A Data Acquisition System based on high sampling rate oscilloscopes

Author(s):  
G. Bourlis ◽  
T. Avgitas ◽  
A. Leisos ◽  
I. Manthos ◽  
A. Tsirigotis ◽  
...  
2012 ◽  
Vol 591-593 ◽  
pp. 1758-1761
Author(s):  
Su Ying Hu ◽  
He Bao Yu

PDA, one product from iba AG, is one open progress data acquisition system used for automatic control system. After the simple introduction about the PDA, an application in AISC hot-strip Rolling Mill was shown for analyzing the reason of strip block. The fact showed that the PDA system had many advantage, high sampling rate, highly real-time performance, highly stability, and provide impersonal and accurate evidence for driven system commissioning. Also, this system could record data for fast fault analysis and time sequence analyzing of AUTO control system.


2014 ◽  
Vol 635-637 ◽  
pp. 896-900
Author(s):  
Rui Qing Mao

Data Acquisition System is very important for Environmental Detection Robot in its self-positioning or measuring the spatial distribution of the concentration of poisonous and harmful gases, so the sampling frequency adjustable multi-channel synchronous data acquisition system was designed to satisfy the requirement of Environmental Detection Robot. Signal conditioning circuit,AD7606 interface circuit and the sampling frequency adjustable function were introduced in detail. The performance test results indicate that the data acquisition system can acquire multi-channel Data Simultaneously in real time, furthermore, the sampling rate and input voltage range can be set according to need, its provides the guarantee For environmental detection robot's follow-up data analysis.


2012 ◽  
Vol 239-240 ◽  
pp. 865-868
Author(s):  
Chun Fu Li ◽  
Yan Qin Li

A data acquisition system for electronic automatic transmission test, which makes use of American NI’s data acquisition card, is designed based on Virtual Instrument. The data can be collected by the data acquisition system include automatic transmission oil pressure, solenoid duty, as well as speed of turbine and output shaft of transmission and throttle degree of engine and so on. The key problems of the system design are measurement method of automatic transmission solenoid duty, signal conditioning circuit design and how to improve sampling rate of the system. Test platform is of a armored vehicle which has equipped a high-power electronic automatic transmission. The automatic transmission shift control strategy and characteristics of throttle oil pressure etc can be obtained through test data acquisition.


2018 ◽  
Vol 10 (1) ◽  
pp. 1-11
Author(s):  
Abdullah Al Amin ◽  
K Siddique E Rabbani

In biomedical instrumentation, computer based data acquisition system is required for recording of physiological parameters and bioelectric signals, which allows signal processing, display, analysis and storage in digital media. However, Most of the commercially available PC based Data Acquisition systems are of very high cost and requires specific commercial software, again at a very high cost. Moreover, if the data is not stored in raw binary or known format, it is not possible for the user to use the data in other system or software of their own choice. Therefore, a low cost, simple and open source PC based data acquisition system for biomedical application would be very useful for biomedical instrument developers and researchers in the low resource countries. In this work, we present such development of data acquisition system. The developed system utilizes an 8-bit ordinary low cost microcontroller and some electronic circuit component to develop the data acquisition system and implementation of USB 1.1 (Universal Serial Bus) interface to PC. The onboard 10-bit ADC of the microcontroller was used for analog data sampling. Two sampling and data transfer mode is implemented, (i) Continuous mode with low sampling rate (800 sample/sec) and practically real time plotting and (ii) Batch mode, with high sampling rate (76.9 k sample/sec) but with batch type plotting. To evaluate the system, PC side GUI (Graphical User Interface) software was also developed. The GUI of system shows that a test sinusoidal signal is reproduced very nicely without any amplitude and phase distortion within the frequency band of 1 to 10 KHz. The system is suitable for low frequency bioelectric signals like ECG, EEG etc. and as well as high frequency signal like EMG, NCV etc. The system is low cost, miniature, simple, and efficient and being used in several indigenously developed medical devices like ECG, EMG, NCV and FIM [Rabbani et al, 1999] at the authors’ department with excellent satisfactory results.Bangladesh Journal of Medical Physics Vol.10 No.1 2017 1-11


2021 ◽  
Author(s):  
Muhammad Nadeem

In a setup for a system long term stability and reliability test, sensors are used to measure physical quantities, affecting the behavior of the system, by sampling the sensor readings, convert it to digital numerical value and saving it for further detail analysis. The sensors are wired to a central location to collect and log data, due to extensive wiring requirements the setup is very difficult and sometimes even impossible to implement. This project presents an implementation of high speed wireless data acquisition system which samples sensors output at high speed (5 KHz), converts it to digital numerical form and sends wirelessly to central data gathering unit thus avoiding home run wiring from each sensor to central data gathering unit where it is logged on USB flash drive and send to PC for real time display. The implementation target was wireless link between a transmitter module, serving a maximum of 8 sensors at 5 KHz sampling rate and 16bit ADC resolution for each sensor, to data gathering unit. The implementation does fall short on specification on number of channels and sampling rate due to limitation of over the air data rate of the radio module, what we were able to achieve is 4 channels of 16 bit ADC resolution at 2 KHz sampling rate using radio module with 300 Kbps over the air data rate. Using different sensors and with different configurable settings the tests shows that the stored data at the data gathering unit and the data stored using wired data acquisition system has no difference. For future improvement radio module with over the air data rate (1.55 Mbps) which allows multiple transmitters connected wirelessly to a single data gathering unit providing more flexibility in sensor deployment. Even though the implementation falls short on some of the features but with using improved radio module and/or using some compression techniques on ADC data, before sending data wirelessly, these short comings could be overcome easily.


2013 ◽  
Vol 333-335 ◽  
pp. 452-459 ◽  
Author(s):  
Ming Yu Zhou ◽  
Xuan Zhou ◽  
Guang Yu Zheng ◽  
Shu Sheng Peng

In this paper, a high-speed data acquisition system based on FPGA is introduced, which has three different channels with one 5Msps sampling rate and 3×256Mb NAND FLASH. This system is controlled by a large scale FPGA chip from Xilinx Inc., XC3S500E-4FG320C. The collected data are first stored in nonvolatile flash on this fuse in-orbit and imported into a USB disk after down-falling. The main hardware and software design of each module are introduced in detail. Experiment results are shown in the final chapter.


2019 ◽  
Author(s):  
Feng Guo ◽  
Qisheng Zhang ◽  
Qimao Zhang ◽  
Wenhao Li ◽  
Yueyun Luo ◽  
...  

Abstract. Seismic exploration equipment has developed rapidly over the past few decades. One such piece of equipment is a centralized seismograph, which plays an important role in engineering, so improving its performance is of great scientific significance. However, there is still a gap between seismic exploration equipment that is inde-pendently developed by China and that developed worldwide; this gap needs to be bridged via the advancements made in technology. In this research, the core part of general seismic data acquisition devices is packaged to develop a centralized seismic data acquisition system (Named as CUGB-CS48DAS) that has independent operating ability and high scalability, which can be used for engineering seismic and electrical prospecting. The low-power-consumption computer of the system comprises a 24-bit Σ-△ modulation A/D converter and 48 sampling channels with an optional sampling rate of 50 Hz to 64 KHz, crosstalk rejection ratio ≥ 80 dB, dynamic range ≥ 120 dB, frequency response range of DC to 16 KHz, synchronization accuracy better than 200 ns, and data transmission speed ≥ 90 Mbps. With regard to the host computer, the ar-chitecture of the control software is smart, and it can integrate the multiple functions of data acquisition, preprocessing, and self-testing; clear interfaces reduce the com-plexity of development and migration.


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