object and generates a reception signal according to the received radio wave, and a sensor processing unit that measures a level of the object based on at least the reception signal. The controller includes a display unit that performs display according to the measured level and an operation unit for setting a parameter related to measurement of the level.

Abstract: A monitoring system for a system, may comprise: thickness sensors and vibration sensors disposed on the monitored system, controller processors coupled to the sensors to receive and geo-tag sensor data, communication devices for transmitting geo-tagged data, a communication device receiving the geo-tagged data, and servers to analyze the data from the sensors to determine, e.g., element thickness and/or vibration producing events, and to compare same to standardized exception data therefor; wherein when an exception exists, to generate and communicate an alert therefrom via a display, a human interface device and/or the communication device of the central facility. Additional sensors such as temperature sensors, strain gages, flow sensors, leak sensors and/or other sensors may also be disposed on the system, and data therefrom processed to determine exceptions.

Abstract: A water buoy data system transfers shoaling status. Water buoys sense water characteristics at a location. The water buoys wirelessly transfer data messages that indicate the water characteristics at the location for delivery to a computer system. The computer system receives the data messages wirelessly transferred by the water buoys that indicate the water characteristics at the location. The computer system generates and transfers the shoaling status for the location based on the water characteristics at the location.

Abstract: A simulator box for troubleshooting or testing an aircraft oxygen system and associated system and method are disclosed. The simulator box includes a connection port configured to be removably connectable to a transmission line of an oxygen line replaceable unit (LRU). The simulator box also includes a controller configured to mimic functionality of the oxygen LRU. The simulator box further includes a controller area network (CANBUS) configured to facilitate communication between the controller and the transmission line. Additionally, the simulator box includes a plurality of selectively-activatable indicia. Each one of the plurality of selectively-activatable indicia corresponds to one of a plurality of power characteristics. The plurality of selectively-activatable indicia are configured to generate an indicia when a corresponding one of the plurality of power characteristics is receiving a signal from the transmission line.

Abstract: A system and a method for carrying out stability tests on a vessel are provided. In order to assess the stability of the vessel, it is of utmost importance to know the position of its center of gravity, and in particular of its center of gravity in the vertical direction. The system and method disclosed herein provide stability tests that include determining the position of the center of gravity of a vessel ashore, i.e., without the vessel having to be put in the water. Stability tests can thus be carried out in the same shed in which the vessel is being built, without the vessel having to be transported to the nearest water basin. In addition, the stability tests can be carried out at any stage of the process of construction and set-up of the vessel, and may also possibly be repeated several times at subsequent stages of the process.

Abstract: A sensor includes a housing having a body and a plurality of ports, a plurality of diaphragms each disposed in one of the ports, and a package having a substrate and a sensor die attached to the substrate. The body has a first face, an opposite second face, and a plurality of passageways extending through the body. The ports extend from the first face of the body. The substrate is attached to the second face of the body and the sensor die is disposed in a sealed containing space defined in part by the substrate. The substrate has a plurality of substrate passageways extending through the substrate. The passageways of the body include a plurality of first passageways that communicate with the substrate passageways.

Abstract: Various embodiments of the teachings herein include an arrangement comprising: a sensor unit; a housing with a first end, a second end, a plurality of inlet openings, and an outlet opening; and an attachment apparatus for a fixed mechanical attachment of the housing to a wall at the first end of the housing. The outlet opening is not one of the plurality of inlet openings. The sensor unit is arranged at least partially inside the housing at a first distance from the first end and at a second distance from the second end. The first distance is greater than the second distance. The outlet opening is at a third distance from the first end and a fourth distance from the second end. The third distance is greater than the fourth distance.

Abstract: A combustion test rig is provided that includes a housing and a combustor test section. The housing includes a test chamber, a cavity, an inner wall and an outer wall. The cavity extends vertically between the inner wall and the outer wall. The inner wall is disposed vertically between the test chamber and the cavity. The inner wall includes an inner window. The outer wall includes an outer window. The combustor test section is disposed within the test chamber. The combustor test section includes a combustion chamber, a first liner, a second liner and a bulkhead. The combustion chamber extends vertically between the first liner and the second liner. The first liner is disposed vertically between the combustion chamber and the inner wall. The first liner includes a liner window. A line of sight extends sequentially through the outer window, the inner window and the liner window into the combustion chamber.

Abstract: A device for remote detection and reporting of fluid properties. A float has a sensor array for detecting the temperature of a fluid and visually transmitting the temperature to a user. The float has at least one side arm and at least one lower arm for detection of fluid properties, where the lower arm has a ballast and a gas bladder for orienting and stabilizing the float. The float, the side arms, and the lower arm are made of a thermally conductive plastic and coated with a thermochromic compound optimized for visually reporting the temperature of a fluid via change in color. The device enables the user to remotely and visually obtain the temperature of a fluid in a closed container.

Abstract: An encoder wheel for an internal combustion engine, having six indicator elements, which are arranged spaced apart from one another in the circumferential direction with respect to a rotational axis of the encoder wheel on a main body of the encoder wheel. Flanks arranged in the same direction of the indicator elements are arranged equidistantly to one another in the circumferential direction. The indicator elements each have one of three different indicator element extensions in the circumferential direction.

