Abstract
This paper describes the results of accuracy tests of the structural sensing method proposed by the authors. We have been developing the structural sensing method using the wireless sensor network and the artificial vibrator which is able to excite very accurate harmonic vibrations to a structure with a known force function. We conduct some laboratory experiments using a simple beam to investigate the measurement accuracy of the prototype system. The results show that the prototype is able to measure the frequency response function accurately. The results also show that the response of the simple beam clearly depends on the surrounding thermal condition.
