A paper presents a survey of sensor- and actuator-placement problems from various applications that involve a wide range of engineering disciplines. "Smart" structures that contain sensors (e.g., microphones or strain sensors) and actuators (e.g., loudspeakers or piezoelectric actuators) can be used, for example, to control the shapes of airfoils or to suppress noise or structural vibrations. In designing a "smart" structure, one faces the problem of placing limited numbers of sensors and actuators to maximize some measure of performance; typically, the locations must be selected from a large set of candidate locations.

This work was done by Sharon L. Padula of Langley Research Centerand Rex K. Kincaid of the College of William and Mary. L-17839

NASA Tech Briefs Magazine

This article first appeared in the October, 1999 issue of NASA Tech Briefs Magazine.

Read more articles from the archives here.