Abstract: A measurement system includes: a tube; a bluff body, situated in the lumen of the tube, for generating vortices in a flowing fluid such that a Karman vortex street is formed downstream of the bluff body; a vortex sensor, having a mechanical resonant frequency, for providing a vortex sensor signal which changes over time and contains a first component representing the vortex shedding frequency and which contains a second component representing the mechanical resonant frequency of the vortex sensor; and transducer electronics for evaluating the at least one vortex sensor signal and configured to do the following: to determine vortex frequency measurement values representing the shedding frequency using the first component and, if the first component is not present, not to provide flow parameter measurement values and to generate a message indicating the current flow speed is not lower than the current acoustic velocity of the flowing fluid.

Abstract: An apparatus and a method for measuring a creep crack growth property using a small specimen with a micro groove are provided. The apparatus for measuring a creep crack growth property includes a lower die on which an edge of the specimen is mounted and which includes a lower die hole formed in the center thereof, an upper die coupled to an upper portion of the lower die so as to fix the specimen, and a punching unit inserted into an upper die hole formed in the center of the upper die so as to press an upper surface of the specimen, wherein a semielliptical micro groove is formed in a lower surface of the specimen to measure a creep crack growth property.

Abstract: Safety systems and material testing systems including safety systems are disclosed. An example material testing system includes: an actuator configured to control an operator-accessible component of the material testing system; an actuator disabling circuit configured to disable the actuator; and one or more processors configured to: control the actuator based on a material testing process; monitor a plurality of inputs associated with operation of the material testing system; determine, based on the plurality of inputs and the material testing process, a state of the material testing system from a plurality of predetermined states, the predetermined states comprising one or more unrestricted states and one or more restricted states; and control the actuator disabling circuit based on the determined state.

Abstract: A test apparatus and method for use, in situ, to identify leaks in individual tubes in an air-cooled heat exchanger includes a pressurizing component and a pressure retaining component that are secured in the opposite ends of an individual tube by engagement of a lock member in the threaded opening in the respective adjacent headers from which the access port covers have been removed. A pressurized test liquid, e.g., water, is admitted via the test apparatus pressurizing component to fill the tube by initially venting and then closing a drain valve on the pressure retaining component and controllably increasing the hydrostatic pressure on the tube to a predetermined value and monitoring a gauge in the pressurizing component for any loss of the final test pressure, thereby confirming a leak, after which the tube is drained and sealed to remove it from service.

Abstract: A direction selective unidirectional clutch assembly for a fluid meter counter module assembly is characterized by a drive selector mechanism to couple a direction selection drive shaft to a unidirectional clutch to select one of a first flow direction and a second flow direction of flow of the fluid to drive a counter module. The direction selection draft is coupled to a rotating member (e.g. impeller) driven by flow of the fluid and rotates in a direction that is responsive to the direction of rotation of the rotating member. A pair of gears are mounted to slide along the direction selection draft between a first position and a second position. A direction changing gear is mounted at the second position. Further provided is a flow meter with a direction selective unidirectional clutch assembly.

Abstract: An overfill-prevention valve system includes a testing mechanism, operable by a user from the inlet end of the drop tube, which can be used to verify proper valve function without actually filling the storage tank. The testing mechanism allows the user to actuate the valve manually using a test probe, such as by elevating a float to simulate a full storage tank. The testing mechanism may be located upstream of the valve to facilitate the testing operation without interfering with the valve body. The mechanism may further provide non-contact functionality, such as with magnetic actuators on either side of the drop tube wall, to eliminate a potential test mechanism leak points. The test probe used to actuate the test mechanism may be shaped to define a desired rotational position at the test location within the drop tube, ensuring proper rotational alignment of the magnetic actuators.

