公开(公告)号：US12072254B2

公开(公告)日：2024-08-27

申请号：US17597687

申请日：2020-07-20

Applicant: Sciosense B.V.

Inventor： Friedrich Bahnmüller ,  Oliver Hertner ,  Frank Lemke ,  Georg Jedelhauser

IPC: G01L1/18 ,  G01B7/16

CPC classification number: G01L1/183 ,  G01B7/18

Abstract: 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.

公开(公告)号：US20220260437A1

公开(公告)日：2022-08-18

申请号：US17597687

申请日：2020-07-20

Applicant: Sciosense B.V.

Inventor： Friedrich Bahnmüller ,  Oliver Hertner ,  Frank Lemke ,  Georg Jedelhauser

IPC: G01L1/18 ,  G01B7/16

Abstract: In an embodiment an electric circuitry includes at least a first delay chain of a plurality of delay elements and at least a second delay chain of a plurality of delay elements being arranged on a substrate, the respective delay elements of the at least one first and second delay chains are configured to provide a propagation delay time depending on strain applied to the substrate, wherein the delay elements of the at least one first delay chain have another orientation on the substrate than the delay elements of the at least one second delay chain, and a processing circuit configured to determine a magnitude of the strain applied on the substrate based on a first signal propagation delay time of the first delay chain and a second signal propagation delay time of the second delay chain.