The Data Acquisition of High Speed A/D Conversion Based on STC12C5A32S2 SCM

2012 ◽  
Vol 182-183 ◽  
pp. 670-675
Author(s):  
Cheng Ying Wu ◽  
Zhan You Fan ◽  
Hong Jiao Ma ◽  
Zai Min He ◽  
Zhao Ming Wang
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Low Cost ◽  
High Accuracy ◽  
Single Chip ◽  
Digital Signals ◽  
Single Chip Microcomputer ◽  
Display Module ◽  
Analog Signals ◽  
Lcd Display

In order to achieve high-accuracy, high speed and low cost A/D conversion, a new design based on STC12C5A32S2 single-chip microcomputer (SCM) is given. Compared with the previous A/D conversion, the biggest advantage is that the paper combine software with hardware and it can adjust the speed of transformation through procedure.We don't need to modify circuit, just need to modify signals of input and procedures. So the flexibility of A/D conversion can be enhanced, also saved costs. The design mainly makes use of new function of STC12C5A32S2 SCM to realize conversion between analog signals and digital signals. In order that researchers can analyze and use the convention results, the design add a LCD display module. The paper primarily analyses the design of circuit and interface technology between the SCM and other chips. Also, the peculiar function of STC, the LCD display method of LMB202DDC and the flow of software are expounded in detail. The simulation result based on Proteus is given by the end of paper.

Design of Data Acquisition and LED Display System

2012 ◽  
Vol 468-471 ◽  
pp. 863-866
Author(s):  
Hai Feng Zhou ◽  
Jing De Dong ◽  
Yuan Qing Huang
Keyword(s):  
Data Acquisition ◽  
Display System ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Display Module ◽  
Communication Module ◽  
Set Up ◽  
Led Display System ◽  
Data Acquisition Module ◽  
Hardware Circuit

This paper set up a data acquisition system by AT89C52 single chip microcomputer as control core, using the RS-232 serial manner communicated with responsibled for data acquisition of microprocessor, and used LED to display. System can be divided into data acquisition module, serial communication module, control module, keyboard module, display module, etc. System of multi-channel data acquisition can be displayed in the LED after processed. The hardware circuit and software realized design functions :data acquisition and LED display.

Development of a Control System of Testing Machine for Rock Breaking Based on Single-Chip Microcomputer

2014 ◽  
Vol 1082 ◽  
pp. 495-500
Author(s):  
Meng Yi Zhang ◽  
Yi Zhang
Keyword(s):  
Control System ◽  
Pressure Sensor ◽  
Testing Machine ◽  
Rock Breaking ◽  
Displacement Sensor ◽  
Torque Sensor ◽  
Single Chip ◽  
Digital Signals ◽  
Single Chip Microcomputer ◽  
Analog Signals

A control system of testing machine for rock breaking is developed based on Atmega 16 single-chip microcomputer, which acquires analog signals by a pressure sensor, a displacement sensor and a torque sensor. The system converts the signals into digital signals by means of A/D conversion and data processing, and displays them on the LCD screen. The parameters on the testing machine, such as pressures, displacements and torques, can be achieved in real time in the system. Then they are analyzed to obtain rock breaking characteristics. It is shown by experiment that the system meets the control requirements of the testing machine for rock breaking.

Data Acquisition of BZD Low Burst and Intelligent Protection in the Mine

2012 ◽  
Vol 529 ◽  
pp. 331-334
Author(s):  
Chun Guang Li ◽  
Jun Mei Geng
Keyword(s):  
Data Acquisition ◽  
High Speed ◽  
Low Cost ◽  
Multiple Frequency ◽  
Single Chip ◽  
Frequency Signal ◽  
High Speed Data Acquisition ◽  
High Speed Data ◽  
The Common ◽  
Rapid Processing

To describe the Underground low-pressure explosion-proof switch which has to require rapid processing of multiple frequency signal, the paper analyzes the specific signal and the common algorithms, according to the characteristics of the explosion-proof switch protection device to provide the high-precision, low-cost and high-speed data acquisition methods based on the single chip controller, which is also applied the BZD low burst intelligent protection.

Research on Digital Phase Difference Measuring Instrument

2013 ◽  
Vol 329 ◽  
pp. 368-372
Author(s):  
Wei Hua Wu
Keyword(s):  
Relative Error ◽  
Phase Difference ◽  
Absolute Error ◽  
Phase Shifting ◽  
Measuring Instrument ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Display Module ◽  
Digital Phase ◽  
Lcd Display

The paper presents the digital phase measuring instrument based on MSP430 single-chip microcomputer. The instrument adopted the technology of DDS to generate sinusoidal signal, and FPGA to achieve phase difference measurement and polarity judgment. The system is composed of a filtering circuit, a phase shifting network, a shaping circuit, matrix keyboard, LCD display module and the frequency is in the range from 200Hz to 10kHz, the phase difference is in the range of-180°~+180 °, the resolution ratio is 0.1°, the absolute error is less than ±2 °, and the relative error is less than ± 3%.

