Articles | Volume 10, issue 1
Regular research article
12 Mar 2021
Regular research article |  | 12 Mar 2021

Creep adjustment of strain gauges based on granular NiCr-carbon thin films

Maximilian Mathis, Dennis Vollberg, Matthäus Langosch, Dirk Göttel, Angela Lellig, and Günter Schultes


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Short summary
NiCr-carbon thin-film strain gauges offer the outstanding characteristic of a very high strain sensitivity. This can be very advantageous for many high-precision mechanical sensors like load cells. A downside of sensors based on these NiCr-carbon strain gauges is a rather large creep error, meaning reversible signal deviations at a constant load. We present two applicable methods for adjustment of the creep error: a modification of the film composition and a modification of the strain transfer.