Abstract: An optical fiber for measuring pressure comprising a core for guiding optical signals along a length of the core and a cladding layer including a plurality of stress applying parts disposed around the core. The plurality of stress applying parts are disposed parallel to and symmetrically around the core to induce intensified symmetric shear stress upon application of external pressure while preventing birefringence. The optical fiber provides improved strain sensitivity compared to a standard single-mode optical fiber.

Abstract: Apparatus and method for determining a characteristic of a material within a region. One apparatus includes a first plurality of electrodes, a stimulation monitor monitoring an electrical parameter at a plurality of other electrodes of said first plurality of electrodes in response to an applied stimulation signal, a monitor, and a controller. The stimulation monitor generating a received stimulation signal for each of said plurality of other electrodes. The monitor generating a series of data values, each data value being indicative of a phase difference and/or an amplitude relationship between the applied stimulation signal and the received stimulation signal associated with one of the plurality of other electrodes, said series of data values defining an electromagnetic fingerprint.

Abstract: A fluid connector comprises a body, an assembly interface arranged on and in the body, a pressure sensor, a cover, and a resilient element positioned between the cover and one face of the pressure sensor. The body has two fluid connection end pieces and an internal duct. The assembly interface comprises an orifice placing the internal duct in communication with the outside of the body, a first receiving area extending around the orifice, a second receiving area extending around the first receiving area, and attachment regions. The pressure sensor is in contact with the first receiving area via a first gasket. The cover is positioned on the pressure sensor and is in contact with the second receiving area via a second gasket to isolate the pressure sensor from the outside environment. The cover comprises side wings configured to cooperate with the attachment regions.

Abstract: A calibration method is provided including identifying the imaging area on each light panel with respect to each imaging device. A center position of the imaging area of each light panel for each imaging device is determined. An optimal optical center of the imaging apparatus using the center position of the imaging area of each imaging device is determined. A tube calibration tool is installed in a carrier on a track, and the carrier is moved on the track so that a center of the tube calibration tool is located at a closest location to the optimal optical center of the imaging apparatus. The center of the tube calibration tool is used to determine a center of a region of interest (ROI) for backlight calibration. Methods for health checking the calibration and apparatus used to carry out the calibration are provided as well as other aspects.

Abstract: A force sensor includes a resin substrate, an array substrate, a sensor layer, a common electrode, and a protective film that are sequentially stacked. The array substrate includes a stretchable base material stacked on the resin substrate, and an array layer stacked on the resin substrate with the stretchable base material interposed between the array layer and the resin substrate, and the stretchable base material includes a plurality of first extension parts extending in a first direction parallel to the resin substrate and arranged in a second direction parallel to the resin substrate and intersecting the first direction, a plurality of second extension parts extending in the second direction and arranged in the first direction, and a plurality of body parts provided at parts where the first extension parts intersect the second extension parts.

Abstract: A system for detecting hydrogen leaks within a vehicle includes a hydrogen sensor for generating data indicative of a level of hydrogen present within a compartment of the vehicle and a computing system. The computing system determines at least one of the level of hydrogen present within the compartment or a rate of change of the level of hydrogen present within the compartment and compares the determined at least one of the level of hydrogen present within the compartment or the rate of change of the level of hydrogen present within the compartment to a threshold value. When the determined at least one of the level of hydrogen present within the compartment or the rate of change of the level of hydrogen present within the compartment exceeds the threshold value, the computing system initiates a control action for reducing the level of hydrogen present within the compartment.

Abstract: An inspection system for a plurality of separable inspection objects, which may accommodate different inspection applications and facilitate the use of linear or straight sections in the conveying path. The inspection system may include a feed device for inspection objects, a conveying device for inspection objects, an inspection unit, and an ejecting device. The feed device is configured to feed the inspection objects to a feed position of the conveying device. The conveying device includes a plurality of receptacles, with each receptacle being configured and disposed such that exactly one inspection object of the plurality of inspection objects can be conveyed along a conveying path in said receptacle and that two respective inspection objects from the plurality of inspection objects have a spacing along the conveying path that is defined by the plurality of receptacles. The inspection unit is disposed at an inspection position on the conveying path.

Abstract: A miniaturized fiber Bragg grating (FBG) interrogation system may comprise a light source, a FBG sensor, and a photodetector. The FBG sensor may be configured to receive an optical signal from the light source, interact with a transmitted spectrum of the light source over a discriminating spectral domain, and generate a reflected optical signal representative of a change in a physical signal sensed by the FBG sensor. Additionally, the system may include a power management unit configured to reduce power consumption in order to prolong the lifespan of the system.

Abstract: A gravimetric verification system, method, and computer program product for automated detection and correction of reference density information based. An expected density of a fluid drug can be determined from the measured mass of a fluid drug and the intended volume of the fluid drug to be delivered to a medication container. The expected density can be compared to previously calculated densities for the fluid to verify the accuracy of a reference density value, verify the measurements and functional status of the measuring device for the fluid drug, and, in some instances, provide control or configuration commands to adjust one or more devices.

