英国Delta-T便携式土壤水分仪HH2-ML3 ML3-Kit
产品概述
英国Delta-T便携式土壤水分仪HH2-ML3/ML3-Kit是一款科研级土壤水分测量工具,采用FDR(频域反射)原理设计,能够快速准确地测量各类土壤和多种介质的体积含水量。该仪器由HH2读数表和ML3传感器组成,具有便携性强、操作简便的特点,适合野外定点监测或移动测量任务。其坚固的设计既支持短期便携使用,也可长期安装于监测点。236
技术原理
仪器通过传感器发射特定频率的电磁波,电磁波沿探针传输至底部后返回,系统通过检测探头输出电压的变化,结合土壤介电常数与含水量的相关性,计算出土壤的实际含水量。这一技术显著提升了在盐碱土等复杂环境中的测量稳定性,可适应最高2000mS/m电导率的土壤条件。1519
核心组件
ML3传感器采用圆柱式防水设计,配备4根不锈钢探针,标准电缆长度为5米(可扩展至25米)。HH2读数表配备16×2行液晶显示屏和7个操作按键,支持数据存储并通过RS232接口连接电脑导出数据。套装包含便携箱、预打孔工具及备用探针,方便野外作业。3723
性能特点
• 测量范围覆盖0~100%体积含水量,在0~50%范围内典型精度为±1%
• 内置温度传感器,温度测量精度±0.5℃(0~40℃)
• 改进的白色外壳设计有效降低辐射热影响
• 支持数据导出至Excel表格,便于后续分析61624
应用领域
广泛应用于农业科研、灌溉管理、生态监测等领域,特别适合高尔夫球场、体育场馆等精细化管理的场景。其可靠性和易用性使其成为全球土壤水分研究的常用工具。1523
Product Overview
The Delta-T HH2-ML3/ML3-Kit portable soil moisture meter is a research-grade instrument from the UK, employing FDR (Frequency Domain Reflectometry) technology to measure volumetric water content in various soils and substrates. Comprising an HH2 readout unit and ML3 sensor, this robust system is designed for both portable field use and permanent installation, offering flexibility for moisture monitoring tasks. 2322
Technical Principle
The sensor emits electromagnetic waves through its probes, analyzing the voltage output reflected from the substrate. By correlating dielectric permittivity changes with moisture content, it delivers stable measurements even in saline soils with conductivity up to 2000mS/m. The white housing minimizes solar heating interference. 51419
Key Components
The ML3 sensor features a waterproof cylindrical body with four stainless-steel probes and 5-meter standard cable (extendable to 25m). The HH2 unit includes a 16×2 LCD, 7-button interface, and 227-2186 data point storage capacity. The kit comes with a carrying case, auger tool, and spare probes for field efficiency. 3723
Performance Highlights
• Measures 0~100% volumetric water content with ±1% typical accuracy (0~50% range)
• Integrated temperature sensor (±0.5℃ accuracy at 0~40℃)
• Optimized cable design for easy deployment and transport
• Data export via RS232 for spreadsheet compatibility 61624
Applications
Ideal for agricultural research, precision irrigation, and ecological studies, this system is particularly valued in turf management applications like golf courses and sports fields, combining operational simplicity with reliable performance. 1523
英国Delta-T便携式土壤水分仪HH2-ML3 ML3-Kit




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