| Zugriffsnummer | 17465 |
| Dokumenttyp | Konferenzartikel |
| Peer Review | unbekannt |
| Sprache | Englisch |
| Titel | Data acquisition and processing for PTB's impact force standard machine |
| Autor(in); Institution |
Bruns, Thomas; 1.3, Kinematik, PTB-Braunschweig
Kobusch, Michael; 1.3, Kinematik, PTB-Braunschweig
|
| Quelle/Jahr | 19th International Conference on Force, Mass and Torque, IMEKO TC 3: unrefereed full papers:(2005) |
| Availability | [CD-ROM] ; file name: 11.pdf |
| Herausgeber(in) |
Eltawil, Alaa eldin A.; National Institute of Standards (NIS), EGYPT
|
| URL | |
| Verlag | Gizah: National Institute of Standards (NIS) |
| Konferenzangaben | 19th International Conference on Force, Mass & Torque: Theory and Application in Laboratories and Industries, Cairo, 19-23, February, 2005, Egypt |
| Freie Schlagworte | impact force ; data analysis ; demodulation |
| Zusammenfassung | The 20 kN Impact Force Standard Machine (IFSM) of PTB’s working group “Impact Dynamics” is supposed to provide traceability for dynamic force by measuring the acceleration of a steel body using a laser-Dopplerinterferometer (LDI). The acceleration itself is derived from time dependant velocity data by numerical differentiation, which is a process prone to noise amplification. Therefore a thorough investigation of the data flow and data analysis algorithms concerning robustness, accuracy and the proliferation of disturbances is necessary. This paper describes the data acquisition system together with three different algorithms for digital demodulation of the LDI signal with regard to the boundary conditions given by the parameters of the equipment. |
