The development of a versatile magnetoelastic sensor prototype for on-line elastic deformation monitoring and fracture alarm in civil engineering is reported. The sensor is based on the variation of resonant longitudinal magnetoelastic waves amplitude due to elastic status change in the amorphous Fe62.5Co6Ni7.5Zr6Cu1Nb2B15 active core. Tests on a tufa wall under mass loading were conducted. The obtained results show a good reliability and sensitivity (1mV/10 mu m) of the sensor response in the mu m-cm deformation range. The sensor is able to predict the approaching to the fracture regime, monitoring a preceding characteristic behavior. (c) 2005 Elsevier B.V. All rights reserved.
Magnetoelastic sensor for real-time monitoring of elastic deformation and fracture alarm / C., Hison; Ausanio, Giovanni; A. C., Barone; Iannotti, Vincenzo; E., Pepe; Lanotte, Luciano. - In: SENSORS AND ACTUATORS. A, PHYSICAL. - ISSN 0924-4247. - STAMPA. - 125:1(2005), pp. 10-14. [10.1016/j.sna.2005.05.019]
Magnetoelastic sensor for real-time monitoring of elastic deformation and fracture alarm
AUSANIO, GIOVANNI;IANNOTTI, VINCENZO;LANOTTE, LUCIANO
2005
Abstract
The development of a versatile magnetoelastic sensor prototype for on-line elastic deformation monitoring and fracture alarm in civil engineering is reported. The sensor is based on the variation of resonant longitudinal magnetoelastic waves amplitude due to elastic status change in the amorphous Fe62.5Co6Ni7.5Zr6Cu1Nb2B15 active core. Tests on a tufa wall under mass loading were conducted. The obtained results show a good reliability and sensitivity (1mV/10 mu m) of the sensor response in the mu m-cm deformation range. The sensor is able to predict the approaching to the fracture regime, monitoring a preceding characteristic behavior. (c) 2005 Elsevier B.V. All rights reserved.I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.
