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基于PLC的pH值自动测试设备控制系统设计.

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Title: 基于PLC的pH值自动测试设备控制系统设计. (Chinese)
Alternate Title: Design of Control System of pH Automatic Test Equipment Based on PLC. (English)
Authors: 丁明利, 陈勇达, 邓成亮, 刘 霞, 杨友红, 王新华
Source: Mechanical & Electrical Engineering Technology; Apr2026, Vol. 55 Issue 8, p123-128, 6p
Abstract (English): Traditional pH detection methods require manual sample injection, manual placement in an oscillation device for extraction, manual pH measurement, manual data entry, and computer storage. To address the issues of low detection efficiency and high labor intensity associated with traditional pH value testing methods, a control system for automatic pH testing equipment is researched based on PLC programming technology. The system utilizes the Mitsubishi FX5U series PLC as the main controller, incorporates photoelectric sensors for signal acquisition, and employs analog control systems along with servo motor control systems. Furthermore, the system uses computer software integrated with industrial Ethernet Socket communication functionality via TCP protocols to achieve automatic control of the equipment. The device is configured with three liquid injection ports and three testing electrodes, allowing for simultaneous liquid injection and testing of three sample bottles, thus fulfilling the requirements for automatic liquid injection, automatic oscillation, and automatic testing. The sample testing results are automatically saved on the computer. To date, approximately 15 units of this equipment have been produced, and feedback from several testing institutions indicates that the device operates stably and provides accurate and reliable testing results, with a liquid injection precision of ±1.00 mL, an oscillation precision of ±1 pc/min, and a testing precision of ±0.10 relative to standard values. Compared to manual testing, this system can enhance work efficiency by 300%, significantly improving testing efficiency and reducing labor costs, thereby providing an effective solution for the automation and intelligent design of laboratory testing equipment control systems, and validating the correctness of PLC programming technology in the application of automated testing equipment. [ABSTRACT FROM AUTHOR]
Abstract (Chinese): 传统 pH 值检测方法, 需要人工对样品进行注液、放入振荡设备中振荡萃取、检测 pH 值、录入测试数据、电脑保存等步骤。 针对传统 pH 值检测方法人工检测效率低、劳动强度高等问题, 基于 PLC 编程技术设计了 pH 值自动测试设备控制系统, 提出了以 三菱 FX5U 系列 PLC 作为主控制器, 通过光电传感器完成信号采集, 运用模拟量控制系统及伺服电机控制系统, 并通过电脑软件结 合工业以太网 Socket 通信功能的 TCP 协议收发数据, 来达到用电脑软件自动控制设备的目的。设备共配置 3 个加液口和 3 支测试电 极, 可同时完成 3 个样品瓶的加液及测试, 实现设备自动注液、自动振荡、自动测试的需求, 样品测试结果自动保存在电脑中。 该设备目前已生产约 15 台, 经多家检测机构实际使用反馈其运行稳定、测试结果准确可靠, 加液精度为设定值±1.00 mL, 振荡精 度为设定值±1 pc/min, 测试精度为标准值±0.10。测试效率相比人工检测可提升 300%, 且降低了人工成本, 为实验室测试设备控 制系统自动化及智能化设计提供了有效解决方案, 验证了 PLC 编程技术在自动化检测设备应用的正确性。 [ABSTRACT FROM AUTHOR]
Copyright of Mechanical & Electrical Engineering Technology is the property of Mechanical & Electrical Engineering Technology Editorial Office and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
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  Data: 基于PLC的pH值自动测试设备控制系统设计. (Chinese)
– Name: TitleAlt
  Label: Alternate Title
  Group: TiAlt
  Data: Design of Control System of pH Automatic Test Equipment Based on PLC. (English)
– Name: Author
  Label: Authors
  Group: Au
  Data: <searchLink fieldCode="AR" term="%22丁明利%22">丁明利</searchLink><br /><searchLink fieldCode="AR" term="%22陈勇达%22">陈勇达</searchLink><br /><searchLink fieldCode="AR" term="%22邓成亮%22">邓成亮</searchLink><br /><searchLink fieldCode="AR" term="%22刘+霞%22">刘 霞</searchLink><br /><searchLink fieldCode="AR" term="%22杨友红%22">杨友红</searchLink><br /><searchLink fieldCode="AR" term="%22王新华%22">王新华</searchLink>