Abstract: An image forming apparatus, having a first photosensitive drum, a first developing roller, a first shifting member movable between a contacting position and a separating position, a motor, a first joint, a first clutch operable in one of a transmittable condition and a discontinuing condition, a first shifting cam rotatable between a first position, in which the first shifting cam locates the first shifting member at the contacting position, and a second position, in which the first shifting cam locates the first shifting member at the separating position, and a first switching cam rotatable between a third position, in which the first switching cam places the first clutch in the transmittable condition, and a fourth position, in which the first switching cam places the first clutch in the discontinuing condition, alongside the first shifting cam rotating between the first position and the second position, is provided.

Abstract: Embodiments disclosed herein generally relate to a heater, comprising an insulator substrate, a first member, a plurality of electrodes, and a second member. The first member is configured to generate heat on an upper surface of the insulator substrate across a first direction. The first member has a first end opposite a second end. The plurality of electrodes are formed on both the first end and the second end of the first member, respectively, and each electrode is disposed in a direction perpendicular to the first direction. The second member is configured to store heat. The second member comprises a latent heat material having latent heat in a target temperature zone. Furthermore, the latent heat material is fixed to a side surface or a bottom surface of the insulator substrate.

Abstract: A nozzle insertion member is in a powder container that includes a nozzle insertion opening into which a conveying nozzle is inserted. The nozzle insertion member includes an opening/closing structure to move to an opening position to open the nozzle insertion opening by being pressed by the inserted conveying nozzle, and to a closing position to close the nozzle insertion opening when the conveying nozzle is separated from the nozzle insertion member, and a seal arranged at the nozzle insertion opening and including a through hole into which the conveying nozzle is insertable. The opening/closing structure includes a front cylindrical portion to contact with an inner surface of the through hole, and a slide area formed on another side relative to the front cylindrical portion. W1<W4 is satisfied, where W1 is an inner diameter of the through hole, and W4 is an outer diameter of the slide area.

Abstract: A wind noise analyzer includes: an unsteady computational fluid dynamics calculation unit configured to execute an unsteady computational fluid dynamics simulation involving moving a structure model modeled on a structure, and calculate, for each of spatial nodes, an average flow velocity and an average vorticity over a predetermined time in a flow field inside the predetermined region, and then calculate, for each of the spatial nodes, a value based on an amplitude of a turbulent flow velocity inside the predetermined region, in an angular frequency band of interest; and a pressure source density calculation unit configured to calculate, based on the average flow velocity, the average vorticity, and the value based on the amplitude of the turbulent flow velocity, a pressure source density.

Abstract: A vortex flowmeter with at least one measuring tube, at least one bluff body and at least one measuring sensor arranged behind the bluff body, at least one measuring transducer and at least one evaluation unit, wherein the measuring sensor is arranged such that, during operation, it is deflected by the vortices of the medium forming behind the bluff body, wherein the measuring transducer is designed and arranged such that, during operation, it converts the deflection of the measuring sensor into a corresponding change in a measured variable and transmits it as a measured signal to the evaluation unit. The functionality of the measuring transducer can be checked is achieved by an actuator being arranged and controllable by a control unit such that the actuator can deflect and/or deform the measuring transducer and/or the measuring sensor.

Abstract: A flow detection device comprises a fluidic input port connected to a fluidic output port via a channel and a float located within the channel. A specific weight of the float exceeds a specific weight of a fluid injected in the flow detection device. Respective locations of the fluidic input port, of the channel and of the fluidic output port on the flow detection device cause the float to rise within the channel when a sufficient flow of the fluid is injected in the flow detection device. A sensor is provided to detect a position of the float within the channel. The flow detection device may be integrated in a cooling circuit having a cooling device for an electronic device to detect an eventual lack of a flow of a cooling fluid in the cooling circuit. A status of the flow of the cooling fluid is reported to a processor.

Abstract: A system (800) for minimizing a crest in a multi-tone drive signal in a vibratory meter (5) is provided. The system (800) includes a drive signal generator (810) configured to generate the multi-tone drive signal for the vibratory meter (5) and a drive signal detector (820). The drive signal detector (820) is configured to receive the multi-tone drive signal, determine a first maximum amplitude of the multi-tone drive signal having a component at a first phase, determine a second maximum amplitude of the multi-tone drive signal having the component at a second phase, and compare the first maximum amplitude and the second maximum amplitude.

