3m Innovative Properties Company

Benjamin Muenstermann

Ronald David Jesme

Jens Weichold

Mark Gravermann

Christian Weinmann

Michael H Stalder

Hermanus Franciscus Maria Van Meijl

Gunther A J Stollwerck

Markus G W Lierse

Volker Korsten

Gunther Dr Stollwerck

Radar radiation redirecting tapes () include a first plurality of individual radar-reflecting directional antennae (). Each directional antenna comprises at least three elongate, unevenly spaced antenna conductors (), arranged with their long extensions parallel to each other in the plane of the tape, such that the directional antenna is operable to reflect incoming radar radiation predominantly in a direction () which is orthogonal to the long extension of the antenna conductors and parallel to the plane of the tape.

Radar radiation redirecting tape

The invention relates to a voltage sensing device () for a high and/or medium voltage power carrying conductor (), the voltage sensing device comprising: a radially outer electrode () operable as a first sensing electrode of a sensing capacitor for sensing the voltage of the power carrying conductor; a radially inner electrode () operable as a second sensing electrode of the sensing capacitor; a dielectric material () arranged between the inner and the outer electrode (), wherein the coefficient of thermal expansion of the material of at least one electrode () is selected such that it compensates the temperature dependent parameters of the dielectric material () and/or the other electrode (), that influences the capacity of the voltage sensing capacitor.

Voltage sensing device

Growing community of inventors

Duisburg, Germany

Benjamin Muenstermann