Tools, methods, and systems for evaluating a demulsifier performance from an emulsion mixture are described. The systems include a measuring instrument including a body with an open end, a cover attachable to the body, a sample holder sized to hold the emulsion mixture and to be received inside the body, the body and the cover define a sealable chamber; a sensor system positioned inside the sealable chamber an environmental control system positioned to enclose the sealable chamber; a data acquisition and processing system is in electronic communication with the sealable chamber, the sensor system, and the environmental control system. The sensor system includes a handle attached to and extruding from the cover of the measuring instrument; and a sensor loaded onto the handle, sized to be submerged inside the emulsion mixture of the sample holder, and operable to measure performance of the demulsifier.

A vibronic sensor for determining and/or monitoring at least one process variable of a medium in a container. The sensor at least comprising: a unit which can oscillate mechanically; a driving/receiving unit; and an electronic unit. The driving/receiving unit is designed to excite, by means of an electrical excitation signal, mechanical oscillations in the unit which can oscillate mechanically and is designed to receive the mechanical oscillations of the unit which can oscillate mechanically, and to convert them into an electrical receiving signal. The electronic unit is designed to generate the excitation signal on the basis of the receiving signal and to determine the at least one process variable from the receiving signal; The electronic unit comprises at least one adaptive filter; and the electronic unit is designed to set the filter characteristic of the adaptive filter in such a way that there is a target phase shift between the excitation signal and the receiving signal.

A measuring transducer for registering and/or monitoring at least one process variable of a flowable medium guided in a pipeline, which at least includes: a housing module, which is mechanically coupled with the pipeline via an inlet end and an outlet end, and a sensor module having at least one measuring tube held oscillatably at least partially in the housing module and caused, at least at times, to oscillate. The at least one component of the housing module and/or of the sensor module is manufactured by means of a generative method and method for manufacturing at least one component of a measuring transducer, which method includes manufacturing the at least one component by means of a primary forming process, especially by means of a layered applying and/or melting-on of a powder, especially a metal powder, based on a digital data set, which gives at least the shape and/or the material and/or the structure of the at least one component.

A measuring arrangement (1) for measuring the density of flowable media comprises: a fluid path (16) for conveying a medium; a pump (14), which is arranged in the fluid path (16), for driving a defined volume flow of the medium in the fluid path (16); a pressure difference measuring arrangement (30a, 30b) for registering a pressure drop due to the volume flow of the medium between a first pressure tap (32a) and a second pressure tap (32b) in the fluid path (16); a densimeter (20) comprising at least one oscillator, which has at least one oscillatable measuring tube (22) for conveying the medium, at least one exciter mechanism for exciting oscillations of the measuring tube, and at least one sensor arrangement for registering at least one oscillatory characteristic of the oscillator, wherein the measuring tube or the measuring tubes of the at least one oscillator are/is arranged in the fluid path; an evaluation apparatus (40), which is adapted to ascertain the density of the medium based on the volume flow, the volume flow dependent pressure drop and the at least one oscillatory characteristic of the oscillator.

A magnetic levitation system is described, including a first cylinder-shaped magnet; a second cylinder-shaped magnet coaxially aligned with the first cylinder-shaped magnet; and a first cavity coaxially aligned with the first cylinder-shaped magnet; wherein the surfaces of the like-poles of the first and second cylinder-shaped magnets are parallel to each other and face each other to result in a linear magnetic field between the first and the second magnets. Methods of using a magnetic levitation system for analyzing a diamagnetic or paramagnetic sample are also described.

A magnetic levitation system is described, including a first cylinder-shaped magnet; a second cylinder-shaped magnet coaxially aligned with the first cylinder-shaped magnet; and a first cavity coaxially aligned with the first cylinder-shaped magnet; wherein the surfaces of the like-poles of the first and second cylinder-shaped magnets are parallel to each other and face each other to result in a linear magnetic field between the first and the second magnets. Methods of using a magnetic levitation system for analyzing a diamagnetic or paramagnetic sample are also described.

A method is disclosed comprising providing a biological sample on a swab, directing a spray of charged droplets onto a surface of the swab in order to generate a plurality of analyte ions, and analysing the analyte ions.

A method is disclosed comprising providing a biological sample on a swab, directing a spray of charged droplets onto a surface of the swab in order to generate a plurality of analyte ions, and analysing the analyte ions.

A method (900, 1000) of determining a vibration response parameter of a vibratory element (104) is provided. The method (900, 1000) includes vibrating the vibratory element (104) at a first frequency with a first drive signal, receiving a first vibration signal from the vibratory element (104) vibrated at the first frequency, measuring a first phase difference, the first phase difference being a phase difference between the first drive signal and the first vibration signal. The method (900, 1000) also includes vibrating the vibratory element (104) at a second frequency with a second drive signal, receiving a second vibration signal from the vibratory element (104) vibrated at the second frequency, measuring a second phase difference, the second phase difference being a phase difference between the second drive signal and the second vibration signal. The method (900, 1000) further includes using the first phase difference and the second phase difference to determine at least one of a phase difference, and a frequency of the vibratory element (104).

A flow sensor for a multi-phase medium flowmeter has a sensor carrier, and the sensor carrier has at least one first sensor array. The at least one first sensor array has a first permittivity sensor for determining a first permittivity of a multi-phase medium, a second permittivity sensor for determining a second permittivity of the medium, a density sensor for determining a density of the medium, and a first sensor axis. The first permittivity sensor, the second permittivity sensor, and the density sensor are arranged on the sensor carrier along the first sensor axis, and the first permittivity sensor and the second permittivity sensor are spaced apart with a permittivity sensor distance.