Inertial sensor for an autonomous data acquisition of a novel automotive acoustic measurement system

Author(s):  
Johannes Masino ◽  
Matthias Luh ◽  
Michael Frey ◽  
Frank Gauterin
2006 ◽  
Vol 128 (06) ◽  
pp. 32-34
Author(s):  
Jean Thilmany

This article explains the use of data acquisition in different fields of work apart from engineering. The article also presents a case study to research on disease transmission. A step-by-step feeding chart gives researchers an obvious way to see exactly how and when the disease is transferred, a crucial tool they can use in their quest to end that point of contact. In another case study, a piano maker is gathering waveforms with data acquisition hardware and software, but to a much different end. Sound engineers at Czech piano maker Petrof use an extensive acoustic measurement system to assure that the sound quality of Petrof pianos is top of the line. Many manufacturers turn to personal computers running Windows software. Petrof engineers got around the problem by implementing data acquisition hardware that lets them collect data continuously and interpret it in tandem in accompanying software. They use hardware from Microstar Laboratories of Bellevue, Washington, and MATLAB visualization software from MathWorks in Natick, Massachusetts.


Sensors ◽  
2021 ◽  
Vol 21 (4) ◽  
pp. 1297
Author(s):  
Viktor Skrickij ◽  
Eldar Šabanovič ◽  
Dachuan Shi ◽  
Stefano Ricci ◽  
Luca Rizzetto ◽  
...  

Railway infrastructure must meet safety requirements concerning its construction and operation. Track geometry monitoring is one of the most important activities in maintaining the steady technical conditions of rail infrastructure. Commonly, it is performed using complex measurement equipment installed on track-recording coaches. Existing low-cost inertial sensor-based measurement systems provide reliable measurements of track geometry in vertical directions. However, solutions are needed for track geometry parameter measurement in the lateral direction. In this research, the authors developed a visual measurement system for track gauge evaluation. It involves the detection of measurement points and the visual measurement of the distance between them. The accuracy of the visual measurement system was evaluated in the laboratory and showed promising results. The initial field test was performed in the Vilnius railway station yard, driving at low velocity on the straight track section. The results show that the image point selection method developed for selecting the wheel and rail points to measure distance is stable enough for TG measurement. Recommendations for the further improvement of the developed system are presented.


1971 ◽  
Vol 49 (1A) ◽  
pp. 135-135
Author(s):  
R. W. Higgs ◽  
P. M. D'Amico ◽  
L. J. Eriksson

2017 ◽  
Vol 68 (3) ◽  
pp. 200-205
Author(s):  
Adam Idzkowski ◽  
Jerzy Gołębiowski ◽  
Wojciech Walendziuk

Abstract The article presents the analysis of metrological properties of a two-current-source supplied circuit. It includes such data as precise and simplified equations for two circuit output voltages in the function of relative resistance increments of sensors. Moreover, graphs showing nonlinearity coefficients of both output voltages for two resistance increments varying widely are presented. Graphs of transfer resistances, depending on relative increments of sensors resistance were also created. The article also contains a description of bridge-based circuit realization with the use of a computer and a data acquisition (DAQ) card. Laboratory measurement of the difference and sum of relative resistance increments of two resistance decade boxes were carried out indirectly with the use of the created measurement system. Measurement errors were calculated and included in the article, as well.


2017 ◽  
Vol 60 (3) ◽  
pp. 211-215 ◽  
Author(s):  
A. F. Yanin ◽  
I. M. Dzaparova ◽  
V. I. Volchenko ◽  
E. A. Gorbacheva ◽  
A. N. Kurenya ◽  
...  

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