scholarly journals Optical signal acquisition and processing in future accelerator diagnostics

1992 ◽  
Author(s):  
Gerald P. Jackson ◽  
Alizon Elliott
Keyword(s):  
Optical Signal ◽  
Signal Acquisition ◽  
Signal Acquisition And Processing

scholarly journals Development of an Optical Signal-Based IPS from an MCU-SoC

Electronics ◽  
2020 ◽  
Vol 9 (5) ◽  
pp. 782 ◽  
Author(s):  
Borja Rubiano-Muriel ◽  
José Luis Lázaro-Galilea ◽  
Alfredo Gardel-Vicente ◽  
Álvaro De-La-Llana-Calvo ◽  
Ignacio Bravo-Muñoz
Keyword(s):  
Digital Filtering ◽  
Optical Signal ◽  
Point Of View ◽  
Signal Acquisition ◽  
Spectral Processing ◽  
On Chip ◽  
Multi Access ◽  
Signal Acquisition And Processing ◽  
Microcontroller Unit ◽  
Access Discrimination

In this work, we have studied the integration of an optical signal-based Indoor Positioning System (IPS) capable of supporting multi-access discrimination techniques. The research analyzes the different techniques and conditions that can be used to develop an IPS using a microcontroller unit (MCU)-based system-on-chip (SoC) systems. The main goal is to be able to integrate into the MCU both the hardware and software requirements for an IPS detector. In this way, different strategies that can implement multi-access discrimination using Frequency-division multiple access (FDMA) have been tested, such as I/Q demodulation, digital filtering, and discrete Fourier transform (DFT). This analysis has found a good technique to be executed in an MCU-based SoC, the DFT implemented through the Goertzel’s algorithm. The empirical tests carried out concluded that, using only one an MCU with the required HW and tuned SW, 15 position measurements per second were computed, with high accuracy in the 3-D positioning, with errors of less than 1 cm in a test area of 3.5 × 3.5 m 2 . The main contribution of the paper is the implementation of the optical signal based IPS in an MCU-SoC that includes signal acquisition and processing. The digital filtering or spectral processing for up to 16 received signals makes this IPS system very attractive from a design and cost point of view.

scholarly journals Using a Planar Array of MEMS Microphones to Obtain Acoustic Images of a Fan Matrix

2017 ◽  
Vol 2017 ◽  
pp. 1-10 ◽  
Author(s):  
Lara del Val ◽  
Alberto Izquierdo ◽  
Juan José Villacorta ◽  
Luis Suárez
Keyword(s):  
Microelectromechanical Systems ◽  
Processing System ◽  
Signal Acquisition ◽  
Acoustic Images ◽  
Mems Microphone ◽  
The Matrix ◽  
Planar Array ◽  
Mems Microphones ◽  
The Individual ◽  
Signal Acquisition And Processing

This paper proposes the use of a signal acquisition and processing system based on an8×8planar array of MEMS (Microelectromechanical Systems) microphones to obtain acoustic images of a fan matrix. A3×3matrix of PC fans has been implemented to perform the study. Some tests to obtain the acoustic images of the individual fans and of the whole matrix have been defined and have been carried out inside an anechoic chamber. The nonstationary signals received by each MEMS microphone and their corresponding spectra have been analyzed, as well as the corresponding acoustic images. The analysis of the acoustic signals spectra reveals the resonance frequency of the individual fans. The obtained results reveal the feasibility of the proposed system to obtained acoustic images of a fan matrix and of its individual fans, in this last case, in order to estimate the real position of the fan inside the matrix.

Design of a Double CPU and Distributed Coal Mine Fault Oscillograph

2013 ◽  
Vol 868 ◽  
pp. 306-309
Author(s):  
Wen Yan Nie ◽  
Zhong En Wang
Keyword(s):  
Data Storage ◽  
Coal Mine ◽  
High Performance ◽  
Stable Operation ◽  
Signal Acquisition ◽  
Test Results ◽  
Communication Capacity ◽  
Communication Function ◽  
Data Acquisition Unit ◽  
Signal Acquisition And Processing

Traditional microcomputer fault oscillograph cannot meet the requirements of coal mine substation to digital and networked. A double CPU and distributed coal mine fault oscillograph is presented, the device data acquisition unit of new fault oscillograph use high performance DSP chip TMS320LF2812 to complete signal acquisition and processing, and S3C2410 chip is used in data management unit to complete the data storage, display and communication function. Test results show that the new fault oscillograph could separately installed in each substation and has stable operation and high communication capacity advantages.

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