Development of environmental vibration evaluation system for infrastructure deterioration diagnosis

This manuscript describes the development concept of an environmental vibration evaluation system for accelerometers in a real environment with acceleration amplitude from micro to large vibrations. The environmental vibration evaluation system consists of a low-frequency triaxial vibration exciter and a test chamber capable of controlling temperature and humidity. In order to evaluate the frequency response of accelerometers while keeping real environmental condition, the uniformity of the vibration table is indicated with frequency range less than 20 Hz.