Abstract: A gas detection probe includes a shell and a detection element. The detection element includes a first element and a second element. The shell includes a first shell portion, a second shell portion, and a third shell portion. The second shell portion and the third shell portion are mated and formed on an outer periphery of the first shell portion. The shell has a first cavity and a second cavity. The first shell portion is in sealing engagement with the third shell portion. The second shell portion is provided with a guide hole portion communicated with the second cavity. The first element is accommodated in the first cavity. The second element is accommodated in the second cavity. The gas detection probe of the present disclosure is more beneficial to realize miniaturization. A manufacturing method of the gas detection probe is also disclosed.

Abstract: A capacitive pressure sensor includes a first electrode and a second electrode disposed on a surface of a folded flexible substrate. The first and second electrodes face each other and are separated from each other by a dielectric layer. The sensor can operate by generating an electrical signal related to a change in capacitance between the first and second electrodes. The change in capacitance results from a change in thickness of the dielectric layer due to an external pressure. The electrical signal can be transmitted from the capacitive pressure sensor to an external device.

Abstract: The present disclosure relates to a method for determining the necessity of an action and/or a success of an action involving water, especially drinking water, process water or waste water, including steps as follows: providing a retentate of a water filter present in a water conveying line, analyzing the retentate regarding at least one property and/or its chemical composition, and determining the necessity or success of the action and, in given cases, deriving the action from the analysis. Furthermore, the present disclosure relates to a system including a means for providing the retentate of a water filter in a water conveying line and a measuring/analytical means for performing the analysis.

Abstract: A measuring apparatus including at least one housing part including a shaped body made from a foam material, wherein the shaped body forms at least one ventilation channel including at least one fan so that at least one component of the measuring apparatus is coolable, wherein the shaped body includes at least one recess configured to receive the at least one component, wherein the at least one recess is adapted to a shape of the at least one component of the measuring apparatus.

Abstract: A sensor includes a base, and first and second resistance lines. The base extends in a direction intersecting with a central axis. The first resistance lines are arrayed in a circumferential direction on a surface of the base. The second resistance lines are arranged concentrically with the first resistance lines and between the first resistance lines in the circumferential direction on the surface of the base. In the first resistance lines, the number of regions of the resistance line along the circumferential direction is one or less, and the number of regions of the resistance line along a radial direction is one or less. The sensor is able to provide improved detection accuracy.

Abstract: The present invention provides systems and methods for determining the cleanliness of a sample, the method including impinging high pressure fluid pulses on a sample disposed in a chamber to liberate particles therefrom and quantifying a number of the liberated particles to determine the cleanliness of the sample.

Abstract: A liquid chromatographic apparatus which removes air bubbles during preparatory operation for apparatus startup includes a liquid feeding pump to feed a solvent, an injector to inject a sample into the solvent, a separation column to receive the solvent and the sample through the injector and separate the sample into components, a detector to detect the components supplied from the separation column, a pressure sensor to measure a pressure in a solvent flow channel of the liquid feeding pump, and a controller to control a purge operation for removing air bubbles in the solvent flow channel by the liquid feeding pump, determine whether a pressure change amount in the solvent flow channel measured by the pressure sensor during the purge operation is a specified change amount or larger, and complete the air bubble removal operation when the pressure change amount is the specified change amount or larger.

Abstract: A pressure detection element of a capacitive system includes a dielectric having two opposing surfaces including a first surface and a second surface, a conductor layer provided on the first surface of the dielectric, a conductive elastic member provided on the second surface of the dielectric, a spacer that positions the conductive elastic member at a predetermined distance from the second surface of the dielectric, and a pressing member configured to push the conductive elastic member toward the dielectric. An end surface of the pressing member that presses the conductive elastic member has a predetermined curvature, with an apex at a center of the end surface. A protrusion is provided at the apex at the center of the end surface of the pressing member.

Abstract: Systems for real-time wave monitoring, which provide real-time updates of wave conditions to users who wish to access the beach for leisure or sporting activities, are described. One example system includes a plurality of buoys and a transceiver. Each of the plurality of buoys includes a sensor array configured to continuously monitor one or more characteristics of the wave conditions, and the transceiver is configured to transmit, to a remote server, information corresponding to the one or more characteristics of the wave conditions over a wireless communication channel. The information from each of the plurality of buoys is combined with a user preference to provide a user with a message regarding the wave conditions in response to a user request, and a duration between the user request and transmission of the information from each of the plurality of buoys is less than a predetermined value.

Abstract: A method for manufacturing a sensor including a sensing element and a housing, the housing including an interior space, which is accessible through a housing opening, and the sensing element being situated in the interior space and being designed to detect a property and/or a composition of an ambient medium of the sensor. The method includes filling the interior space with a protective medium through the housing opening, the protective medium being designed to transfer the property and/or the composition of the ambient medium to the sensing element. The method includes fixing a preferably flexible diaphragm at or in the housing opening preferably for sealing the housing opening, the diaphragm including at least one diaphragm opening. The method includes sealing the at least one diaphragm opening.

Abstract: A measuring device and an optical fiber strain measuring jig thereof appropriately measure an attraction force distribution on a wafer held by an electrostatic chuck. The measuring jig includes a substrate configured to be held by the electrostatic chuck; and an optical fiber including therein reflection elements capable of reflecting light having a wavelength corresponding to strain of the substrate due to stress, and fixed to one surface of the substrate in a state in which the reflection elements are disposed at plural positions, respectively, on the one surface of the substrate.