Abstract: A liquid electrophotographic (LEP) printing device that includes a photo-imaging plate (PIP) to receive a liquid printing fluid, the liquid printing fluid including a pigment incorporated into a resin, a charge conductor, and a carrier liquid, and a transfer roller to transfer the liquid printing fluid from the PIP to a fabric substrate while wet.

Abstract: Vibratory meters (5), and methods for their use measuring a fluid are provided. Each vibratory meter includes a multichannel flow tube (300) comprising two or more fluid channels (302), a pickoff (170), a driver (180), and meter electronics (20) configured to apply a drive signal to the driver at a drive frequency ?, and measure a deflection of the multichannel flow tube with the pickoff. In examples, at least one fluid channel has an effective diameter that is related to velocity of sound and drive velocity. In further examples, the driver may apply a drive signal to the driver having a drive frequency proportional to the velocity of sound and effective diameter.

Abstract: A manifold (400, 600, 700) with reduced vortex shedding, a vibrator) meter (5) including the same, and a method of manufacturing both are described. The manifold (400, 600, 700) comprises a first conduit section (202), a second conduit section (204), a splitter section (406, 606, 706) positioned between the first conduit section (202) and the second conduit section (204), the splitter section (406, 606, 706) including a first splitter face (408a, 608a, 708) facing the first conduit section (202), and a first protrusion (412a, 612a. 712), at least a portion of which is positioned on the first splitter face (408a, 608a, 708).

Abstract: A system for simultaneously measuring the indentation hardness properties, span properties, and resilience properties of a mattress includes a first indentation means and a second indentation means, and means for urging the first indentation means and the second indentation means into the mattress with a predetermined force, and also includes laser means for projecting a laser line configured to map, preferably by photographic triangulation, the amplitude, shape, and time-dependency of the resultant deflection of the mattress surface between the first indentation means and the second indentation means. A method for simultaneously measuring the indentation hardness properties, span properties, and resilience properties of a mattress is also provided.

Abstract: An image forming apparatus includes an image forming unit, a fixing unit including a first rotary member and a second rotary member, a reciprocation mechanism configured to reciprocally move the fixing unit in a width direction, a duplex conveyance unit configured to reverse a recording material of which a toner image is fixed on a first surface and reconvey the recording material to the image forming unit in a double-sided image formation in which toner images are formed and fixed on the first surface and second surfaces of the recording material, and a control unit configured to control the reciprocation mechanism not to move the fixing unit in the width direction while the fixing unit is nipping and conveying the recording material at a fixing nip portion for fixing the toner image on the first surface of the recording material in the double-sided image formation.

Abstract: A magnetic-inductive flowmeter for determining the flow of a medium, having a measuring tube for guiding the medium and having two electrodes for tapping a measuring voltage induced in the medium, wherein the measuring tube has an inflow section, a measuring section and an outflow section arranged one after the other in the flow direction of the medium, the inflow section having a cross section which decreases in the flow direction, the measuring section having a constant cross section and being symmetrical with respect to a measuring section symmetry plane which runs parallel to the longitudinal axis of the measuring tube, and the outflow section having a cross section which increases in the flow direction and is formed at least partially asymmetrically with respect to the measuring section symmetry plane in order to increase measuring accuracy.

Abstract: A vortex flow meter is within a flow conduit. The vortex flow meter includes a housing defining a flow passage substantially in-line with the flow conduit. An actuable buff body is within the flow passage. A sensor is downstream of the actuable buff body and is attached to the housing. The sensor is configured to detect vortex shedding. A controller is configured to send a drive signal to an oscillator to oscillate the buff body. The controller is configured to receive a vortex stream from the sensor. The vortex stream is indicative of vortexes shed by the buff body within a fluid. The controller is configured to determine a flow velocity responsive to the received vortex stream.