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- W4382074022 abstract "The importance of integrated diagnostic systems grows, increasing safety and reducing the cost of operating machines and structures. For serially manufactured machines and structures inexpensive monitoring systems are needed. One of the developed solutions could be the replacement of the calibrated accelerometers with piezoelectric films. Such configuration of the system implies the methods that allow monitoring and diagnostic with uncalibrated sensors. As the film sensitivity parameters are not specified, it is necessary to determine experimentally the characteristics of individual piezo films. The experimental study has been completed by testing a batch of 50 piezo films. Each tested film was glued to a thin metal specimen, which is dynamically loaded with tensile and compressive stresses at a fixed frequency and amplitude. The sensitivity factor of the piezo film was evaluated using dynamic tests followed by temperature control. The testing setup and testing methods are described. Data processing techniques with results of development are performed. The study allowed establishing the dependence of sensitivity of piezo-film sensors on temperature, the confidence interval for the linear regression coefficient for the investigated temperature range. The results allow recognizing the piezo electric films (PVDF) as the sensors acceptable for use in vibration diagnostics and structural monitoring systems." @default.
- W4382074022 created "2023-06-27" @default.
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- W4382074022 date "2023-05-24" @default.
- W4382074022 modified "2023-09-24" @default.
- W4382074022 title "Sensitivity spread of piezo electric films used as sensors for machine and structural monitoring" @default.
- W4382074022 doi "https://doi.org/10.22616/erdev.2023.22.tf106" @default.
- W4382074022 hasPublicationYear "2023" @default.
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