scholarly journals A low-power data acquisition system for geomagnetic observatories and variometer stations

2017 ◽  
Author(s):  
Achim Morschhauser ◽  
Jürgen Haseloff ◽  
Oliver Bronkalla ◽  
Carsten Müller-Brettschneider ◽  
Jürgen Matzka
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Quality Standard ◽  
Acquisition System ◽  
Raspberry Pi ◽  
Time Data ◽  
Analog To Digital ◽  
High Quality Standard ◽  
Embedded Pc ◽  
One Year

Abstract. A modern geomagnetic observatory must provide data of high stability, continuity, and resolution. The INTERMAGNET network has therefore specified quantitative criteria to ensure a high quality standard of geomagnetic observatories. Here, we present a new data acquisition system which was designed to meet these criteria, in particular with respect to 1 Hz data. This system is based on a Raspberry Pi embedded PC and a modern 24 bit analog-to-digital converter and runs a C++ data acquisition software which is compatible with the POSIX standard. As a result, the data acquisition system is modular, cheap, flexible, and can be operated in remote areas with limited power supply. In addition, the system is capable of real-time data transmission, using a reverse SSH tunnel to work with any network available. We have successfully tested the system hardware at the Niemegk observatory for a period of one year and subsequently installed at the Tatuoca observatory in Brazil.

scholarly journals A low-power data acquisition system for geomagnetic observatories and variometer stations

2017 ◽  
Vol 6 (2) ◽  
pp. 345-352 ◽  
Author(s):  
Achim Morschhauser ◽  
Jürgen Haseloff ◽  
Oliver Bronkalla ◽  
Carsten Müller-Brettschneider ◽  
Jürgen Matzka
Keyword(s):  
Data Acquisition ◽  
Data Acquisition System ◽  
Quality Standard ◽  
Acquisition System ◽  
Raspberry Pi ◽  
Time Data ◽  
Data Acquisition Software ◽  
Limited Power ◽  
High Quality Standard ◽  
Embedded Pc

Abstract. A modern geomagnetic observatory must provide data of high stability, continuity, and resolution. The INTERMAGNET network has therefore specified quantitative criteria to ensure a high quality standard of geomagnetic observatories. Here, we present a new data acquisition system which was designed to meet these criteria, in particular with respect to 1 Hz data. This system is based on a Raspberry Pi embedded PC and runs a C+ +  data acquisition software. As a result, the data acquisition system is modular, cheap, and flexible, and it can be operated in remote areas with limited power supply. In addition, the system is capable of near-real-time data transmission, using a reverse SSH tunnel to work with any network available. The system hardware was successfully tested at the Niemegk observatory for a period of 1 year and subsequently installed at the Tatuoca observatory in Brazil.

A Daisy architecture for the multiprocessor real time data acquisition system of the Thor Tokamak experiment

1986 ◽  
Vol 17 (5) ◽  
pp. 285-296 ◽  
Author(s):  
Massimo Annunziata ◽  
Giuseppe Cima ◽  
Paola Mantica ◽  
Giacomo R. Sechi
Keyword(s):  
Data Acquisition ◽  
Real Time ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Time Data ◽  
Real Time Data

LabVIEW-FPGA-Based Real-Time Data Acquisition System for ADITYA-U Heterodyne Interferometry

2021 ◽  
pp. 1-7
Author(s):  
Kiran Patel ◽  
Umesh Nagora ◽  
Hem C. Joshi ◽  
Surya Pathak ◽  
Kumarpalsinh A. Jadeja ◽  
...  
Keyword(s):  
Data Acquisition ◽  
Real Time ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Heterodyne Interferometry ◽  
Time Data ◽  
Real Time Data ◽  
Labview Fpga

Distributed real time data processing architecture for the TJ-II data acquisition system

2004 ◽  
Vol 75 (10) ◽  
pp. 4261-4264 ◽  
Author(s):  
M. Ruiz ◽  
E. Barrera ◽  
S. López ◽  
D. Machón ◽  
J. Vega ◽  
...  
Keyword(s):  
Data Processing ◽  
Data Acquisition ◽  
Real Time ◽  
Data Acquisition System ◽  
Acquisition System ◽  
Time Data ◽  
Real Time Data ◽  
Real Time Data Processing ◽  
Processing Architecture

scholarly journals Low-Cost, High-Frequency, Data Acquisition System for Condition Monitoring of Rotating Machinery through Vibration Analysis-Case Study

Sensors ◽  
2020 ◽  
Vol 20 (12) ◽  
pp. 3493
Author(s):  
César Ricardo Soto-Ocampo ◽  
José Manuel Mera ◽  
Juan David Cano-Moreno ◽  
José Luis Garcia-Bernardo
Keyword(s):  
Data Acquisition ◽  
Condition Monitoring ◽  
Vibration Analysis ◽  
Low Cost ◽  
Data Acquisition System ◽  
Sampling Frequency ◽  
Rotating Machinery ◽  
Acquisition System ◽  
Raspberry Pi

Data acquisition is a crucial stage in the execution of condition monitoring (CM) of rotating machinery, by means of vibration analysis. However, the major challenge in the execution of this technique lies in the features of the recording equipment (accuracy, resolution, sampling frequency and number of channels) and the cost they represent. The present work proposes a low-cost data acquisition system, based on Raspberry-Pi, with a high sampling frequency capacity in the recording of up to three channels. To demonstrate the effectiveness of the proposed data acquisition system, a case study is presented in which the vibrations registered in a bearing are analyzed for four degrees of failure.

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