High-speed Microcontroller Based System to Real-time Analyzing the Mechanical Waves in Structures
Journal Title: Analele Universitatii "Eftimie Murgu" Resita. Fascicula de Inginerie - Year 2017, Vol 24, Issue 1
Abstract
Nowadays high-speed microcontrollers are employed to accomplish many applications in different domains, due to their flexible characteristics and structures. In this paper, the microcontroller algorithm per-forms a fast time-frequency analysis by discrete Fourier transform (DFT) on variable time portions of the vibration signal. System can be easily customized so that a spectrum with variable range and density is achieved. Also, the real-time microcontroller based system (R-TMBS) has been thought as a stand-alone system as well as to be included in a more complex system, which can function in closed-loop​ when the system feedback is obtained via R-TMBS.
Authors and Affiliations
Ion-Cornel Mituletu, Nicoleta Gillich, Emilian Stanciu, Codrin-Nistor Nitescu
Performance of Helical Coil Heat Recovery Exchanger using Nanofluid as Coolant
Nanofluids are expected to be a promising coolant condidate in chemical processes for heat transfer system size reduction. This paper focuses on reducing the number of turns in a helical coil heat recovery exchanger with...
Considerations on Seismic Design of Installations using Natural Gas Fuel
The paper presents issues relating to existing standards underlying seismic design restrictions for non-structural components (NSC) related to constructions. Are presented measures that can be implemented to maintain a h...
Comparative FEM-based Analysis of Multiphase Induction Motor
This paper presents a comparative study of multiphase induction motor, which has alternately three-, five- and six-phase stator winding. The machine has been designed particularly for this purpose and has individual ring...
Monitoring System Dynamic Regimes with VariableReluctance Synchronous Motors
This paper will present an overview of how can we use a data acquisition (DAQ) device to quickly and easily acquire and present the data of dynamic regimes of variable reluctance synchronous motors. The described monitor...
Practical Platform for Open and Closed Loop Speed Control of an Inverter Driven Asynchronous Machine Used for Teaching Purposes
The paper presents a laboratory setup based on a SIMOVERT MASTER-DRIVES MC Inverter from SIEMENS used for open and closed loop speed control of an induction machine. The platform allows four quad-rant operation of the ma...