کنفرانس مهندسی برق ایران

صفحه اصلی / سی و یکمین کنفرانس بین المللی مهندسی برق

Implementation of a 14-Channel Real-time Compact Data Logger for Structure and Mechanical Engineering Laboratories

نویسندگان :

Keivan Sadeghinezhad¹ Esmaeil Najafiaghdam² Sara Dezhakam³ Ali Sadeghinezhad⁴

1- Sahand University of Technology 2- Sahand University of Technology 3- Sahand University of Technology 4- University of Tabriz

کلمات کلیدی :

Data Logger،DAQ،Data Acquisition،ADC،Analog To Digital Converter،Structure Engineering Laboratory،Mechanical Engineering Laboratory،LVDT،Strain Gauge،Load Cell

چکیده :

This research is based on the need to measure signals from different sensors used in Structure and Mechanical engineering laboratories in real-time mode; therefore, a 14-channel data logger is proposed and implemented on a single board and common platform. It is seen as a very compact device for data acquisition, data analysis, and graphing of results. The data logger is developed using an STM32F407VGT6 microcontroller and different drivers or front-end parts for various types of sensors. The system can collect real-time data, which are stored on a microSD memory card, and then be transferred to a PC via the USB connection. In addition, the device contains a keypad and a 7-segment displayer to add the offline mode capability when there is no server or PC available. The data logger has been successfully implemented to monitor: four channels of 24-bit ADC for the linear variable differential transformer (LVDT), two channels of 24-bit ADC for the load cell, four channels of 12-bit ADC for the strain gauge, two channels of 16-bit accelerometer, two channels of 12-bit temperature sensors, and two channels of 16-bit to convert input voltages up to 3MSPS.

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