Robert Boschgmbh

Juergen Wendt

Lothar Diehl

Dirk Hofmann

Uwe Kassner

Klaus Winkler

Jens Schneider

Alex Grossmann

Jochen Laubender

Klaus Lerchenmueller

Bernhard Opitz

Juergen Seidel

Dirk Schmidt

Werner Soergel

Thor Windbergs

Dimitrios Stavrianos

Dirk Eichel

Andre Yashan

Stephan Schulteis

Sven Fehler

A determining device for determining at least one component of a liquid, e.g., a fuel mixture, for use in motor vehicles, includes at least one sensor which has at least one connecting device for coupling microwave signals into the liquid and/or out of the liquid. The determining device is implemented as a hand-held measuring instrument.

Device for determining a composition of a liquid

A method is described for determining information about a rotational speed of a compressor, in particular a turbocharger, by providing a measuring signal, in particular a microwave measuring signal, which is directed at a compressor impeller of the compressor, so that the measuring signal is reflected on revolving blades of the compressor impeller, detecting the measuring signal reflected by one or more blades, and determining the information about the rotational speed as a function of the reflected measuring signal.

Method and device for determining one or more rotational speeds of a turbocharging device, in particular for an internal combustion engine

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Stuttgart, Germany

Juergen Wendt