Abstract: A modular flow-cell unit includes a mechanical fixing interface configured for receiving a further modular flow-cell unit and also includes a fluid interface configured for receiving fluid from the further modular flow-cell unit or for transferring fluid to the further modular flow-cell unit. The modular flow-cell unit is configured to be connected to the further modular flow-cell unit for a flow-cell assembly including a first modular flow-cell unit and a second modular flow-cell unit. The modular flow-cell unit includes a lateral plate and a protruding edge. The modular flow-cell unit can be connected via a connection element insertable into the protruding edge of each of the modular flow-cell units.

Abstract: An erosion estimation method is for estimating a degree of progress of erosion of a last-stage rotor blade of a steam turbine. The erosion estimation method includes: sampling supplied water containing a substance to be detected, which is included in a material constituting the last-stage rotor blade, from a water supply line that is connected to the steam turbine; measuring a concentration of the substance; and estimating the degree of progress of the erosion of the last-stage rotor blade based on the concentration of the substance.

Abstract: The present disclosure provides an underground facility position contrast system S, which includes: a scattered light intensity distribution measurement device 1 for measuring, when an earthquake vibration is applied to an optical fiber F laid underground, a change over time in a scattered light intensity distribution in a longitudinal direction of the optical fiber F; and an underground facility position contrast device 2 for measuring a change over time in a distortion response distribution in the longitudinal direction of the optical fiber F based on the change over time in the scattered light intensity distribution in the longitudinal direction of the optical fiber F, estimating an underground facility state of the optical fiber F based on the change over time in the distortion response distribution in the longitudinal direction of the optical fiber F, and associating the underground facility position of the optical fiber F with a longitudinal distance of the optical fiber F.

Abstract: Provided are a testing system and a testing method for supercritical carbon dioxide continuous flow corrosion. The testing system includes a gas supply system and a closed-loop testing system loop. The testing system loop includes: a circulation pump providing a power of boosting and flowing for a circulation of liquid carbon dioxide in the testing system loop; a flow meter used to measure a flow rate of the liquid carbon dioxide; a heater used to transform the liquid carbon dioxide into a carbon dioxide gas; a test section used for storing a sample and performing a continuous corrosion test; a regenerator used to exchange heat with the tested carbon dioxide gas; a condenser used to condense the heat-exchanged carbon dioxide gas; and a circulation tank used to provide the liquid carbon dioxide for the testing system loop, recycle the liquid carbon dioxide, and form a closed-loop testing system loop.

Abstract: The present invention relates to an air filter leak detection system for use in air circulation systems. The system comprises a control device, an actuator, and at least one sensor capable of measuring airflow velocity or air pressure. The control device periodically executes a computer program stored in its memory to activate the actuator to sequentially position the sensor at multiple locations across the filter surface to ensure full coverage. At each location, the sensor measures a leak detection parameter, which is compared by the control device against a threshold value which may be determined as an average of previously measured values. When a leak is identified based on the comparison, the system generates and transmits an alert to a user device, including the precise location of the leak. This system enables continuous, in-situ monitoring of filters, detecting both the occurrence and position of leaks without interrupting system operation.

Abstract: A semiconductor circuit arrangement includes a substrate, at least two first stress-sensitive elements in a first region of the substrate and at least two second stress-sensitive elements in a second region of the substrate. The first stress-sensitive elements each have an electrical characteristic which is dependent on a first component and a second component of a mechanical stress tensor in the first region. The second stress-sensitive elements each have an electrical characteristic which is dependent on a first component and a second component of a mechanical stress tensor in the second region. The semiconductor circuit arrangement includes a measuring circuit configured, based on the respective electrical characteristics of the first stress-sensitive elements and of the second stress-sensitive elements, to determine a stress difference between the first components in the first and second regions and a stress difference between the second components in the first and second regions.

Abstract: A flexible wall device and method for measuring gas permeability coefficient and gas diffusion coefficient of unsaturated soil includes a gas washing device, a confining pressure-volume change system, a drying-wetting cycle control system and a gas measuring device. The drying-wetting cycle control system includes a humidity controller and valves. The gas measuring device includes a top lid, a cylindrical wall, a base, an upper chamber and a lower chamber. The top lid, the cylindrical wall and the base are connected by bolts and nuts, and the base has four passages, which are respectively connected to the gas washing device, the confining pressure-volume change system, the drying-wetting cycle control system and the gas measuring device, between the base and top lid are sequentially arranged from bottom to top as the lower chamber, lower perforated plate, lower permeable stone, sample, upper permeable stone, upper perforated plate, upper chamber, and control rod.

Abstract: The invention relates to a test stand (100) for a powertrain of a motor vehicle (20). The test stand includes at least one loading motor (110) with a motor housing (111) and a motor shaft (112), at least one torque sensor (120), and at least one static module (130), wherein the motor shaft (112) is designed to be drivingly connected to a hub (21) of the motor vehicle (20) and wherein the torque sensor (120) is designed to detect a torque produced by the loading motor (110). The test stand (100) according to the invention is distinguished in that the at least one torque sensor (120) is arranged on the motor housing (111) in such manner that it blocks a rotation movement of the motor housing (111) relative to a substrate (119) and supports the torque via the motor housing (111) on the substrate (119).