3M Innovative Properties Company

Harald Westkamp

Jens Weichold

Mark Gravermann

Bernd Schubert

Steven Feldman

Alexander Barr

Joseph N Castiglione

Michael H Stalder

David M Rudek

Christine B Bund

Johannes Fink

Knut Schumacher

Guenter M Zilligen

Gunther A J Stollwerck

Andreas Backes

Michael Bahners

Robert Bialluch

Guenter Ploehn

Sebastian Eggert-Richter

Thomas Keller

Waleri Wischnepolski

Gerardus Aca Nuiten

Mirco Gunjaca

Martin Stottmeister

Peter Orda

Günter Zilligen

Jörg Hahn

Benjamin Münstermann

Willy A Ahlmann

Guenther A J Stollwerck

Sensored mixer, comprising a mixing device for mixing two or more components to produce a mixed liquid at a mixer output, and a property sensor for determining a property of a liquid, the property sensor comprising a) a channel comprising a sensing zone through which the liquid flows; b) two electrodes for generating an electric field of one or more sensing frequencies in the sensing zone; c) a data storage device comprising a pre-stored set of calibration data representing calibration impedance responses measured previously at the one or more sensing frequencies and at different property values of the property of an identical liquid; and d) a device to repeatedly i) generate between the electrodes an electric field of in the sensing zone; ii) sense between the electrodes, a response impedance; iii) derive from the response impedance a property value of the property of the liquid, using the pre-stored set of calibration data representing calibration impedance responses, wherein the property sensor is in fluid communication with the mixer output such that the mixed liquid can flow from the mixer output through the sensing zone. A method for sensing a property of the liquid and a data set of calibration data representing calibration impedance responses usable with the sensor and the method are also disclosed.

Method, data set and sensored mixer to sense a property of a liquid

Voltage sensor () comprising a voltage divider () for sensing an AC voltage of a HV/MV power conductor (). For adjusting the common overall impedance of the low-voltage portion of the voltage divider towards a desired impedance, the low-voltage portion () comprises one or more low-voltage impedance elements (), a plurality of adjustment impedance elements () and a plurality of switches. In its connect state, each switch electrically connects an adjustment impedance element in parallel to at least one of the one or more low-voltage impedance elements (). The overall impedance of the high-voltage portion () and the overall impedance of the low-voltage portion () of the voltage divider () are adapted such that, by bringing one or more of the switches () into their connect state, the voltage divider () has, for an AC voltage of between 5 and 25 kV phase-to-ground and a frequency of between 40 and 70 Hertz, a dividing ratio of 3077, of 6154, of 6769 or of 10 000.

Adjustable voltage sensor

Voltage indication device (), attachable to a medium-voltage separable plug having a rear insert comprising a coupling electrode. The voltage indication device comprises a body () and a voltage detector () having a ground contact (), a voltage contact () for electrical connection to the coupling electrode; and an indicator for visually indicating presence of the medium voltage in the separable plug. The body comprises an elastically expandable support portion () for resiliently supporting the voltage detector ().

Voltage indication device

The invention relates to a sensor () for measuring a voltage in a HV/MV power network in a separable connector (), the sensor comprising: &#x2014;an adapter element () comprising a high voltage connection adapted to be mechanically and electrically coupled to a high voltage conductor () of the separable connector () and to receive HV/MV voltage from the separable connector, &#x2014;a sensor body () adapted to be mechanically and electrically coupled to the adapter element () and comprising a divider assembly () with a plurality of discrete impedance elements, which are electrically connected in series such as to be operable as a voltage divider for sensing a voltage and a low voltage connection () configured to provide a low voltage signal corresponding to a high voltage signal present in the HV/MV power network, wherein the adapter element () and the sensor body () are separate elements that are adapted to be installed to the separable connector (), wherein the adapter element is configured to be installed between the separable connector and the sensor body.

Sensor with discrete impedance elements for high voltage connectors

An electrical connector system includes a carrier assembly and a header. The carrier assembly includes a plurality of shielded connectors and a coaxial cable terminated to each of the shielded connectors. The header includes opposed grounding plates each having ground tabs configured for attachment to a circuit board and a plurality of pins disposed between the opposed plates in a stripline configuration. The coaxial cables of the carrier assembly electrically communicate with the circuit board through a stripline configuration of pins in the header.

System and method of surface mount electrical connection

Growing community of inventors

Hattingen, Germany

Harald Westkamp