THE 'BLIND' METHOD OF DYNAMIC ERROR CORRECTION FOR THE SECOND ORDER SYSTEM
Abstract
The paper presents results of simulation investigations of the measuring system, which enables measuring, with very small dynamic error, of rapidly changing signals using inexpensive transducers of not particularly good dynamic performance. Two methods for self-identification of the system sensor parameters are presented. The self-identification is performed using solely the measured signal at the system operating site. The system itself performs the correction of dynamic errors. Therefore the system shows small sensitivity to adverse influence of the operating conditions on the transducers dynamic properties. The investigations have been carried out for the second order, oscillatory and inertial transducers. The presented methods of correction can be applied to measuring of both: periodic and non-periodic signals. The simulation results, presented in a graphical form, illustrate the dependence of the correction effectiveness on the system selected parameters. Created programming tools make possible for testing the system in the neighbourhood of the selected operating point.
Event details
- Event
- XVII IMEKO World Congress
- Place
- Dubrovnik, CROATIA
- Time
- 22 June 2003 - 28 June 2003
- Website
- http://www.hmd.hr/imeko/