Strain measurement device and overall device with such a strain measurement device

US12352641B2 · kind B2 · utility

Assignee

• BALLUFF GMBH · DE

Inventors

• Manuela Schmidt · Echterdingen, DE
• Jonas Holder · Dettingen, DE
• Florian Liebgott · Stuttgart, DE
• Albert Dorneich · Scharnhauser Park, DE
• Julian Fial · Tübingen, DE
• Gunter Huebner · Seeheim-Jugenheim, DE
• Aakash Grewal · Stuttgart, DE
• Hubertus Breier · Gerstetten, DE

Key dates

• Filing date: Feb 7, 2023
• Grant date: Jul 8, 2025
• Expiry date: Mar 14, 2044

Classification

• Technology area (CPC G): Physics
• CPC primary: G01B7/20
• WIPO field: Measurement
• WIPO sector: Instruments

Abstract

A strain measurement device (10) for electrically determining a strain of a basic body, having a carrier film (12) which can be applied to the basic body (40), an electric measuring loop (14) printed onto the carrier film (12) of conductive printing paste/printing ink, which has a measuring element (16) for generating an electrical signal based on the strain and which has four conducting tracks (18) connected to the measuring element (16) for four-wire sensing, the four conducting tracks (18) each having an electrical conductor connection (22), the conducting tracks (18), the conductor connections (22) and the measuring element (16) being printed with the same printing paste. Furthermore, an overall device (38) with such a strain measurement device (10), the strain measurement device (10) being connected to a base unit (44) which has an evaluation unit (46) and an energy supply unit (48).