Abstract: A method for determining multi-phase flow properties of a fluid includes measuring a first time for a first ultrasonic signal to be emitted from a first transducer into the fluid, reflected off an inner surface of the pipeline, and received back at the first transducer. Measuring a second time for the first ultrasonic signal to be emitted from the first transducer into the fluid and received at a second transducer. Calculating, using the first time and the second time, at least one of: a liquid to gas ratio, a fluid density, a gas holdup, a liquid holdup, and a fluid velocity of the fluid flowing through the pipeline.

Abstract: Hardness tester provided with a rotating measuring head, a first rotating device and a second rotating device, wherein the rotating measuring head is secured to the rotating device and is capable of rotating with respect to it, and wherein the first rotating device and the second rotating device are secured to each other and inclined with respect to each other. The hardness tester is equipped with a slide provided with a stroke on which the rotating measuring head is mounted and with a first motor capable of activating the movement of the slide.

Abstract: Exemplary methods for detecting substrate slippage include sweeping a first sensor and a second sensor of an in-situ monitoring system across the substrate as the substrate undergoes polishing with a rotatable platen. A first sequence of signal values from the first sensor and a second sequence of signal values from the second sensor include a signal strength relative to the thickness of the layer. For each signal value of at least some of the first sequence of signal values and second sequence of signal values, the method may include determining a first and second position on the substrate respective. The method may also include activating a slippage alert if: the signal strength varies by 30% or more from the first sequence of signal values to the second sequence of signal values, a position on the substrate for the second signal value cannot be determined, or a combination thereof.

Abstract: An ultrasonic flowmeter includes first and second ultrasonic transducers and a control and evaluation unit connected thereto. The first and/or second ultrasonic transducer is/are an ultrasonic transmitter and/or an ultrasonic receiver. The first and second ultrasonic transducers are arranged on a measuring tube in such a way that a signal path is formed therebetween, and such that a measuring signal emitted by the ultrasonic transmitter runs via the signal path to the ultrasonic receiver. The first and/or second ultrasonic transducer has array of at least two active elements. At least one ultrasonic transducer with an array of at least two active elements is formed as a wedge transducer. At least two active elements of the array arranged on the first ultrasonic transducer, and/or at least two active elements of the array arranged on the second ultrasonic transducer, are separately controllable by the control and evaluation unit.

Abstract: An ultrasonic measuring cell for measuring the volume flow of a fluid flowing in a tube across various external measuring conditions is provided. In an example, the measuring cell includes a continuous central recess to receive the fluid-carrying tube; at least six ultrasonic transducers; at least two inlay regions and optionally at least two ultrasonic interrupter regions. At least a first and a second ultrasonic transducer are positioned on a first side of the central recess and at least a third and a fourth ultrasonic transducer are positioned on a second side of the central recess wherein the first side and the second side are opposite to each other; and the first and the second ultrasonic transducers are aligned in a way that the first and/or the second ultrasonic transducer can emit a measuring signal oblique to the flow direction of a fluid in the tube.

Abstract: There is provided a vibration test device capable of accurately performing self-diagnosis related to the state of the vibration test device, including a failure determination, a failure prediction, and a performance limit determination of the vibration test device.

Abstract: Systems and methods are provided for selecting a preferred type of acoustic insulation apparatus in connection with a particular site. An isolation acoustic measurement corresponding to a reference type of acoustic insulation apparatus and a plurality of difference measurements may be determined. An on-site acoustic measurement corresponding to the reference type of acoustic insulation apparatus may be received. A predicted secondary on-site acoustic measurement may be determined for each distinct secondary type of acoustic insulation apparatus. An on-site ambient noise measurement may be received. The type of acoustic insulation apparatus being associated with the on-site acoustic measurement having the closest value to the on-site ambient noise measurement may be selected as the preferred type of acoustic insulation apparatus in connection with the particular site.

Abstract: Behind an electronic circuit, a main backing is provided. The main backing has two outer surfaces (high thermal conductivity surfaces) perpendicular to a Y direction, and two outer surfaces (low thermal conductivity surfaces) perpendicular to an X direction. The two outer surfaces perpendicular to the Y direction are joined to a shell head, which is a heat absorbing member. A temperature sensor is provided on a specific one of the outer surfaces perpendicular to the Y direction. The shell head has a recess in which the temperature sensor is received.

Abstract: A sample conveying device and a sample conveyance method capable of determining a cause of an abnormality in a conveyance speed more quickly than in the related art. In a conveying device, a general conveyance speed of a conveying container is obtained from a position of the conveying container detected by a position detection unit to determine whether the general conveyance speed is abnormal, and upon determining that the general conveyance speed is abnormal, an inspection conveying container is conveyed, and the cause of the abnormality in the general conveyance speed is determined based on the conveyance speed of the inspection conveying container.

Abstract: Multidimensional liquid chromatography (MDLC) systems include valve configurations that enable a flow containing analytes in the eluent of a first dimension liquid chromatography system to be modulated such that the analytes can be captured in fluidic loops and subsequently provided to a second dimension liquid chromatography system. Optionally, a single detector is used for both first and second dimensions. In addition, the systems can enable dilution of the analytes and enable incompatible mobile phases and mobile phase flow rates to be used in the first and second dimensions.

