Stress composite sensor and stress measuring device using the same for structure

Abstract

A stress composite sensor has a plurality of sensor elements each including a base plate and a stress sensor disposed thereon for delivering stress signals indicating stress in one direction alone. The sensor elements have the base plates fixed together in a common plane to form a sensor segment wherein the stress sensors are provided at intervals to provide signals indicating stress in the one direction. The stress sensors optionally each include strain gauges and in an embodiment include four strain gauges. The sensor elements are arranged in rows in an embodiment and are optionally integrally fixed together.

1 . A stress composite sensor characterized in that a plurality of stress sensors or a plurality of rows of stress sensors comprising strain gauges are integrated by being fixed on the same plane of a base plate at intervals, the arrangement being such that each stress sensor delivers stress signals in one direction alone or a selected stress sensor delivers stress signals in one direction alone.  
   
   
       2 . A stress composite sensor characterized in that stress sensors comprising strain gauges are fixed on the individual surfaces of base plates placed in two mutually orthogonal planes and thereby integrated to provide a sensor segment, a plurality of such sensor segments or a plurality of rows of such sensor segments being connected together or superposed and connected together to form an integral body, the arrangement being such that each sensor segment delivers 2-direction stress signals or a selected sensor segment delivers 2-direction stress signals.  
   
   
       3 . A stress composite sensor characterized in that stress sensors comprising strain gauges are fixed on the individual surfaces of base plates placed in three mutually orthogonal planes and thereby integrated to provide a sensor segment, a plurality of such sensor segments or a plurality of rows of such sensor segments being connected together or superposed and connected together to form an integral body, the arrangement being such that each sensor segment delivers stress signals in three directions or in selected directions or a selected sensor segment delivers stress signals in three directions.