Patent ID: 9593990
Date: 2017-03-14
CPC Classifications: G01L,G01M

Claim:
1. A stress monitoring device of elasto-magneto-electric (EME) effect type, for monitoring stress on arbitrary cross-sections of a ferromagnetic component in a real-time way, the device comprising: one or more magnetic field generating units; one or more magneto-electric (ME) sensing units; one or more support skeletons; and a signal controlling and conditioning instrument comprising a drive circuit and a data acquisition and processing device; wherein: said ferromagnetic component is subjected to tension, compression, bending, torsion, or a combination thereof; said arbitrary cross-sections have arbitrary shapes; said one or more magnetic field generating units are adapted to generate a magnetic field in a detected area around the ferromagnetic component, wherein the ferromagnetic component is magnetized by the magnetic field; said one or more support skeletons are used to set up said one or more magnetic field generating units and fix said one or more ME sensing units; said one or more ME sensing units are disposed in one or more locations near the arbitrary cross-sections; said one or more ME sensing units comprise ME laminated composites; said one or more ME sensing units are adapted to sense said magnetic field and to produce an electrical signal V said drive circuit is connected to said one or more magnetic field generating units and controls said one or more magnetic field generating units to generate said magnetic field; and said one or more ME sensing units are connected to said data acquisition and processing device, wherein said one or more ME sensing units send said electrical signal V