Chip ultra-thinning and embedding technology for autonomous sensors array applications

Author(s):  
Philippe Muller ◽  
Francois Iker ◽  
Philippe Soussan ◽  
Eric Beyne ◽  
Geert Carchon ◽  
...  
2006 ◽  
Vol 49 (4) ◽  
pp. 461-472 ◽  
Author(s):  
Zhijun Chen ◽  
Tao Han ◽  
Xiaojun Ji ◽  
Huawei Guo ◽  
Wenkang Shi

Author(s):  
Ernesto Monaco ◽  
Fabrizio Ricci ◽  
Leonardo Lecce ◽  
Natalino Daniele Boffa

The utilization of guided waves generated and sensed by an array of phased sensors allows steering the wave-front in a specific direction (beamforming technique). In this work a linear array of sensors is used to generate an ultrasonic wavefront steered in a specific direction. Numerical simulations are carried out with the LS-DYNA, an explicit Finite Element (FE) code, on a CFRP plate. The damage to be identified is a delamination produced by an impact (BVID). The array of sensors consists of a number of disk-shaped piezo patches. From the echo reflected and returning back to the array, it’s possible to evaluate the time of flight of the signal (TOF) from which the distance of the damage from the sensors array can be determined, and the angular position of the crack by evaluating the time shift of the signal received by each sensor in the array. The experimental tests are carried out in a 0.5m × 0.5m ×2.2 mm CFRP plate with the same sensor array and delamination used in the simulation. A number of receivers located along the panel edges have been also used to detect the damage direction in pitch-catch mode.


Author(s):  
Supachai Vongbunyong ◽  
Perawat Roengritronnachai ◽  
Savanut Kongsanit ◽  
Chawisa Chanok-owat ◽  
Pongsakorn Polchankajorn

2013 ◽  
Vol 475-476 ◽  
pp. 550-553
Author(s):  
Hua Fang ◽  
Yun Xiang Liu ◽  
Wan Jun Yu ◽  
Wen Ju Li ◽  
Ming Lei Shu

A template technology has been applied to the platform of machine olfaction. The simulation sensor array template receives field odor data or simulates the data via recorders in database, and transmits to the platform. The platform consists of several distributed monitoring subsystems based on the simulation template. Each subsystem matches a set of gas sensors array, and has functions of logging data, communicating and simulating industry application. The data from the subsystem and the preprocessed data are sent to the web server center and stored in the databases. The data has been collected, and sensor performance analyzing are performed by several layer algorithms. While the exchanging algorithms convert the field odor data to gas concentrations with ppm values, the expert systems or recognition algorithms analyze the ppm values and show the application results. All data of each layer are stored in server database systems, and each layer algorithms can been updated and saved. Finally, the supporting platform that applied to industrial monitoring systems, was developed with a kind of industrial configuration softwares, web MIS and databases, and was utilized to realize monitor to the environmental systems by the simulation template.


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