Conclusions
The utilization of inversely-symmetrical natural oscillations of the measuring instrument's elastic part makes it possible to design low-frequency instruments for measuring dynamic processes.
The above method of cementing strain gauges leads to the elimination of the recording error due to the natural oscillations of the instrument, or to the reduction of the error to the required value.
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Apanasov, V.A., Sherdakov, P.M. Spring strain-gauge deflectometer. Meas Tech 8, 878 (1965). https://doi.org/10.1007/BF00981559
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DOI: https://doi.org/10.1007/BF00981559