| Summary |
A new method is proposed by authors to measure membrane stresses in two different directions separately, where instead of measuring the membrane stresses directly, the natural frequencies of the membrane within fixed rectangular region resonated by white noise excitation is utilized. In this paper, various problems in the downsizing of measurement equipment for practical application are examined, and clarified both theoretically and experimentally. As a result, the equipment with the measurement accuracy up to 90% or above is developed, and it is clarified that the downsized equipment can be used on the site more easily through the practical range of the membrane stress which exists in the membrane material of the actual membrane structures.
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