Abstract: An apparatus for controlling fluid flow and in particular fluid flow through a microfluidic multi-port control valve assembly of a High Pressure Liquid Chromatography (HPLC) unit. The flow control apparatus has a localized data repository for storing local valve position data and cumulative wear indications of components of the apparatus. The stored information travels with the apparatus allowing for more reliable predictive failure of components of the apparatus and translation of local valve position data for compatibility with host valve information. The translated valve position data enables determination of whether valve motion is acceptable and complete.

Abstract: There is provided a simultaneous detection method and system for dissolved gas and partial discharge in insulating oil, and belongs to the field of electrical devices. The method includes the steps: freely diffusing the dissolved gas in the insulating oil to an Fabry-Perot (F-P) optical fiber interference cavity through an oil-gas separation membrane; coupling pump light and probe light into the F-P optical fiber interference cavity through a frequency division multiplexer; making, by an optoacoustic effect of the dissolved gas stimulated by the pump light and an ultrasonic wave generated by the partial discharge, the oil-gas separation membrane vibrate; detecting, by the probe light, vibration of the oil-gas separation membrane, which changes a cavity length, wherein when the probe light is reflected by the oil-gas separation membrane, an interference signal is generated due to the change of the cavity length.

Abstract: The method for tracing a sediment source, including: sampling at sampling points and multiple additional testing points around each sampling point; measuring sediment grain size distribution and corresponding mass percentages to plot sediment grain size distribution curves of each sampling point and its additional testing points; plotting a sediment fingerprint matrix of each sampling point; comparing patterns of the sediment fingerprint matrix of the first sampling point with patterns of the sediment fingerprint matrix of the second sampling point, and determining whether sediment at the first sampling point and that at the second sampling point have the same source. The sediment fingerprint matrix that illustrates the variation of sediment characteristics in different grain size intervals. In addition, by comparing the sediment characteristics in the corresponding grain size intervals, the tracing and classification of sediment from different locations can be achieved.

Abstract: A thin film thickness measuring apparatus includes: an ultrasonic retroreflector that is provided under a test object formed in the shape of a thin film and retroreflects an ultrasonic wave incident through the test object; an ultrasonic wave input portion that is provided on one side of the test object and inputting an ultrasonic wave to one side of the test object; and a measurement portion that is connected to the ultrasonic wave input portion and measures an arrival time of the ultrasonic wave reflected through the test object.

Abstract: A thin film thickness measuring apparatus includes: an ultrasonic retroreflector that is provided under a test object formed in the shape of a thin film and retroreflects an ultrasonic wave incident through the test object; an ultrasonic wave input portion that is provided on one side of the test object and inputting an ultrasonic wave to one side of the test object; and a measurement portion that is connected to the ultrasonic wave input portion and measures an arrival time of the ultrasonic wave reflected through the test object.

Abstract: A container transfer method for transferring a container from a container holder capable of holding a plurality of containers, by using a holding section capable of performing an opening/closing operation, vertical movement, and horizontal movement. The method includes: moving the holding section downward to a position lower than a head portion of the container, at a position where the container is not held in a plan view; horizontally moving the holding section in an opened state, toward a target container on the container holder; after the horizontal movement of the holding section to the target container, closing the holding section with respect to the target container; and moving upward the holding section in a closed state.

Abstract: A method is presented for remotely identifying a utility pole position and estimating a state of an overhead optical fiber cable. The method includes identifying a boundary region of a vibration distribution as a utility pole position, from a vibration distribution pattern obtained by measuring strain amounts with respect to distances of an optical fiber by an optical fiber vibration distribution measuring method at each time and sequentially stacking the strain amounts.

Abstract: A device for measuring a parameter indicative of a rotational speed of a component includes a wired or wireless input configured to receive a vibration signal from a vibration sensor, a boost filter configured to filter the vibration signal, based on a predetermined frequency range, into a sinusoidal signal and, a comparator configured to generate a pulse waveform signal from the sinusoidal signal in order to read the value of the parameter. Also a motor or pump controller including the device.

Abstract: An abnormality detecting device includes at least two first cover parts arranged next to each other in a circumferential direction; electrode parts respectively supported by the first cover parts; magnet parts provided inside of the first cover parts in the radial direction, where each magnet part is in contact with a corresponding electrode part; and a second cover part provided between adjacent first cover parts in the circumferential direction.

Abstract: A sensor housing includes: a sensor body with at least one primary retainer arranged in the sensor body; a sensor cover with at least one secondary retainer, the sensor cover configured for arrangement on the sensor body such that the primary retainer and the secondary retainer are enclosed in the sensor body; and a locking unit including at least one locking element configured for releasably connecting the primary retainer and the secondary retainer, wherein the locking element includes a magnetizable material or a magnetic material and is mounted movably between a locking position, in which the locking element locks the primary retainer with the secondary retainer, and an opposing release position, such that the locking element can be moved between the locking position and the release position by an applied magnetic field.