| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 720903 | IFAC Proceedings Volumes | 2007 | 6 Pages |
Actuators and Sensors, Implemented Solutions.The frequency response is undoubtly one of the basic methods of measure and characterization of systems. The knowledge of this technique and its application is essential in subjects such as Automatic and Electronic. In this paper a low cost circuit that allows to obtain, automatic or semiautomaticaly, the frequency response of a linear system is presented. This circuit, that responds to a specific design of the authors, will be called “bodemeter” due to its obvious application for drawing the Bode plot. The input and output of the system to study are directly connected to the bodemeter. This can be used with conventional instrumentation or it can be connected to a personal computer through a data acquisition card. The computer does not require any special characteristic as for speed, and it is solely recommendable to use a graphic output to visualize the plots; this characteristic is broadly overcome at present. The data acquisition card does not need special features either and any conventional low cost card can be used.
