Abstract: A magnetic-inductive flowmeter includes a measuring tube for carrying an electrically conductive medium, a magnetic field generator for generating a magnetic field passing through the medium, two electrodes for tapping a measuring voltage induced in the medium, a ground element electrically connected to the medium, and an evaluation unit. The electrodes are connected to the evaluation unit via electrode lines. The ground element is connected to the evaluation unit via a first ground line for potential equalization between the medium and a reference potential of the evaluation unit. The ground element is connected to the evaluation unit at least indirectly via a second ground line. The first and second ground lines are part of a monitoring circuit for monitoring the connection between the ground element and the evaluation unit. The evaluation unit is designed such that it monitors the connection between the ground element and the evaluation unit.

Abstract: A change of a magnetic flux density distribution adjacent to a regulating blade 9 opposed to a developer regulation pole is suppressed at a low cost, while suppressing influence to design latitude of magnetic poles. A position on the outer peripheral surface of the developing sleeve where the magnetic flux density in the normal line direction of the outer peripheral surface of the developing sleeve is a maximum value position. The position on the outer peripheral surface of the developing sleeve 8 corresponding to a center portion position of the half peak range of the magnetic flux density distribution of the developer regulation pole is called half peak center portion.

Abstract: An apparatus for testing a flexible screen. The apparatus for testing a flexible screen includes a slide rail, a reel, a clamping module and a drive module. The reel is fixed to one end of the slide rail. The axial direction of the reel is perpendicular to the extension direction of the slide rail. The flexible screen includes a first end and a second end which are disposed opposite to each other. The reel is configured to fix the first end of the flexible screen and rotate to drive the flexible screen to fit to the reel and coil around the reel. The clamping module is configured to clamp the second end of the flexible screen. The reel is further configured to rotate to drive, through the flexible screen, the clamping module to slide along the slide rail towards the reel.

Abstract: An image forming apparatus, including a process cartridge and a main body with an opening and a cartridge supporter is provided. The process cartridge includes a drum cartridge; a toner cartridge attachable to the drum cartridge; and a switching member switchable states in the process cartridge between a first state, wherein detachment of the toner cartridge is restricted, and a second state, wherein the toner cartridge is released from the restriction. The cartridge supporter is movable between a first position, wherein the cartridge supporter supports the process cartridge to be placed entirely in an inner space in the main body on an inner side of the opening, and a second position, wherein the cartridge supporter supports the process cartridge to be at least partly placed outside the inner space. When the cartridge supporter is in the second position, the switching member is at least partly placed outside the inner space.

Abstract: A metering tube assembly for regulating flow of a fluid is disclosed. The metering tube assembly can include a fluid inlet, a fluid outlet, and a plurality of stacked metering plates located between the fluid inlet and the fluid outlet, each of the plurality of stacked metering plates defining a fluid passageway having a length greater than a thickness of the metering plate, wherein the stacked metering plates are arranged such that a fluid flowing through the metering plates flows sequentially through the fluid passageways of the metering plates.

Abstract: A system for measuring gas flow generally including a passive acoustic wave generator disposed in a gas flow stream to passively generate an audio signal through vortex shedding, a sound capturing instrument disposed outside the gas stream to produce an electrical signal representative of the acoustic signal, a temperature sensor to obtain temperature measurements indicative of the temperature of the gas flow stream and a control system for determining the gas flow, such as velocity or flow rate, as a function of the acquired acoustic and temperature measurements. The acoustic wave generator includes a corrugated flow channel whose geometric design is so tuned to generate an acoustic emission whose frequency signature varies as a function of the gas flow velocity. The control system may acquires time-domain acoustic data, and process that data to obtain a frequency-domain representation from which gas velocity or gas flow rate can be determined.

Abstract: A field device includes: a casing portion that has an amplifier shield chamber into which an analog signal transfer portion transferring an analog signal output from a detector is able to be inserted; a signal conversion portion that is disposed inside the amplifier shield chamber, the signal conversion portion being configured to convert the analog signal into a digital signal; and a first connector that is disposed inside the amplifier shield chamber, the first connector being configured to connect the analog signal transfer portion and the signal conversion portion to each other in an attachable/detachable manner.