Based on the Design of the Single Chip Microcomputer Numerical Control Constant Current Source

2014 ◽  
Vol 926-930 ◽  
pp. 1226-1229
Author(s):  
Zhi Jian Yin ◽  
Qiang Luo ◽  
Kun Xiang ◽  
Fan Wang
Keyword(s):  
Current Source ◽  
Current Control ◽  
Numerical Control ◽  
Constant Current ◽  
Single Chip ◽  
Output Current ◽  
Single Chip Microcomputer ◽  
Constant Current Source ◽  
Display Module ◽  
Lcd Display

This system based on single-chip microcomputer control, with buttons and LCD monitor as the man-machine interface of numerical control dc power supply. System is mainly composed of rectification filter circuit, the output current control module, LCD display module current and voltage controlled constant current module. Button to SCM number controls the size of the output current DAC0832, LCD display the current value. This system controlled by single chip microcomputer DA output, make the whole circuit system has a stable output current, step precision is high, easy to control, etc.

scholarly journals Design and Development of a 5-Channel Arduino-Based Data Acquisition System (ABDAS) for Experimental Aerodynamics Research

Sensors ◽  
2018 ◽  
Vol 18 (7) ◽  
pp. 2382 ◽  
Author(s):  
Antonio Vidal-Pardo ◽  
Santiago Pindado
Keyword(s):  
Data Acquisition ◽  
Low Cost ◽  
Data Acquisition System ◽  
High Accuracy ◽  
Acquisition System ◽  
Calibration System ◽  
Experimental Aerodynamics ◽  
Accuracy Level ◽  
The Fourier Transform ◽  
Cup Anemometer

In this work, a new and low-cost Arduino-Based Data Acquisition System (ABDAS) for use in an aerodynamics lab is developed. Its design is simple and reliable. The accuracy of the system has been checked by being directly compared with a commercial and high accuracy level hardware from National Instruments. Furthermore, ABDAS has been compared to the accredited calibration system in the IDR/UPM Institute, its measurements during this testing campaign being used to analyzed two different cup anemometer frequency determination procedures: counting pulses and the Fourier transform. The results indicate a more accurate transfer function of the cup anemometers when counting pulses procedure is used.

scholarly journals The Acquisition Rate and Soundness of a Low-Cost Data Acquisition System (LC-DAQ) for High Frequency Applications

Sensors ◽  
2020 ◽  
Vol 20 (2) ◽  
pp. 524 ◽  
Author(s):  
Ciro Moreno ◽  
Alejandro González ◽  
José Luis Olazagoitia ◽  
Jordi Vinolas
Keyword(s):  
Data Acquisition ◽  
High Frequency ◽  
High Speed ◽  
Low Cost ◽  
Data Retrieval ◽  
Cost Data ◽  
High Rate ◽  
Acquisition Rate ◽  
Open Platform ◽  
Speed Up

This article presents a novel and reliable low-cost data acquisition solution for high frequency and real-time applications in vehicular dynamics. Data acquisition systems for highly dynamic systems based on low-cost platforms face different challenges such as a constrained data retrieval rate. Basic data reading functions in these platforms are inefficient and, when used, they limit electronics acquisition rate capabilities. This paper explains a new low-cost, modular and open platform to read different types of sensors at high speed rates. Conventional reading functions are avoided to speed up acquisition rate, but this negatively affects data reliability of the system. To solve this and exploit higher data managing rates, a number of custom secure layers are implemented to secure a reliable acquisition. This paper describes the new low-cost electronics developed for high rate acquisition applications and inspects its performance and robustness against the introduction of an increasing number of sensors connected to the board. In most cases, acquisition rates of the system are duplicated using this new solution.

Study on the Temperature and Speed Test System

2012 ◽  
Vol 590 ◽  
pp. 333-336
Author(s):  
Qian Zhao ◽  
Shan Zhen Xu ◽  
Qi Chen ◽  
Cheng Wang
Keyword(s):  
Signal Processing ◽  
Data Acquisition ◽  
Data Acquisition System ◽  
Test System ◽  
Acquisition System ◽  
Motor Speed ◽  
Single Chip ◽  
Single Chip Microcomputer ◽  
Signal Processing Circuit ◽  
Processing Circuit

A kind of multiple parameter data acquisition system was designed based on single-chip microcomputer which can realized the data acquisition of temperature and DC motor speed. The data acquisition system consists of sensor, signal processing circuit, single-chip microcomputer and LED digital tube. The speed signal is acquired by photoelectric sensor, put into the Single-chip microcomputer processed after processed by signal processing circuit, and displayed the value in the digital tubes. The temperature signal is acquired by digital sensor, and the Single-chip microcomputer can read the data directly. Through two independent keyboards, the test system realized the data acquisition and data switch displaying of the multiple parameters.

A Method of High Accuracy Control for Motor-Based Photoelectric Tracking Instrumentation Base on Inclinometer

2013 ◽  
Vol 423-426 ◽  
pp. 2846-2850
Author(s):  
Da Yong Ning ◽  
Chang Le Sun ◽  
Yong Jun Gong
Keyword(s):  
System Change ◽  
Vertical Axis ◽  
High Accuracy ◽  
Horizontal Axis ◽  
Cad Model ◽  
Accuracy Control ◽  
Digital Signals ◽  
Controlled System ◽  
Technology Analysis ◽  
Analog Signals

A mathematic method of ensuring motor-based photoelectric tracking instrumentation work high accurately was introduced, the SCA100T inclinometer was settled under the base, and examine plane of base real-timely. The inclinometer output analog signals and transmit it to AT89C51 through A/D converters, and AT89C51 output digital signals and transmit it to PC through RS-232. The PC convert signals of inclinometer into angle values of horizontal axis and vertical axis and transmit the values to main controlled system of photoelectric tracking instrumentation, the controlled system change the angles of horizontal axis and vertical axis. The CAD model was built and simulated with virtual prototype technology .Analysis and simulation proved that the mathematic method could keep tracking precision of motor-based photoelectric tracking instrumentation.

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