High Speed Thermal Imaging applied to a Long Pulse Resonant Converter Modulator for Power device Reliability Assessment

2008 ◽  
Author(s):  
F. Carastro ◽  
J. C. Clare ◽  
P. W. Wheeler ◽  
D. Cook ◽  
M. Musallam ◽  
...  
Keyword(s):  
Thermal Imaging ◽  
High Speed ◽  
Reliability Assessment ◽  
Power Device ◽  
Resonant Converter ◽  
Device Reliability ◽  
Long Pulse

Evaluation of Package Defects by Thermal Imaging Techniques

2002 ◽  
Author(s):  
Yongmei Liu ◽  
Rajen Dias
Keyword(s):  
Infrared Thermography ◽  
Thermal Imaging ◽  
High Speed ◽  
Imaging Techniques ◽  
Thermal Response ◽  
Analysis Tool ◽  
Nondestructive Analysis ◽  
Ir Camera ◽  
External Heating

Abstract Study presented here has shown that Infrared thermography has the potential to be a nondestructive analysis tool for evaluating package sublayer defects. Thermal imaging is achieved by applying pulsed external heating to the package surface and monitoring the surface thermal response as a function of time with a high-speed IR camera. Since the thermal response of the surface is affected by the defects such as voids and delamination below the package surface, the technique can be used to assist package defects detection and analysis.

scholarly journals Progress in Data Transmission and Storage for Long Pulse Data Acquisition System

2021 ◽  
Vol 2113 (1) ◽  
pp. 012065
Author(s):  
Yu Gu ◽  
Mengqi Fan ◽  
Chuanqian Tang ◽  
Guojing Zhang ◽  
Xiaodan Zhang
Keyword(s):  
Control System ◽  
Data Acquisition ◽  
Data Transmission ◽  
High Speed ◽  
Short Pulse ◽  
Test System ◽  
Data Types ◽  
Pulse Experiment ◽  
Long Pulse ◽  
And Storage

Abstract Since the study in the field of fusion has gradually developed toward the long-pulse experiment mode, long-pulse data has gradually become one of the main data types for pulsed experiments in the field of fusion. For long-pulse data, which is a kind of pulse-type data, it will be more difficult to transmit and store than short-pulse data because of its significant characteristics. In addition, in the design of data acquisition and control system (DACS) in fusion field, Experimental Physics and Industrial Control System (EPICS) has now gradually become the main framework of experimental control system to meet the diversity of devices and complexity of subsystems in large experimental system. However, due to the limitation of EPICS, its effectiveness in handling data transmission and storage under high speed data acquisition is not satisfactory. To solve the data transmission and storage under high-speed sampling, this paper proposes a data transmission and storage solution based on TCP/IP protocol and MDSplus database, which is designed with the concept of segmentation, i.e., data generated from experiments longer than 100 seconds are uploaded and stored in a segmented form. Currently, this system has been tested and applied, and the test result shows that the solution is feasible and the overall test system operates stably and reliably.

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