Based ARMK10 Electromagnetic Sensor A/D Converter Design and Implementation

2014 ◽  
Vol 687-691 ◽  
pp. 3399-3402
Author(s):  
Chun Guang Bi ◽  
Wei Tian Kong ◽  
Ye Ming Lu
Keyword(s):  
Digital Signal ◽  
Alternating Current ◽  
Analog Signal ◽  
Electromagnetic Sensors ◽  
Continuous Analog ◽  
Design And Implementation ◽  
Signal Amplifier ◽  
Current Conductor ◽  
Electromagnetic Sensor ◽  
Converter Design

This paper-based design Kinetics ARM-Cortex M4 MK10DN512ZLL10 microprocessor detecting through the use of electromagnetic sensors has 10mH 100mA alternating current conductor, a continuous analog signal obtained through the solenoid to the LM358 chip amplifier many times the signal amplifier circuit , and then the analog signal is converted by the algorithm into a digital signal, and these values ​​can be obtained through a filtering process after a smooth and accurate digital microprocessor for processing.

scholarly journals ALAT UKUR TDS (TOTAL DISSOLVED SOLID) AIR GARAM DENGAN RESISTIF SEBAGAI INDIKATOR

2016 ◽  
Vol 19 (1) ◽  
pp. 9
Author(s):  
Aloisius Wisnu Lalita Dewa ◽  
Priyo Sasmoko
Keyword(s):  
Water Quality ◽  
Salt Water ◽  
Digital Signal ◽  
Alternating Current ◽  
Total Dissolved Solids ◽  
Analog Signal ◽  
Dissolved Solids ◽  
Factory Production ◽  
Total Dissolved Solid ◽  
Reading Distance

Aloisius Wisnu Lalita Dewa, Priyo Sasmoko  in this paper explain that, physical water quality can be identified in various ways, one of which is measuring the amount of solute called Total Dissolved Solid (TDS). This study aims to design and make a TDS solution by using two electrodes as sensors. These two electrodes flow alternating current and negative values alternately into water. Analog signal in the form of voltage is read by the microcontroller by converting it into a digital signal, then the microcontroller processes the data and displays the TDS value. Tests are carried out by measuring the same solution using TDS meters and salt water TDS. Testing starts from a solution of 175 ppm to 8500 ppm. Making solutions based on TDS meter factory production. The results of salt water TDS measurements showed that the measured tds values increased from 173 ppm to 8007 ppm. Error reading at 8500 ppm, this is because the reading distance of salt water TDS is only up to 8260 ppm. Keywords : TDS, conductivity, electroda, measurement device.ReferencesMalvino. 1995. Prinsip-prinsip Elektronkai. Jakarta : Erlangga.Rusmadi, Dedy. 2001. Mengenal Komponen Elektronika. Bandung : Pionir JayaSumariyah, Yulianto. T, Priyono J, 2006. Rancang Bangun Sistem Pengukur Konduktivitas Larutan Elektrolit Menggunakan Mikrokontoler AT89C51. Program Studi Fisika Fakultas MIPA Universitas Diponegoro. Semarang.Utomo, D. 2012. Alat pengukur resistansi konduktivitas. dan Total dissolved solids air dengan Teknik dorong-tarik. Program Studi Sistem Komputer. Fakultas Teknik Elektronika dan Komputer. Universitas Kristen Satya Wacana. Salatiga.Wiono.A,Rahmawati. E, 2014.  Perancangan Dan Pembuatan Alat Ukur Konduktivitas Larutan Berbasis Mikrokontroler. Program Studi Fisika Fakultas MIPA Universitas Negeri Surabaya. Surabaya

Design of New Frequency Converter Based on TMS320LF2407A

2012 ◽  
Vol 466-467 ◽  
pp. 809-813
Author(s):  
Zhan Jun Yuan ◽  
Jin Wang
Keyword(s):  
Digital Signal Processor ◽  
Pulse Width Modulation ◽  
Frequency Converter ◽  
Dynamic Performance ◽  
Digital Signal ◽  
Control Precision ◽  
Software And Hardware ◽  
Converter Design ◽  
Utilization Ratio ◽  
High Control