Abstract: In accordance with example embodiments of the present disclosure, a method for determining parameters for, and application of, models that correct for the effects of fluid inhomogeneity and compressibility on the ability of Coriolis meters to accurately measure the mass flow and/or density of a process fluid on a continuous basis is disclosed. Example embodiments mitigate the effect of multiphase fluid conditions on a Coriolis meter.

Abstract: The invention relates to a Coriolis measuring sensor for detecting a mass flow rate or a density of a medium flowing through a measurement tube of the Coriolis measuring instrument. The measurement tube has an inlet and an outlet designed to convey the medium between the inlet and the outlet; an exciter; and two sensors; the measuring sensor comprising a supporting element having a chamber designed to house the measurement tube at least in portions. The magnet device comprises a magnetically conductive holder for magnets and a first pair of magnets arranged on the holder on a first face of the coil device, with the magnets designed to cause a magnetic field perpendicularly to a cross-sectional plane of the coil, and the magnetic field of a first magnet of the pair is oriented so as to be opposite to the magnetic field of a second magnet of the pair.

Abstract: Provided are techniques for operating a hydrocarbon well system that include installing a wellhead seal assembly at a wellhead of a hydrocarbon well system, conducting pressure testing of a wellhead seal cavity defined by the seal assembly to verify its integrity, disposing a control fluid into the wellhead seal cavity, conducting baseline ultrasonic imaging of the wellhead seal cavity to generate a baseline ultrasonic image that depicts a signature of the control fluid disposed in the wellhead seal cavity at a first point in time, conducting updated ultrasonic imaging of the wellhead seal cavity to generate an updated ultrasonic image that depicts a signature of substances disposed in the wellhead seal cavity at a second point in time, comparing the updated ultrasonic image to the baseline ultrasonic image to determine whether the integrity of the wellhead seal cavity has been compromised.

Abstract: A valve with permanent magnet(s) and electro-magnet coils magnetically coupled to the permanent magnet(s). The valve is positioned below an inlet for receiving media. The amount of media flow may be regulated by controlling the current to the coils for partial or full flow. With no power applied to the electro-magnet coils, the media flow is inhibited. Application of a current to the electro-magnet coils will block the flux in the pole pieces rendering the working gap free of magnetic flux and thus allowing media to freely flow. As it is used, the media may become magnetized, altering the flow properties and causing magnetized media to bridge across the working gap. A magnetic sensor detects the amount of flux in the working gap to provide a signal to a control system. The signal allows closed loop control of the coils as media becomes magnetized, allowing consistent flow properties during use.

Abstract: A flow transmitter method and system involves obtaining, via a flow sensor, sensor measurements of flow characteristics of a moving medium; outputting, via a processor, a drive signal for driving a pulse output circuit to generate a pulse signal according to the sensor measurements from the sensor; and generating, via a switching circuit of a pulse output circuit, a pulse signal according to the drive signal. The method and system further involve monitoring, via a diagnostic circuit connected to the switching circuit, current corresponding to the pulse signal; and determining, via the processor, whether the output circuit is operating in a normal or abnormal state based on the drive signal from the processor and a feedback signal corresponding to the monitored current from the diagnostic circuit.

Abstract: A method of detecting leakage within a chassis includes mounting the chassis on a plate disposed in a sealed chamber and fluidly connecting, by a pipe, an interior space of the sealed chamber to a water tank such that a bottom end of the pipe is under a surface of water in the water tank. The method further includes determining, such as observing, whether bubbles are formed at the bottom end of the pipe due to pressurized air flowing into the pipe. The method also includes determining presence of a leak in the chassis due to pressurized air flowing between the chassis and the sealed chamber, before flowing into the pipe.