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  Data: Mechanical & Electrical Engineering Technology; Apr2026, Vol. 55 Issue 8, p123-128, 6p
– Name: AbstractNonEng
  Label: Abstract (English)
  Group: Ab
  Data: Traditional pH detection methods require manual sample injection, manual placement in an oscillation device for extraction, manual pH measurement, manual data entry, and computer storage. To address the issues of low detection efficiency and high labor intensity associated with traditional pH value testing methods, a control system for automatic pH testing equipment is researched based on PLC programming technology. The system utilizes the Mitsubishi FX5U series PLC as the main controller, incorporates photoelectric sensors for signal acquisition, and employs analog control systems along with servo motor control systems. Furthermore, the system uses computer software integrated with industrial Ethernet Socket communication functionality via TCP protocols to achieve automatic control of the equipment. The device is configured with three liquid injection ports and three testing electrodes, allowing for simultaneous liquid injection and testing of three sample bottles, thus fulfilling the requirements for automatic liquid injection, automatic oscillation, and automatic testing. The sample testing results are automatically saved on the computer. To date, approximately 15 units of this equipment have been produced, and feedback from several testing institutions indicates that the device operates stably and provides accurate and reliable testing results, with a liquid injection precision of ±1.00 mL, an oscillation precision of ±1 pc/min, and a testing precision of ±0.10 relative to standard values. Compared to manual testing, this system can enhance work efficiency by 300%, significantly improving testing efficiency and reducing labor costs, thereby providing an effective solution for the automation and intelligent design of laboratory testing equipment control systems, and validating the correctness of PLC programming technology in the application of automated testing equipment. [ABSTRACT FROM AUTHOR]
– Name: AbstractNonEng
  Label: Abstract (Chinese)
  Group: Ab
  Data: 传统 pH 值检测方法, 需要人工对样品进行注液、放入振荡设备中振荡萃取、检测 pH 值、录入测试数据、电脑保存等步骤。 针对传统 pH 值检测方法人工检测效率低、劳动强度高等问题, 基于 PLC 编程技术设计了 pH 值自动测试设备控制系统, 提出了以 三菱 FX5U 系列 PLC 作为主控制器, 通过光电传感器完成信号采集, 运用模拟量控制系统及伺服电机控制系统, 并通过电脑软件结 合工业以太网 Socket 通信功能的 TCP 协议收发数据, 来达到用电脑软件自动控制设备的目的。设备共配置 3 个加液口和 3 支测试电 极, 可同时完成 3 个样品瓶的加液及测试, 实现设备自动注液、自动振荡、自动测试的需求, 样品测试结果自动保存在电脑中。 该设备目前已生产约 15 台, 经多家检测机构实际使用反馈其运行稳定、测试结果准确可靠, 加液精度为设定值±1.00 mL, 振荡精 度为设定值±1 pc/min, 测试精度为标准值±0.10。测试效率相比人工检测可提升 300%, 且降低了人工成本, 为实验室测试设备控 制系统自动化及智能化设计提供了有效解决方案, 验证了 PLC 编程技术在自动化检测设备应用的正确性。 [ABSTRACT FROM AUTHOR]
– Name: Abstract
  Label:
  Group: Ab
  Data: <i>Copyright of Mechanical & Electrical Engineering Technology is the property of Mechanical & Electrical Engineering Technology Editorial Office and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract.</i> (Copyright applies to all Abstracts.)
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RecordInfo BibRecord:
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      – Type: doi
        Value: 10.3969/j.issn.1009-9492.2026.08.022
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      – Code: chi
        Text: Chinese
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      – TitleFull: 基于PLC的pH值自动测试设备控制系统设计.
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              Text: Apr2026
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              Y: 2026
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