Data Acquisition for 3D Geometric Recording: State of the Art and Recent Innovations

2017 ◽  
pp. 1-26 ◽  
Author(s):  
Andreas Georgopoulos ◽  
Elisavet Konstantina Stathopoulou
Keyword(s):  
Data Acquisition ◽  
State Of The Art

Temperature-Dependent Die Warpage Measurements Up to 400°C

2017 ◽  
Author(s):  
Tobias Mittereder ◽  
Bernhard Ferstl ◽  
Terry Heidmann ◽  
Christian Hollerith
Keyword(s):  
Data Acquisition ◽  
White Light ◽  
State Of The Art ◽  
Thermomechanical Behavior ◽  
Temperature Dependent ◽  
Optical Access

Abstract Temperature-dependent die warpage measurements show the possibility to analyze the thermomechanical behavior during assembly, e.g. within soldering processes. The warpage data acquisition is realized by confocal chromatic white light profilometry in combination with a precision heating/cooling chuck encapsulated in a chamber with optical access. The combination of these two tools allows precise die warpage evaluation under varied device temperature up to +400°C. This method helps to solve emerging challenges due to warpage during assembly of state of the art packages including thin dies and stacked dies as in e.g. 3D-SIPs.

scholarly journals High speed multi-channel data acquisition technique for efficient hardware utilization using quad data rate approach

2018 ◽  
Vol 7 (4) ◽  
pp. 2569
Author(s):  
Priyanka Chauhan ◽  
Dippal Israni ◽  
Karan Jasani ◽  
Ashwin Makwana
Keyword(s):  
Power Consumption ◽  
Data Acquisition ◽  
Resource Utilization ◽  
Field Programmable Gate Array ◽  
High Speed ◽  
State Of The Art ◽  
Data Rate ◽  
Field Programmable ◽  
Sensor Signals ◽  
Acquisition Technique

Data acquisition is the most demanding application for the acquisition and monitoring of various sensor signals. The data received are processed in real-time environment. This paper proposes a novel Data Acquisition (DAQ) technique for better resource utilization with less power consumption. Present work has designed and compared advanced Quad Data Rate (QDR) technique with traditional Dual Data Rate (DDR) technique in terms of resource utilization and power consumption of Field Programmable Gate Array (FPGA) hardware. Xilinx ISE is used to verify results of FPGA resource utilization by QDR with state of the art DDR approach. The paper ratiocinates that QDR technique outperforms traditional DDR technique in terms of FPGA resource utilization.  

Secure sensors data acquisition and communication protection in eHealthcare: Review on the state of the art

2018 ◽  
Vol 35 (4) ◽  
pp. 702-726 ◽  
Author(s):  
Muhammad Yaseen ◽  
Kashif Saleem ◽  
Mehmet A. Orgun ◽  
Abdelouahid Derhab ◽  
Haider Abbas ◽  
...  
Keyword(s):  
Data Acquisition ◽  
State Of The Art ◽  
The State

The Development of a Roller Rig for Experimental Evaluation of Contact Mechanics for Railway Vehicles

2015 ◽  
Author(s):  
Sajjad Z. Meymand ◽  
Milad Hosseinipour ◽  
Mehdi Ahmadian
Keyword(s):  
Data Acquisition ◽  
Contact Mechanics ◽  
State Of The Art ◽  
Lateral Displacement ◽  
Data Acquisition System ◽  
Operating Conditions ◽  
Contact Forces ◽  
Acquisition System ◽  
Design Solution ◽  
Roller Rig

This paper discusses the development of a state of the art single-wheel roller rig for studying contact mechanics and dynamics in railroad applications. The use of indoor-based simulation tools has become a mainstay in vehicle testing for the automotive and railroad industries. In contrast to field-testing, roller rigs offer a controlled laboratory environment that can provide a successful path for obtaining data on the mechanics and dynamics of railway systems for a variety of operating conditions. The idea to develop a laboratory test rig started from the observation that there is a need for better-developed testing fixtures capable of accurately explaining the relatively unknown physics of the wheel-rail contact mechanics and dynamics. Developing a better understanding of such physics would assist with designing faster, safer, and more efficient railroad systems. A review of the existing roller rigs indicated that many desired functional requirements for studying contact mechanics are not readily available. The Virginia Tech Railway Technologies Laboratory (RTL) has embarked on a mission to develop a state-of-the-art testing facility that will allow experimental testing for contact mechanics in a dynamic, controlled, and consistent manner. The VT roller rig is intended to allow for actively controlling all the wheel-rail interface degrees of freedom: cant angle, angle of attack, and lateral displacement. Two AC synchronous servomotors, accompanied with proper gearheads, accurately drive the rotating wheels. A novel force measurement system, suitable for steel on steel contact, is configured to precisely measure the contact forces and torques. The control architecture is developed based on the SynqNet data acquisition system offered by Kollmorgen, the drive-motor and actuator supplier. The Synqnet provides a unified communication protocol between actuators, drives, and data acquisition system; therefore eliminating any difficulty with data conversion among these units. Other auxiliary sensors and measurement systems are implemented to help with characterizing the contact mechanics and contact geometry. This paper will describe the main steps in the design process of the VT roller rig and the final design solution selected. It will also present the testing capabilities of the rig. The design analysis indicates that the rig can successfully meet the set requirements: additional accuracy in measurements, and better control on the design of experiments.

Smart Exploration: from legacy data to state-of-the-art data acquisition and imaging

First Break ◽  
2019 ◽  
Vol 37 (8) ◽  
pp. 71-74 ◽  
Author(s):  
A. Malehmir ◽  
G. Donoso ◽  
M. Markovic ◽  
G. Maries ◽  
L. Dynesius ◽  
...  
Keyword(s):  
Data Acquisition ◽  
State Of The Art ◽  
Legacy Data

A Comprehensive Review on Various Signal Conditioning Methods in Nano-Sensor Based Applications

2020 ◽  
Vol 17 (5) ◽  
pp. 2043-2050
Author(s):  
V. Divya ◽  
S. Sendil Kumar
Keyword(s):  
Data Acquisition ◽  
State Of The Art ◽  
Medical Application ◽  
Signal Conditioning ◽  
Comprehensive Review ◽  
The People ◽  
Data Acquisition Card ◽  
Integration Techniques ◽  
Nano Sensors ◽  
Using Data

An in-depth review on nanosensor technology and signal conditioning models among Nano sensors is discussed in this paper. First, the state of the art in nanosensor technology is surveyed from the device perspective, by explaining the details of the architecture and components of individual nanosensors, as well as the existing manufacturing and integration techniques for nanosensor devices. Secondly, some of the signal conditioning methods with respect to modulation schemes is reviewed here. These discussion may leads to usage of the Nano-sensor in various application and especially in medical application which is very much essential now-a-days. The signals can also be acquired, conditioned, processed and analyzed using Data Acquisition Card (DAC). Further, based on this information or data, medical supervisor can subscribe the required specific suggestions or treatment to the people who are in need in this society.

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