Stress composite sensor and structure stress measuring device using the same

摘要

The invention is intended to provide a stress measuring device for a structure, wherein a plurality of stress sensors are composited or integrated to provide an integrated single-packaged stress composite sensor, the latter being used to deliver X-axis, X- and Z-axis or X-, Y- and Z-axis direction stress signals produced in the structure or deliver stress signals in selected directions, so as to make it possible to measure stresses. A hole 3 is formed in the stress concentration region of a structure 2 whose stresses are to be measured, and a 1-direction stress composite sensor P adapted to deliver stress signals in one direction alone, a 2-direction stress composite sensor adapted to deliver in two directions, or a 3-direction stress composite sensor adapted to deliver stress signals in three directions is selectively installed in the hole, whereby X-axis, X- and Z-axis or X-, Y- and Z-axis direction shearing strains produced in the structure or stresses corresponding to the selected stress composite sensor can be selectively measured. IMAGE