scholarly journals Data Acquisition System for the Characterization of Biomechanical and Ergonomic Thresholds in Driving Vehicles

2020 ◽  
Vol 12 (17) ◽  
pp. 7013 ◽  
Author(s):  
Juan F. Dols ◽  
Vicent Girbés-Juan ◽  
Álvaro Luna ◽  
Javier Catalán
Keyword(s):  
Data Acquisition ◽  
Experimental Tests ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Motor Vehicles ◽  
Steering Wheel ◽  
Assessment Procedure ◽  
Definition Of ◽  
Driving Fitness

Directive (EU) 2015/653 on driving licenses has involved the modification of different codes that must appear on driver’s licenses. The definition of specific codes (20.07 and 40.01) compels measurement of the braking and steering forces. Performing practical tests to assess the driving fitness of special drivers will help to determine the maximum force that a driver can apply on primary controls when driving. From that point, definition of car control adaptations required to supply their functional deficiencies can be stated. This article describes a data acquisition system designed and developed for obtaining data from experimental tests based on the execution of habitual driving manoeuvres (braking, lane change and roundabouts). The data gathered will allow for definition of the thresholds of biomechanical values (forces on the steering wheel and brake pedal) and ergonomic values (driver’s upper extremity mobility ranges) necessary for driving motor vehicles. The results have shown that application in real driving tests of the data acquisition system designed provides valid and suitable results for the case studied. Therefore, it will contribute to substantially improving the assessment procedure for drivers in general and for disabled people in particular when obtaining or renewing their driving licenses.

Inter and Intrablade Row Laser Velocimetry Studies of Gas Turbine Compressor Flows

1988 ◽  
Vol 110 (3) ◽  
pp. 369-376 ◽  
Author(s):  
M. C. Williams
Keyword(s):  
Data Acquisition ◽  
Gas Turbine ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Fan Studies ◽  
Data Rates ◽  
Recorded Data ◽  
Multistage Compressor ◽  
Gas Turbine Compressor

Characterization of the aerodynamics of the flows within gas turbine intrablade passages requires the development of sensitive laser-Doppler velocimeters, a data acquisition system capable of efficiently and accurately handling substantial quantities of data, and appropriate methods of posttest data analysis and display to maximize the value of the recorded data. Pratt & Whitney developed a confocal LDV and data acquisition system that were first employed in the mid-1970s for gas turbine intrablade fan studies. Experience gained through use of the instruments in several aerodynamic studies has provided the basis for the development of a second generation system. The performance of the recently enhanced instrument configured as a single-component LDV has been demonstrated by a NASA-sponsored fan study in which approximately 200 million valid velocity signals were rapidly acquired. The high resolution and data rates achieved permitted detailed mappings of the flow at a variety of conditions and locations. Following this successful study, a second NASA-sponsored program was initiated to assess the feasibility of utilizing this LDV capability to perform detailed stator–rotor interaction studies in a multistage compressor. The equipment employed in these studies will be described and data typical of the findings will be presented.

Feasibility of a Portable Data Acquisition System for Driver Performance Testing

1996 ◽  
Vol 40 (20) ◽  
pp. 1017-1021 ◽  
Author(s):  
Richard J. Carter ◽  
Philip F. Spelt ◽  
Frank S. Barickman
Keyword(s):  
Phase I ◽  
Data Acquisition ◽  
Data Storage ◽  
Research Program ◽  
Performance Testing ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Driver Performance ◽  
Design Requirements ◽  
Definition Of

A research program oriented toward the development of a portable data acquisition system for driver performance testing was conducted. This paper describes three tasks which were performed during phase I of the research, namely, identification of parameters that should be measured and definition of the minimum set of parameters, development of design requirements for the data acquisition system, and identification of the data storage and transmission architecture.

scholarly journals Automatic Instrumentation with a PC-based Data Acquisition System for Experiments in Optical Characterization of Materials

2004 ◽  
Vol 14 (1) ◽  
pp. 14-18
Author(s):  
J. A. Andrade Lucio ◽  
O. Vite-Chávez ◽  
Roberto Olivera-Reyna ◽  
Reynel Olivera-Reyna ◽  
O. G. Ibarra-Manzano ◽  
...  
Keyword(s):  
Automatic Control ◽  
Data Acquisition ◽  
Programming Language ◽  
Optical Characterization ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Graphical Programming ◽  
Data Acquisition Card ◽  
Characterization Of Materials

A simple automatic control for applications of optical characterization of materials using theoptical Z-scan technique is presented in this paper. The emphasis is placed in the automation process. For this purpose, a communication I/O port of a PCI-MIO-16E data acquisition card (from National Instruments) was used and the graphical programming language LabVIEW.

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