Abstract: The present disclosure relates to methods for monitoring the health of a battery cell. Specifically, the method includes receiving, by a controller communicatively coupled a pressure sensor positioned proximate to a battery housing having an initial volume and an initial shape and containing a battery cell, a pressure value indicative of a current volume or a current shape of the battery' housing. The pressure sensor is configured to measure the pressure value indicative of the current volume or the current shape of the battery' housing. The method also involves comparing, by the controller, the pressure value to a predetermined threshold pressure value. The method further involves adjusting, by the controller and based on the comparison, at least one parameter associated with operations of the battery cell.

Abstract: Embodiments described herein provide methods and apparatus to determine water-to-liquid ratio and water volume fraction for high gas-volume-fraction wet-gas flows or multiphase flows.

Abstract: A gas sensor includes a housing including a locking step part, a sensor body including a locked part locked to the locking step part, a sealing member filled between an inner periphery of the housing and an outer periphery of the sensor body on a base end side of the locked part, an insulating member disposed on the base end side of the sealing member, and a circular disc spring pressing a base end surface of the insulating member. The housing includes a caulking part caulking the circular disc spring to cover the circular disc spring. The elastically compressed circular disc spring is disposed between the caulking part and the insulating member. At least part of a base end side pressing part, at which the caulking part presses the circular disc spring, is disposed between an inner and outer periphery edges of the base end surface of the insulating member.

Abstract: This invention relates to a resonant frequency vibrational test and a method of subjecting a component to such a resonant frequency vibrational test.

Abstract: A monitoring apparatus for monitoring a multiphase flow in a pipe using magnetic induction tomography, the apparatus comprising a tubular member adapted for fitting around a pipe defining a flow conduit, wherein the tubular member has outer and inner tubular surfaces surrounding a central longitudinal axis of the tubular member, the inner tubular surface defining a central bore extending along the central longitudinal axis for receiving a pipe therealong, wherein the outer tubular surface has a polygonal cross-section and is comprised of an annular array of a plurality of planar faces, each planar face extending parallel to the central longitudinal axis, wherein at least two of the planar faces each includes a respective coil mounting portion on which is mounted a respective electrical coil, wherein the coil mounting portion comprises a recess in the tubular outer surface which receives a respective electrical coil.

Abstract: When counting a pulse signal, in order that the communication load and data processing load be suppressed and measurement accuracy be maintained, a counter unit (2) comprises: a measurement unit (21) which counts the number of pulses of a pulse signal, and thus measures an actual value; a comparison unit (22) which determines if the actual value and a target value match; a time information processing unit (23) which, if there is a match, sets the time of the actual value as target time information; and an output unit (24) which outputs the target time information, in a prescribed communication cycle, to an external device.

Abstract: The present disclosure provides a leak test device, including: a test platform, the test platform being configured to carry and place a polishing head to be tested for leak, the polishing head being divided into one or more independent partitions, each of the partitions having a chamber correspondingly, and each chamber having vents correspondingly; an upper cover for sealing the chambers, the upper cover being located on the side of the chambers away from the test platform; and a movable device, the movable device being movable on a surface parallel to the test platform, movable in a direction perpendicular to the test platform, and also adapted to apply pressure on the upper cover so that the upper cover seals the chambers.

Abstract: An apparatus for monitoring a fluid flow in a pipe using electromagnetic velocity tomography (EVT) which can incorporate capacitively-coupled electrodes which avoid any direct physical and electrical contact between the process fluid to be monitored and the electronics for processing the flow induced voltages, yet which can provide highly accurate output data for processing using electromagnetic velocity tomography (EVT) to produce images of the fluid flow.

Abstract: The subject disclosure relates to power failure simulations, for example to test lighting systems, such as emergency lighting units or lighted signage. In some aspects, a pressure monitoring process of the disclosed technology can include steps for receiving a plurality of differential pressure measurements from the pressure sensor, determining whether to transmit pressure information to a management system based on at least two differential pressure measurements received from the pressure sensor, and transmitting the pressure information to the management system if a difference between the at least two differential pressure measurements exceeds a predetermined threshold. Systems and computer-readable media are also provided.

Abstract: The present disclosure relates to chain monitoring systems and methods. In particular, the chain monitoring system is configured to mount onto a portion of a chain and measure one or more parameters associated with one or more characteristics of the chain. The measured parameters are processed by the chain monitoring system and/or transmitted to a remote system for analysis. The analysis may be used to determine a characteristic and/or change in the characteristic of the chain. In some examples, the characteristic is an elongation value associated with the chain, which can be transmitted to a networked system for analysis, display, and/or control. In some examples, a sensor can be employed to measure one or more characteristics of the chain. The sensor may include, but is not limited to, a strain gauge, an accelerometer, an optical, a sonic, and/or a magnetic sensor.

Abstract: A water flow valve positioned within a waterline preferably just past a building's water meter. The valve compresses air bubbles into the water at the point where the water enters the meter, thus improving the accuracy of the meter reading. The internal passageway of the valve is non-linear and causing the water traveling therethrough to go through a plurality of turns. A blocking disk and spring are used to close off communication between a first portion of the internal passageway and a second portion of the passageway in a valve closed position. With enough water flow pressure the spring is compressed which causes the blocking disk to retract and allow water to travel through the passageway, while creating the backpressure in the waterline to collapse the air bubbles prior to the bubbles being read by the water meter. A laminar flow for the water can also be created which can reduce the wear and tear on the water meter possibly extending the useful life for the water meter.

