Abstract: A temperature compensated differential pressure system is provided. The system includes a pair of flanges affixed together each having a flange diaphragm therein, wherein a plurality of capillary tubes extends between the pair of flanges and a pair of opposed remote diaphragm housings. The remote diaphragm housings include a remote diaphragm therein, wherein the remote diaphragm displaces a fill fluid in pressure capillaries to displace each flange diaphragm to detect a differential pressure between each location of the remote diaphragm housings. A compensating capillary extends from the remote diaphragm housings to an opposing flange diaphragm, wherein the compensating capillary is not in operable communication with the remote diaphragms. As such, any fluctuation in fill fluid volume of the compensating capillaries due to temperature fluctuations is applied to an opposing flange diaphragm to cancel temperature effects from the differential pressure determination.

Abstract: A jig for pressing a gas analysis monocell according to the present invention comprises: a first plate and a second plate which face each other with a monocell therebetween; a first auxiliary pad positioned between the first plate and the monocell; and a second auxiliary pad positioned between the second plate and the monocell, wherein the first plate and the second plate are formed of a thermosetting resin. When analyzing a gas generated from the monocell during a primary charge, the jig for pressing the monocell according to the present invention presses the thin monocell to prevent a gap from forming between electrodes due to the primary charge, and thus has an effect of deriving more reliable analysis results.

Abstract: A weld coupon destructive test device includes a support base. A plunger connected to the support base and movable between a first position and a second position along a length of the support base. A handle to operate the plunger between the first position and the second position. A header on the support base, the header configured to press a weld coupon between the header and the plunger, the header having a first support end and a second support end, the header having a depression formed between the first support end and the second support end. The weld coupon rests between the first support end and the second support end of the header, and the weld coupon is pressed into the depression formed between the first support end and the second support end of the header.

Abstract: Improved gas leak detection from moving platforms is provided. Automatic horizontal spatial scale analysis can be performed in order to distinguish a leak from background levels of the measured gas. Source identification can be provided by using isotopic ratios and/or chemical tracers to distinguish gas leaks from other sources of the measured gas. Multi-point measurements combined with spatial analysis of the multi-point measurement results can provide leak source distance estimates. These methods can be practiced individually or in any combination.

Abstract: Embodiments of the present disclosure provide a positioning system and positioning method. A reverse calibrator for respectively calibrating relative coordinates of at least three ultrasound generators; a processor for generating a carrier signal, multiplying the carrier signal with a spread spectrum pseudo random code to obtain ranging signal, controlling each ultrasound generator to emit ranging signal, and extracting acoustic characteristic parameter of the ranging signals; a device being positioned for capturing ranging signals emitted by each generator, extracting acoustic characteristic parameter of each of the captured ranging signals; determining an ultrasonic delay time of each ultrasonic ranging signal; calculating relative coordinates of the device.

Abstract: A tire wear state estimation system includes a tire that supports a vehicle. A sensor unit is mounted on the tire and includes a footprint centerline length measurement sensor, a pressure sensor, a temperature sensor, and electronic memory capacity for storing identification information for the tire. A processor is in electronic communication with the sensor unit and receives the measured centerline length, the measured pressure, the measured temperature and the identification information. A tire construction database stores tire construction data and is in electronic communication with the processor. The identification information is correlated to the tire construction data. An analysis module is stored on the processor and receives the measured centerline length, the measure pressure, the measured temperature, the identification information, and the tire construction data as inputs. The analysis module includes a prediction model that generates an estimated wear state for the tire from the inputs.

Abstract: Wind sensor devices, systems, and methods are provided in accordance with various embodiments. The wind sensor device may include: a first support ring; a second support ring; a first transducer coupled with the first support ring; a second transducer coupled with the first support ring; a third transducer coupled with the second support ring; and a fourth transducer coupled with the second support ring. A center of a face of the first transducer, a center of a face of the second transducer, a center of a face of the third transducer, and a center of a face of the fourth transducer may form four vertices of a tetrahedron, which may include an equilateral tetrahedron. The first transducer, the second transducer, the third transducer, and the fourth transducer are generally directed away from a center of the tetrahedron.

Abstract: A load indicator apparatus which is compact, portable and detachably mounted on the tie-rod. The load indicator apparatus includes a first reference fixture configured for attachment at a first position on the tie-rod, a second fixture configured for attachment at a second position on the tie-rod and an elongation gauge extending between the first reference fixture and the second fixture and configured to measure displacement of the second fixture relative to the first reference fixture during elongation of the tie-rod. A displacement transducer is connected to the second fixture to measure a capacitance value proportional to the loading acting on the tie-rod and transfers it to a load monitoring unit which translates the measured capacitance into a visual load reading and an electronic load output value.

Abstract: A mechanical gauge includes a stock panel with a first measurement scale, and a slide movably arranged relative to the stock panel. The first measurement scale has a series of marks spaced apart at regular intervals within a region of interest. The slide includes a second measurement scale adapted to selectively overlie the first measurement scale within the region of interest. The second measurement scale has a second series of marks spaced apart at regular intervals corresponding to the first series of marks of the first measurement scale. An elongated measurement probe is affixed to the slide and adapted for selectively extending into a groove formed in the tread of the vehicle tire.

