Sciosense B.v.

Acam-Messelectronic Gmbh

Ams Ag

Friedrich Bahnmüller

Robert Kappel

Kerry Glover

Christian Mautner

Augustin Braun

Oliver Hertner

Frank Lemke

Georg Jedelhauser

Ulf-Thore Glindemann

Friedrich Längauer

In an embodiment an electric circuitry includes at least one first ring oscillator and at least one second ring oscillator being arranged on a substrate in different orientations, a time-to-digital converter having a converter ring oscillator and a processing circuit, wherein a first time is determined by a period duration of at least one first ring oscillator, this period duration depending on the propagation delay time of first delay elements, wherein a second time is determined by a period duration of at least one second ring oscillator, this period duration depending on the propagation delay time of second delay elements, and wherein the processing circuit is configured to determine a magnitude of the strain applied on the substrate based on a first state of the converter ring oscillator at the first time and a second state of the converter ring oscillator the second time.

Electric circuitry with differently oriented ring oscillators for strain measurement

A method for the temperature compensation of a resistance measuring bridge, such as in particular a Wheatstone bridge, is characterized in that a capacitor positioned between the input circuit and a resistance switching circuit of the Wheatstone bridge is successively discharge by means of at least one Wheatstone bridge resistor. In a device for the temperature compensation of a measuring bridge, particularly a Wheatstone bridge, having a measuring bridge and a compensating resistor in the input circuit, one or two switches are located in the resistance switching circuit branch of the measuring bridge as a contact point with the latter and a capacitor is located between the input circuit and the resistance switching circuit branch.

Method and device for the temperature compensation of a measuring bridge

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Karlsruhe, Germany

Friedrich Bahnmüller