In order to improve voltage utilization ratio and dynamic performance of frequency converter, this paper presents a digital frequency converter design scheme based on digital signal processor TMS320LF2407A and the theory of space vector pulse width modulation (SVPWM) technology, provides its detailed design measures of software and hardware and SVPWM algorithm realization methods. The experimental results prove that this new frequency converter has simple structure, high control precision, higher voltage utilization ratio, better dynamic and static property.

scholarly journals Polymer Optical Fiber-Based Respiratory Sensors: Various Designs and Implementations

2019 ◽  
Vol 2019 ◽  
pp. 1-6
Author(s):  
A. Arifin ◽  
Nelly Agustina ◽  
Syamsir Dewang ◽  
Irfan Idris ◽  
Dahlang Tahir
Keyword(s):  
Optical Fiber ◽  
Measurement System ◽  
Output Voltage ◽  
Low Cost ◽  
Optical Fiber Sensor ◽  
Digital Signal ◽  
Analog Signal ◽  
Fiber Sensor ◽  
Polymer Optical Fiber ◽  
Arduino Uno

This research discusses the polymer optical fiber sensor for respiratory measurements. The infrared LED that produces light will propagate along the polymer optical fiber which will be received by the phototransistor and the differential amplifier. The output voltage in the form of an analog signal will be converted to a digital signal by the Arduino Uno microcontroller and displayed on the computer. The polymer optical fiber sensor is installed on the corset using a variety of configuration (straight, sinusoidal, and spiral), placed in the abdomen, and a variety of positions (abdomen, chest, and back) using only a spiral configuration. While doing the inspiration, the stomach will be enlarged so that the optical fiber sensor will have strain. The strain will cause loss of power, the resulting light intensities received by the phototransistor are reduced, and the output voltage on the computer decreases. The result shows that the highest voltage amplitudes were in the spiral configuration placed in the abdominal position for slow respiration measurements with the highest range, sensitivity, and resolution which are 0.119 V, 0.238 V/s, and 0.004 s, respectively. The advantages of our work are emphasized on measurement system simplicity, low cost, easy fabrication, and handy operation and can be connected with the Arduino Uno microcontroller and computer.

Water Content Estimation in Soils Using Novel Planar Electromagnetic Sensor Arrays

2013 ◽  
Vol 64 (5) ◽  
Author(s):  
Mohd Amri Md Yunus ◽  
Syahrul Hisyam Mohamad ◽  
Alif Syarafi M. Nor ◽  
Muhammad Hafis Izran ◽  
Sallehuddin Ibrahim
Keyword(s):  
Water Content ◽  
Sensor Array ◽  
Printed Circuit Board ◽  
Agricultural Soils ◽  
Sensor Arrays ◽  
Circuit Board ◽  
Waveform Generator ◽  
Electromagnetic Sensors ◽  
Electromagnetic Sensor ◽  
The Relationship

Agriculture is one of the important sectors for food supplies. Therefore, a tool for monitoring the agro-environment is important in order to maintain the permanence of agricultural soils. This paper suggests an alternative method for the detection of water content in soils by developing a sensor array with a combination of planar meander and interdigital electromagnetic sensors. The study involved sensor array fabrication using the printed circuit board (PCB) method. The experimental setup consisted of a frequency waveform generator and a signal oscilloscope to collect and analyse the sensors’ output, with VEE Agilent software used to establish the interface. A set of experiments was conducted to determine the relationship between the sensors’ output and the soils’ parameters. The performance of the system was observed where the sensors were tested with the addition of various kinds of soil samples with different concentrations of water content. The sensitivity of the developed sensors was evaluated where the best sensor was selected. Based on the outcomes of the experiments, the Y sensor array placement has the highest sensitivity and can be used to measure the water content in the soils where the data accuracy is compared

scholarly journals Design of an Isolated Bidirectional Symmetric Resonant Converter

2020 ◽  
Vol 10 (22) ◽  
pp. 8144
Author(s):  
Yih-Her Yan ◽  
Hung-Liang Cheng ◽  
Shun-Yu Chan ◽  
Yu-Da Chen ◽  
Yong-Nong Chang
Keyword(s):  
Conversion Efficiency ◽  
Digital Signal Processor ◽  
Power Conversion ◽  
Digital Signal ◽  
Resonant Converter ◽  
Capacity Design ◽  
Dual Active Bridge ◽  
Reverse Conversion ◽  
Converter Design ◽  
Resonant Mechanism