Abstract: The present disclosure provides a multi-layer open channel portable flow measuring device based on a water impulse principle and a flow measuring method; an instantaneous water head height of a water-carrying section, namely, a water level H is measured through a pressure sensor at a bottom of a U-shaped hollow tube; at the same time, layered multi-point velocity measuring components in equidistant layout include a series of position “current meters” composed of tension sensors, hollow punching lightweight steel balls and lightweight elastic steel ropes to measure velocities V1-n of different points, n depends on the layer decided to be arranged according to a channel depth, an instantaneous flow value of the whole water-carrying section is further acquired through multi-layer flow accumulation, and with a simple structure, intelligent control, easy operation and convenient carrying, the present disclosure may further improve the flow measuring precision.

Abstract: In a developing cartridge, a first supporting member is attached to a housing and has a first developing supporting portion and a driving-force-receiving-member supporting portion, the first developing supporting portion being configured to rotatably support a first part of a rotational shaft, the driving-force-receiving-member supporting portion being configured to rotatably support a driving-force-receiving member. The second supporting member is attached to the housing and has a second developing supporting portion and a detection-rotational-body supporting portion, the second developing supporting portion being configured to rotatably support a second part of the rotational shaft, the detection-rotational-body supporting portion being configured to rotatably support a detection rotational body.

Abstract: A measuring device for measuring flow velocity includes a measuring tube, a measuring transducer for registering a measured variable and outputting a first measured value representing the measured variable, a temperature sensor, and an electronic measuring/operating circuit. The temperature sensor has a sensor element and electrically conductive leads. Each lead is connected with the sensor element and has a first section following on the connection location. The sensor element has a maximum periphery. The first section has a separation of less than 5% of a measuring tube radius from a measuring tube wall, wherein a length of each lead in the first section is at least 25% of the maximum periphery. The leads are guided in their first section at least in certain regions along the maximum periphery, and in their first section are in certain regions in thermal contact with the measuring tube.

Abstract: A process cartridge including: a photosensitive member cartridge including a photosensitive member; and a developing cartridge including a developer carrier. The developing cartridge further includes: an inputting portion; a first cover; and a second cover. The first cover has a first engagement portion configured to move the developer carrier away from the photosensitive member. The first engagement portion is positioned between an axis of the developer carrier extending in an axial direction and an axis of the inputting portion extending in the axial direction, when projected in the axial direction. The second cover has a second engagement portion configured to move the developer carrier away from the photosensitive member. The second engagement portion is positioned between the axis of the developer carrier and the axis of the inputting portion, when projected in the axial direction.

Abstract: An image forming apparatus includes an apparatus main body, a drawer, a drum cartridge, an exposure device, a fixing device, and a toner cartridge. The drum cartridge includes a photosensitive drum, a cleaning member, a developing device, a waste toner conveying pipe, and a frame. The toner cartridge includes a toner container and a waste toner container. The cleaning member is located between the photosensitive drum and the fixing device in a vertical direction in the state where the drum cartridge is mounted to the drawer and the drawer is located at an inner position. The drum cartridge is capable of being mounted to the drawer. The toner cartridge is attachable to and detachable from the drum cartridge.

Abstract: A developing cartridge includes: a casing configured to accommodate therein toner; a developing roller; a supply roller configured to supply the toner to the developing roller; a layer thickness regulation blade in contact with a circumferential surface of the developing roller; a developing electrode electrically connected to the developing roller; and a supply electrode electrically connected to the supply roller and the layer thickness regulation blade. The supply electrode includes: an electrode member electrically connected to a rotation shaft of the supply roller and movable in a direction perpendicular to the rotation shaft; and a connection member in contact with and electrically connecting the electrode member and the layer thickness regulation blade. The electrode member is movable relative to the connection member in the direction perpendicular to the rotation shaft in a state where the electrode member is in contact with the connection member.

Abstract: A fluid flow rate measurement device includes: a manifold element including a first fluid conduit extending from a surface thereof and terminating in a first port opening at a first lateral surface thereof and a second port opening at a second lateral surface thereof, and a second fluid conduit extending from a surface thereof and terminating in a third port opening at the first lateral surface and a fourth port opening at the second lateral surface; a fluid restriction element fixed to the first lateral surface and arranged to provide a sealed fluid pathway between the first port and the third port; and—a pressure sensor assembly fixed to the second lateral surface and including a first pressure sensor in fluidic communication with the second port, and a second pressure sensor in fluidic communication with the fourth port.