Design of Data Acquisition and Storage Circuit Based on Linear Array CCD

2014 ◽  
Vol 556-562 ◽  
pp. 1652-1655
Author(s):  
Jian Hong Zhu ◽  
Shao Peng Yang ◽  
Mei Feng Gao
Keyword(s):  
Data Acquisition ◽  
Linear Array ◽  
Clock Pulse ◽  
Spectral Measurement ◽  
Correct Sequence ◽  
Ad Converter ◽  
Linear Array Ccd ◽  
Processing And Storage ◽  
And Storage

In order to ensure the linear array CCD normally and stably working in the spectral measurement, the data acquisition and storage circuit is presented. On the basis of analyzing the ILX511 driving timing, the circuit of data acquisition, processing, and storage based on CCD was designed. The CPLD was used to establish the correct sequence for the CCD clock pulse, AD converter clock, and FIFO writing signal, so the data acquisition, converter, and storage synchronously are achieved. The experiments show that the designed circuit is feasible.

X-ray Diffraction Measurements via a UNIX+ Based System

1984 ◽  
Vol 28 ◽  
pp. 241-247
Author(s):  
D. S. Dunn ◽  
T. F. Marinis
Keyword(s):  
Operating System ◽  
Data Acquisition ◽  
X Ray Diffraction ◽  
X Ray ◽  
Software Interface ◽  
System A ◽  
Unix Operating System ◽  
Processing And Storage ◽  
Data Acquisition Program ◽  
And Storage

We have automated a Seeman-Bohlin Guinier x-ray diffractometer by interfacing it to a minimally configured PDP 11/23 computer. The programs that run on the microcomputer to control the operation of the diffractometer are stored on a mainframe host running the UNIX+ operating system. A software interface allows a particular data acquisition program to be downloaded from the UNIX host and executed on the satellite processor. This same interface allows the collected data to be periodically off-loaded to the host for processing and storage.

Design of Spectral Acquisition System Based on the Linear Array CCD ILX554B

2014 ◽  
Vol 556-562 ◽  
pp. 1926-1931 ◽  
Author(s):  
Mei Feng Gao ◽  
Shao Peng Yang
Keyword(s):  
Data Processing ◽  
Linear Array ◽  
Clock Pulse ◽  
Acquisition System ◽  
Data Conversion ◽  
Direct Reading ◽  
Linear Array Ccd

The linear array CCD spectral acquisition system for a Photoelectric Direct Reading Spectrometer is presented. The spectral acquisition circuit, data processing and shortage circuit are designed. Taking microcontroller MSP430 as a control chip, Using PWM signals generated by MSP430 timer, the correct timing of CCD clock pulse, ADC clock and FIFO write enable signal was established. The experiment shows that the synchronization of spectral acquisition, data conversion and shortage was achieved, and the spectral acquisition system is feasible and reliability.

A device for automatic data acquisition, processing, and storage in cardiointervalography

1995 ◽  
Vol 29 (5) ◽  
pp. 232-234
Author(s):  
A. V. Grekhnev ◽  
E. A. Konichenko ◽  
L. D. Makeeva ◽  
L. V. Nikitina
Keyword(s):  
Data Acquisition ◽  
Automatic Data ◽  
Processing And Storage ◽  
And Storage ◽  
Automatic Data Acquisition

scholarly journals Generation and Analysis of Ultrasound Images Using Plane Wave and Sparse Arrays Techniques

Sensors ◽  
2018 ◽  
Vol 18 (11) ◽  
pp. 3660 ◽  
Author(s):  
Nivaldo Schiefler ◽  
Joaquim Maia ◽  
Fabio Schneider ◽  
Acácio Zimbico ◽  
Amauri Assef ◽  
...  
Keyword(s):  
Plane Wave ◽  
Ultrasound Imaging ◽  
Linear Array ◽  
Imaging Technique ◽  
Simulated Data ◽  
Ultrasound Images ◽  
Sparse Arrays ◽  
Array Transducer ◽  
Processing And Storage ◽  
And Storage

Ultrasonic imaging is one of the most important techniques to help medical diagnosis. However, obtaining high quality images requires the acquisition, processing, and storage of a large amount of data. In this work, we evaluated a new ultrasound imaging technique based on plane wave and sparse arrays to increase the scan rate and reduce the amount of data amount to be stored. The performance of the proposed method was tested using simulated echo data (from Field II) and phantom data acquired using a Verasonics system equipped with a L11-4v linear array transducer. The tests were done using 128 elements for transmission and 128, 65, 44, and 23 elements sparsely distributed for reception. The simulated data were compared with images obtained with the Delay and Sum (DAS) method and the experimental data were compared with those acquired from Verasonics. The obtained results using the Full Width at Half Maximum (FWHM) criteria at −6 dB showed that the images generated by the proposed method were similar in terms of resolutions (axial and lateral) and contrast to the simulated and the Verasonics commercial ones, indicating that the sparse reception proposed method is suitable for ultrasound imaging.

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