Abstract: A rain gauge for measurement of rain fall. The rain gauge includes: a measurement chamber having an inlet port at one end and a drainage port at the other end, the drainage port being closed by a valve and programmable to be opened at predefined events to release water collected in measurement chamber; a funnel or collector adapted to receive rain fall opens into the inlet port; and an ultrasonic transducer for transmitting and receiving acoustic signals into measurement chamber. The ultrasonic transducer is programmable to determine the water level in measurement chamber. An automatic weather station including the rain gauge is also provided.

Abstract: Disclosed is a pressure sensing element that is formed using a semiconductor substrate, the pressure sensing element including: a frame; a diaphragm that is supported by the frame; and a piezoresistor that is arranged on the diaphragm. The diaphragm includes a trench and a plurality of beams, the beams are arranged such that the beams connect a portion around an edge of the diaphragm to a portion around a center of the diaphragm and the beams cross each other in the portion around the center of the diaphragm, and a beam that is each of the beams includes a narrow portion that has a first width and a wide portion that has a second width wider than the first width.

Abstract: Embodiments of the present invention provide a unique new approach to generating operating condition information used for assessing flow assurance and structural integrity. More specifically, apparatuses, systems and sensor housing assemblies configured in accordance with embodiments of the present invention utilize fiber optic sensors for enabling monitoring of operating condition information within one or more elongated tubular members within a subsea environment. To this end, such fiber optic sensors connected by lengths of optical fiber are strategically placed at a plurality of locations along a length of each elongated tubular member thereby allowing critical operating conditions such as strain, temperature and pressure of the elongated tubular member and/or a fluid therein to be monitored. A viscous media is used for mitigating attenuation associated with exposure of optical fiber exposed to forces generated by pressure within the subsea environment.

Abstract: Systems and methods for accurate measurement and transmission of water level parameters during weather events, such as floods, are provided. The solid-state system can effectively measure water level without utilizing moving parts, pumps, or floats and may implement an improved water level determination method that compensates for inherent sources of error. Additionally, the system may be comprised of a network of sensor units that can communicate weather measurements wirelessly via a hybrid mesh network consisting variously of wireless terrestrial radio, cellular, and satellite communication links. By doing so, the status of water level and other environmental parameters may be reported in real time to first responders and emergency planners.

Abstract: To provide a pressure sensor element and a pressure sensor that have stable pressure sensitivity without the need for improving the accuracy of alignment between a diaphragm and a holding member, a pressure sensor element includes a thin plate diaphragm, a holding member that holds the diaphragm, and one or more strain resistance gauges that are provided on a first surface of the diaphragm and which change in resistance values according to deformation of the diaphragm, in which the holding member has recesses that, formed on an annular first end surface facing the first surface of the diaphragm, cut out parts of an inner circumference of the first end surface, and the strain resistance gauges are disposed near the regions corresponding to the recesses on the first surface of the diaphragm.

Abstract: A sensor includes a body member, a volume change body, and a detection member. The body member has a flat plate-like shape, a first end in a first direction being supported, and a storage space opening at at least one of both end faces in a thickness direction. The volume change body, whose volume changes depending on an amount of a target, is supported by the body member so that at least a part of the volume change body is stored in the storage space. The detection member is in contact with a second end in the first direction of the body member, and detects stress caused by the change in the volume of the volume change body.

Abstract: A gas sensor includes a first electrode, a gas detecting layer disposed on the first electrode, and an electric-conduction enhanced electrode unit being electrically connected to the first electrode and the gas detecting layer. The electric-conduction enhanced electrode unit includes an electric-conduction enhancing layer and a second electrode electrically connected to the electric-conduction enhancing layer. The electric-conduction enhancing layer is electrically connected to the gas detecting layer and is made of an electrically conductive organic material.

Abstract: The invention relates to valve system for controlling a process fluid within a liquid processing system. The valve system comprises a valve arrangement, a pneumatic control system, and a connector unit. When the valve arrangement is connected to the connector unit, two or more valves are formed, such that the pneumatic control system controls an open/close or pressure control mode of the valves. A pump diaphragm system is disclosed, as well as a system for purifying a biological material that comprises the valve system or the pump diaphragm system. Also discloses are methods of using the valve system or the pump diaphragm system in a process for the purification of a biological material.

Abstract: Systems and methods for predicting, detecting, and/or mitigating a pipe freeze are provided. A system for analyzing water in a plumbing system includes a sensor that is configured to measure pressure within a pipe in the plumbing system as a function of time, and a processor that is configured to determine a state of water within the pipe by analyzing the pressure within the pipe as a function of time. The state of the water includes a prediction that the water within the pipe will freeze and/or a determination that the water within the pipe has frozen. The sensor is arranged at a first location within the plumbing system that is remote from a second location within the plumbing system that corresponds to the state of the water.

Abstract: A diaphragm pressure transducer includes a body having an outer surface and a diaphragm, a strain gauge including a resistive element located on the outer surface, a fluidic inlet, and a fluidic cavity enclosed by the body in fluidic communication with the fluidic inlet, the fluidic cavity having an upper surface. The diaphragm is located between the upper surface of the fluidic cavity and the outer surface of the body. The diaphragm includes a variable thickness across a region defined between the upper surface of the fluidic cavity and the outer surface located below the strain gauge.

Abstract: Provided is a tire information acquisition device that includes a sensor unit including a sensor that acquires tire information, a first band that is for fixing the sensor unit (1) to a rim (R) and has an adjustable band circumferential length by fastening another end reversibly with a fastening portion provided to one end, and at least one second band that fastens the sensor unit and the first band integrally.