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Low-cost impact detection and location for automated inspections of 3D metallic based structures.

Morón C, Portilla MP, Somolinos JA, Morales R - Sensors (Basel) (2015)

Bottom Line: The location of strategic piezoelectric sensors on the structure and an electronic-computerized system has allowed us to determine the instant and position at which the impact is produced.The proposed automatic system allows us to fully integrate impact point detection and the task of inspecting the point or zone at which this impact occurs.Experimental results are provided to show the effectiveness of the proposed approach.

View Article: PubMed Central - PubMed

Affiliation: Sensors and Actuators Group, Universidad Politécnica de Madrid, Juan de Herrera 6, Madrid 28040, Spain. carlos.moron@upm.es.

ABSTRACT
This paper describes a new low-cost means to detect and locate mechanical impacts (collisions) on a 3D metal-based structure. We employ the simple and reasonably hypothesis that the use of a homogeneous material will allow certain details of the impact to be automatically determined by measuring the time delays of acoustic wave propagation throughout the 3D structure. The location of strategic piezoelectric sensors on the structure and an electronic-computerized system has allowed us to determine the instant and position at which the impact is produced. The proposed automatic system allows us to fully integrate impact point detection and the task of inspecting the point or zone at which this impact occurs. What is more, the proposed method can be easily integrated into a robot-based inspection system capable of moving over 3D metallic structures, thus avoiding (or minimizing) the need for direct human intervention. Experimental results are provided to show the effectiveness of the proposed approach.

No MeSH data available.


Related in: MedlinePlus

(a) Impact on . Detailed view; (b) Edge signals when impacting on .
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sensors-15-12651-f008: (a) Impact on . Detailed view; (b) Edge signals when impacting on .

Mentions: The first impact is produced in the middle of bar 6. This point is called . The signals measured by the sensors are shown in Figure 8a. The delays between the acoustic signals can be clearly appreciated in this figure.


Low-cost impact detection and location for automated inspections of 3D metallic based structures.

Morón C, Portilla MP, Somolinos JA, Morales R - Sensors (Basel) (2015)

(a) Impact on . Detailed view; (b) Edge signals when impacting on .
© Copyright Policy
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC4507642&req=5

sensors-15-12651-f008: (a) Impact on . Detailed view; (b) Edge signals when impacting on .
Mentions: The first impact is produced in the middle of bar 6. This point is called . The signals measured by the sensors are shown in Figure 8a. The delays between the acoustic signals can be clearly appreciated in this figure.

Bottom Line: The location of strategic piezoelectric sensors on the structure and an electronic-computerized system has allowed us to determine the instant and position at which the impact is produced.The proposed automatic system allows us to fully integrate impact point detection and the task of inspecting the point or zone at which this impact occurs.Experimental results are provided to show the effectiveness of the proposed approach.

View Article: PubMed Central - PubMed

Affiliation: Sensors and Actuators Group, Universidad Politécnica de Madrid, Juan de Herrera 6, Madrid 28040, Spain. carlos.moron@upm.es.

ABSTRACT
This paper describes a new low-cost means to detect and locate mechanical impacts (collisions) on a 3D metal-based structure. We employ the simple and reasonably hypothesis that the use of a homogeneous material will allow certain details of the impact to be automatically determined by measuring the time delays of acoustic wave propagation throughout the 3D structure. The location of strategic piezoelectric sensors on the structure and an electronic-computerized system has allowed us to determine the instant and position at which the impact is produced. The proposed automatic system allows us to fully integrate impact point detection and the task of inspecting the point or zone at which this impact occurs. What is more, the proposed method can be easily integrated into a robot-based inspection system capable of moving over 3D metallic structures, thus avoiding (or minimizing) the need for direct human intervention. Experimental results are provided to show the effectiveness of the proposed approach.

No MeSH data available.


Related in: MedlinePlus