In-plane shear piezoelectric wafer active sensor phased arrays for structural health monitoring

2016 ◽  
Author(s):  
Wentao Wang ◽  
Wensong Zhou ◽  
Peng Wang ◽  
Chonghe Wang ◽  
Hui Li
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Phased Arrays ◽  
Plane Shear ◽  
Structural Health ◽  
Active Sensor ◽  
Piezoelectric Wafer

Piezoelectric Wafer Active Sensor Structural Health Monitoring of Space Structures

2010 ◽  
Vol 21 (9) ◽  
pp. 921-940 ◽  
Author(s):  
Andrei Zagrai ◽  
Derek Doyle ◽  
Vlasi Gigineishvili ◽  
Jacob Brown ◽  
Hugh Gardenier ◽  
...  
Keyword(s):  
Structural Health Monitoring ◽  
Health Monitoring ◽  
Space Structures ◽  
Structural Health ◽  
Active Sensor ◽  
Piezoelectric Wafer

Impact Detection Using an Array of Piezoelectric Wafer Active Sensors and a Microcontroller Unit

2010 ◽  
Author(s):  
Abraham Light-Marquez ◽  
Andrei Zagrai
Keyword(s):  
Structural Health Monitoring ◽  
Sensor Network ◽  
Health Monitoring ◽  
Detection System ◽  
Active Sensors ◽  
Structural Health ◽  
Impact Detection ◽  
Piezoelectric Wafer Active Sensors ◽  
Piezoelectric Wafer ◽  
The Impact

This report discusses the development of an embeddable impact detection system utilizing an array of piezoelectric wafer active sensors (PWAS) and a microcontroller. Embeddable systems are a critical component to successfully implement a complete and robust structural health monitoring system. System capabilities include impact detection, impact location determination and digitization of the impact waveform. A custom algorithm was developed to locate the site of the impact.. The embedded system has the potential for additional capabilities including advanced signal processing and the integration of wireless functionality. For structural health monitoring applications it is essential to determine the extent of damage done to the structure. In an attempt to determine these parameters a series of impact tests were conducted using a ball drop tower on a square aluminum plate. The response of the plate to the impact event was recorded using a piezoelectric wafer sensor network attached to the surface of the plate. From this testing it was determined that several of the impact parameters are directly correlated with the features recorded by the sensor network.

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