A multi-client web platform for telemetry of the mechanical properties of material

IF 2.1 Q3 ENGINEERING, ELECTRICAL & ELECTRONIC

HardwareX Pub Date : 2026-03-01 Epub Date: 2026-01-10 DOI:10.1016/j.ohx.2026.e00741

Oleg Ivanov, Volodymyr Shulgin, Nataliia Popovych, Liudmyla Bondar

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引用次数: 0

Abstract

This paper presents a multi-client web platform for telemetry of mechanical property testing, built around an existing tensile testing machine as an approach to its modernization. Extension and force measurements are performed using potentiometers with analog outputs connected to a 24-bit analog-to-digital converter (ADS1256) integrated with a Raspberry Pi 5 microcomputer. The communication module enables data acquisition and timing, the organization of a wireless Wi-Fi network, the operation of web and DNS servers, and full-duplex information exchange via the WebSocket protocol.

A specially developed web application with a graphical user interface allows researchers to observe the “force–extension” curve and numerical values in real time on personal digital devices without installing specialized software. The platform supports simultaneous multi-client access, which increases the accessibility and convenience of experimental research.

Validation experiments on reinforcing steel confirmed stable platform performance at a data acquisition frequency of 15 Hz with up to 15 simultaneous client connections. The measurement accuracy was within ± 1 % for both force and extension, meeting ISO 6892–1 requirements. The proposed solution provides an affordable and flexible tool for scientific and educational purposes, enhancing the informativeness and accuracy of experimental tests while offering a practical pathway for upgrading conventional tensile testing machines.

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一个用于材料力学性能遥测的多客户端网络平台

本文提出了一个多客户端遥测力学性能测试的网络平台，建立在现有的拉伸试验机作为其现代化的一种方法。扩展和力测量使用电位器进行，模拟输出连接到与Raspberry Pi 5微型计算机集成的24位模数转换器（ADS1256）。通信模块实现数据采集和定时、无线Wi-Fi网络的组织、web和DNS服务器的操作以及通过WebSocket协议进行全双工信息交换。一个专门开发的带有图形用户界面的web应用程序允许研究人员在个人数字设备上实时观察“力扩展”曲线和数值，而无需安装专门的软件。该平台支持多客户端同时访问，增加了实验研究的可及性和便利性。在钢筋上进行的验证实验证实，在数据采集频率为15 Hz、最多可同时连接15个客户端的情况下，平台性能稳定。力和伸度测量精度均在±1%以内，满足ISO 6892-1要求。提出的解决方案为科学和教育目的提供了一种负担得起的灵活工具，增强了实验测试的信息量和准确性，同时为传统拉伸试验机的升级提供了一条实用的途径。

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来源期刊

HardwareX Engineering-Industrial and Manufacturing Engineering

CiteScore

4.10

自引率

18.20%

发文量

124

审稿时长

24 weeks

期刊介绍： HardwareX is an open access journal established to promote free and open source designing, building and customizing of scientific infrastructure (hardware). HardwareX aims to recognize researchers for the time and effort in developing scientific infrastructure while providing end-users with sufficient information to replicate and validate the advances presented. HardwareX is open to input from all scientific, technological and medical disciplines. Scientific infrastructure will be interpreted in the broadest sense. Including hardware modifications to existing infrastructure, sensors and tools that perform measurements and other functions outside of the traditional lab setting (such as wearables, air/water quality sensors, and low cost alternatives to existing tools), and the creation of wholly new tools for either standard or novel laboratory tasks. Authors are encouraged to submit hardware developments that address all aspects of science, not only the final measurement, for example, enhancements in sample preparation and handling, user safety, and quality control. The use of distributed digital manufacturing strategies (e.g. 3-D printing) is encouraged. All designs must be submitted under an open hardware license.