An isolated type bidirectional resonant converter is presented in this paper. Using a dual active bridge as the main topology and integrating symmetric resonant mechanism, the developed converter features an isolated type bidirectional resonant converter with bidirectional power conversion and electrical isolation capabilities to ensure working security and stability. The application of a symmetric resonant scheme enables the control range of input and output voltages to be widened and achieves soft switching during bidirectional power conversion. A converter design process covering all the bases is exhibited in this work. With the digital signal processor (DSP) TMS320F28335 being employed as the control core, the developed isolated bidirectional resonant converter can effectively handle the power conversion between the simulated 400 V DC grid and the energy storage battery ranging from 280 to 403 V. Based on a 1 kW capacity design, the test data reveal that the forward conversion efficiency from grid to battery can reach 93.25%, and the reverse conversion efficiency from battery to grid is as high as 94.60%.

scholarly journals Design of the Control System for Rehabilitation Horse Based on MCU STC89C52

2011 ◽  
Vol 2-3 ◽  
pp. 234-238
Author(s):  
Hai Tao Qi ◽  
Guang Lei Feng ◽  
Hong Wang
Keyword(s):  
Control System ◽  
Real Time ◽  
Digital Signal ◽  
Human Machine Interface ◽  
Analog Signal ◽  
The Real ◽  
User Input ◽  
Speed Controller ◽  
Machine Interface ◽  
Signal Output

It introduces a design of the control system for rehabilitation horse based on MCU STC89C52. The system’s control core is an 8-bit MCU STC89C52. First, the user input commands through the keyboard, then send commands to the DA conversion chip PCF8591 which can achieve the digital signal to analog signal output after dealing with MCU. Finally, PCF8591 send analog signal to the speed controller of DC motor in order to control the DC motor’s speed. Meanwhile, it builds a human-machine interface (HMI) to display the real-time speed of the horse through LCD.

Application of Wavelet Analysis in Nondestructive Testing of Steel and Iron Materials and DSP Implementation

2013 ◽  
Vol 321-324 ◽  
pp. 1270-1273
Author(s):  
Pei Yue Liu ◽  
Jun Fen Wang ◽  
Bao Qiu Ma
Keyword(s):  
Signal Processing ◽  
Nondestructive Testing ◽  
Wavelet Analysis ◽  
Digital Signal Processing ◽  
Digital Signal ◽  
Analog Signal ◽  
Testing Device ◽  
Dsp Implementation ◽  
Testing Signal ◽  
Wavelet Algorithm

Aiming at improving the unideal testing result by means of analog signal processing, wavelet analysis is introduced in the nondestructive testing of steel and iron materials, based on the characteristics of electromagnetic nondestructive testing signal. According to the requirement of wavelet algorithm for hardware, the advantages of DSP, digital signal processing function and high calculating speed, design scheme of the steel electromagnetic nondestructive testing device is proposed in this paper. Experiments show that this method can extract detection signal effectively.

Design and Implementation of Bipolar Digital Signal Acquisition and Processing System Based on FPGA and ACPL-224

2011 ◽  
Vol 3 (4) ◽  
pp. 1-5
Author(s):  
Guangfu Lin ◽  
Zhenxing Yin ◽  
Guo Feng
Keyword(s):  
Design Method ◽  
Processing System ◽  
Digital Signal ◽  
External Factors ◽  
External Signal ◽  
Signal Acquisition ◽  
Interface Circuit ◽  
Design And Implementation ◽  
System Requirements ◽  
Signal Acquisition And Processing

This paper proposes new approaches for designing a bipolar DS acquisition system to reduce the harm of external factors on equipment, as well as fulfill system requirements at the veracity and reliability of the equipment to quickly connect. The design method chosen is ACPL-224 for chip of the interface about data acquisition on the FPGA device, including system principle, interface circuit logic, the method of data processing, and so forth. Now that this method has been applied, it has achieved good results, including extending the system’s adaptive range of external signal and enhancing the efficiency of the interface to quickly connect.

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