Abstract: Disclosed is a force sensor. More particularly, the force sensor includes a first permanent magnet layer; a magnetic tunnel junction disposed on the first permanent magnet layer and configured to have a preset resistance value; and a second permanent magnet layer disposed to be spaced apart from the magnetic tunnel junction, wherein the second permanent magnet layer moves in a direction of the first permanent magnet layer when pressure is applied from outside, the preset resistance value of the magnetic tunnel junction is changed when a magnetic field strength formed between the first permanent magnet layer and the second permanent magnet layer becomes a preset strength or more according to movement of the second permanent magnet layer, and the force sensor senses the pressure based on a change in the preset resistance value.

Abstract: Tank-installable switches for installation through a thief hatch port on a tank. In some embodiments, the switch may comprise a tubular body and a liquid level sensor. The liquid level sensor may include: a detector; a float in and moveable along a length of the lower end; and a rod connecting the float to the detector. The liquid level sensor may be configured to sense a liquid level relative to the lower end and further configured to generate a signal when at least a maximum selected liquid level is sensed.

Abstract: An online detection device and method for a piezoelectric device. The device comprises an elastic wave sensor, a sell-detection circuit, a working circuit, a switch circuit and a control chip. The switch circuit is connected with the elastic wave sensor, the self-detection circuit and the working circuit. The sell-detection circuit is connected with the control chip and is used for, When being connected to the elastic wave sensor, generating, a self-detection signal according to the capacitance of the elastic wave sensor. The working circuit is connected with the control chip and is used for, when being connected to the elastic wave sensor, forming a touch detection circuit and detecting an external touch by means of the elastic wave sensor so as to obtain a detection signal.

Abstract: Disclosed herein is a stress sensor that includes a stress detection layer including a laminated body including a first ferromagnetic layer, a first non-magnetic layer, a second ferromagnetic layer, and an antiferromagnetic layer stacked one on another. The antiferromagnetic layer includes Mn, and the magnetization direction of the second ferromagnetic layer is fixed by the exchange bias caused by the exchange coupling with the antiferromagnetic layer. The stress sensor detects a stress by an electric resistance depending upon a relative angle between magnetization directions of the first ferromagnetic layer and the second ferromagnetic layer, the relative angle changing depending upon an externally applied stress.

Abstract: A sensor apparatus and a method of operating the sensor apparatus can include one or more sensors and a circuit board, wherein the one or more sensors can include a rotatable component (e.g., pulse disk, crank, pin, shaft, etc), and an angular circuit board assembly that maintains the circuit board in an angular position with respect to the rotatable component in an arrangement that allows the rotatable component to dive through the circuit board. The sensor can be, for example, a magnetic sensor, a light emitting diode or a photo diode. The sensor apparatus can include a flow channel and the rotatable component can oscillate to provide a measurement of a flow of fluid through the flow channel. The sensor apparatus can be used for the mechanical/electrical detection of pulses of a rotary motion.

Abstract: Exemplary backpressure monitoring apparatuses may include a fluid supply source having a fluid port. The backpressure monitoring apparatuses may include a flow control mechanism fluidly coupled with the fluid port. The backpressure monitoring apparatuses may include a delivery tube fluidly coupled with the flow control mechanism and the fluid port. The backpressure monitoring apparatuses may include a pressure differential gauge fluidly coupled with the delivery tube. The pressure differential gauge may include an interface mechanism that is engageable with an outlet of a fluid flow device.

Abstract: A craftwork accessory may provide a portable and/or easy-to-use tool to help users accurately and repeatedly apply stamp impressions and the like to items such as cardstock. The accessory may include a base portion, one or more elevated side portions and cover portion. The side portions may define a workspace for arranging the item. The cover portion may be movably attached to the base portion or a side portion, for example, by one or more hinges. In operation, the item and stamp may be aligned in the workspace and the cover portion may be pressed onto the stamp to stick the stamp to the cover portion. The cover may then be opened, the stamp may be inked, and the cover portion may be closed and pressed onto the item to stamp the item. The accessory may include alignment indicia on the base portion, side portions and/or cover portion to facilitate placement of the item and/or stamp. The accessory may also include fastening mechanisms, such as magnetic elements, to facilitate placement of the item and/or stamp.

Abstract: A first liquid sending controller of an analysis control device controls a first liquid sender such that a mobile phase is supplied to a fluorescence detector through an analysis column and a junction during an analysis of a sample. A sample introduction controller controls a sample introducer such that the sample is introduced into a mobile phase by the sample introducer at a position farther upstream than the analysis column during the analysis of the sample. The second liquid sending controller causes a second liquid sender to start supplying a fluorescent reaction liquid such that the fluorescent reaction liquid arrives at the junction later than a point in time at which supply of the mobile phase starts and before the sample introduced into the mobile phase arrives at the junction during the analysis of the sample. A generator generates a chromatogram based on an output signal of the fluorescence detector during the analysis of the sample.

Abstract: A sensor device includes an excitation magnet which generates an alternating excitation magnetic field, an energy generator having a pulse wire module in which electric energy pulses are generatable via the alternating excitation magnetic field, at least one sensor element which senses a physical variable and which provides a sensor signal, an evaluation unit which evaluates the sensor signal, and a wireless data interface which is connected to the evaluation unit via a data connection. The at least one sensor element and the evaluation unit are each electrically connected to the energy generator and are suppliable with an electric energy thereby.