A method is provided for non-invasively determining properties of a multiphase flow which flows through an electrically conductive object. Using a single set-up having a plurality of EMAT transducers, at least one property of the multiphase flow is determined by means of at least one of a plurality of measurement methods. A device is also provided for non-invasively determining properties of a multiphase flow which flows through an electrically conductive object. At least four EMAT transducers are positionable upstream along a first object cross-section at or near the object wall and at least four EMAT transducers are positionable downstream along a second object cross-section at or near the object wall.

A device is provided that is intended to simultaneously measure and identify at least two characteristics of multiphase fluid flows through the device and/or equipment attached to the device. The device has a lower measurement medium invasive compartment comprised of at least two ultrasonic and/or acoustic transducers, a piezo-resistive sensing element, and a resistance temperature detector (RTD) to make simultaneous independent measurement. A pathway connects to the device's upper electronic compartment comprised of an accelerometer array, multiple stacked circuit boards providing power, sensing interface, processing, calculation, and network communication functionalities. The device is capable of measuring, processing, and calculating simultaneous independent pressure, temperature, flow rate, and vibration measurement. The device reports data to an external system via either wired and/or wireless communication channel.

A multi-path acoustic signal apparatus, system, and apparatus for use in material detection are provided. The apparatus has a plurality of acoustic sensors positioned along a first portion of a fluid container. At least one acoustic signal is transmitted into the fluid container by each of the plurality of acoustic sensors. At least one additional acoustic sensor is positioned along a second portion of the fluid container, wherein the second portion is substantially opposite the first portion. The at least one additional acoustic sensor receives at least a portion of the acoustic signals from the plurality of acoustic sensors. A reflected acoustic signal is generated from an impedance barrier between the fluid container and a fluid therein. A characteristic of a material of the fluid container and/or the fluid therein are determined.

An ultrasonic transmitter (95) and detector (e.g., integrated as an ultrasound transducer) utilized in a feedback control system automatically monitors and/or detects surface profile (e.g., shape) of the liquid-air interface and adjusts the flow rate of sampling liquid to ensure that experimental conditions remain consistent at the time of sample introduction during serial samplings. The feedback control can provide for automated adjustment of the surface profile of the liquid-air interface in accordance with changes in desired set point according to an experimental workflow (e.g., automated adjustment between an interface corresponding to a vortex sampling set point and an overflow cleaning set point). Improvements in desorption efficiency and quality of mass spectrometry data by degassing of the liquid solvent utilized within the sampling interfaces, and/or utilization in a feedback control system for generating data indicative of a surface profile of the liquid-air interface within the interface's sampling port may be realized.

A method, apparatus, and system according to which first and second transducers are connected to first and second waveguides, respectively, the first and second waveguides are connected to a pipe, and ultrasonic wave signals are exchanged between the first and second transducers, said ultrasonic wave signals passing through the first and second waveguides, the pipe, and a fluid in the pipe. A temperature of the fluid flowing in the pipe may exceed about 600° C. The first and second waveguides insulate the first and second transducers from the pipe and propagate the ultrasonic wave signals between the pipe and the first and second transducers, respectively, so that the ability of the first and second transducers to exchange the ultrasonic wave signals is not adversely affected by the temperature of the fluid in the pipe. The first and second waveguides may be made of a calcium silicate technical ceramic.

A physical quantity measurement device is provided which is capable of measuring a component in a fluid to be measured even when the fluid contains droplets such as fine water droplets. The physical quantity measurement device includes, at an inlet opening (5) of a sub-channel (7), an inflow direction regulator (13) which includes guide pieces (12) each of which is inclined at predetermined angle θ with respect to the flow direction in a main channel (1). The angle θ of inflow direction regulator (13) is set to a value that is greater than 90 degrees in relation to the flow direction of the main channel (1).

The present invention relates to a vibronic sensor for determining a process variable of a medium in a containment, comprising a mechanically oscillatable unit, a driving/receiving unit and an electronics unit having an adaptive filter. The present invention relates also to a method for operating the sensor. The electronics unit is embodied alternately to execute a first operating mode and a second operating mode. The driving/receiving unit is embodied during the first operating mode to excite the oscillatable unit using an electrical excitation signal. During the second operating mode, the exciting of the oscillatable unit is interrupted and the oscillations of the oscillatable unit are received and transduced into an electrical, received signal. At least one filter characteristic of the adaptive filter is set such that a predeterminable phase shift is present between the excitation signal and the received signal, and the process variable is determined from the received signal.

Provided are systems and methods for line volume calibration, and measurement of fluid samples delivered to an interrogation point. In various embodiments, a known fluid volume comprising a sample line fluid and a secondary fluid is delivered to a fluid boundary sensor. The fluid boundary sensor assists in determining the position of the boundaries between the various fluids, and the positions of these boundaries are used to determine the sample line fluid volume.

A piezoelectric cell support for an ultrasonic transducer, the support including a front face having formed thereon: a first shoulder that defines a bearing surface and a bottom of a central cavity surrounded by the bearing surface, the bearing surface being suitable for having a piezoelectric cell placed thereon; retention device(s) for holding the piezoelectric cell on the bearing surface and for positioning it angularly; and a rear face having a sloping surface that gives a top portion of the support a first thickness that is less than a second thickness of a bottom portion of the support.

A system for monitoring processing of a fluid receives one or more characteristics of the fluid and uses those characteristics to determine specific gravity of the fluid and a level of processing activity of the fluid. The processor will cause a display device to output a dynamic representation of the specific gravity of the fluid as well as the determined level of processing activity. In some embodiments, the processing activity may include fermentation, as that of a beverage. If so, the dynamic representation of the determined level of processing activity may include a fermentation tank with a dynamically changing cavity. Displayed characteristics of the cavity will change as the determined level of the fermentation increases.