英國Delta-T便攜式土壤水分儀HH2-ML3 ML3-Kit
產品概述
英國Delta-T便攜式土壤水分儀HH2-ML3/ML3-Kit是一款科研級土壤水分測量工具，采用FDR（頻域反射）原理設計，能夠快速準確地測量各類土壤和多種介質的體積含水量。該儀器由HH2讀數(shù)表和ML3傳感器組成，具有便攜性強、操作簡便的特點，適合野外定點監(jiān)測或移動測量任務。其堅固的設計既支持短期便攜使用，也可長期安裝于監(jiān)測點。236
技術原理
儀器通過傳感器發(fā)射特定頻率的電磁波，電磁波沿探針傳輸至底部后返回，系統(tǒng)通過檢測探頭輸出電壓的變化，結合土壤介電常數(shù)與含水量的相關性，計算出土壤的實際含水量。這一技術顯著提升了在鹽堿土等復雜環(huán)境中的測量穩(wěn)定性，可適應最高2000mS/m電導率的土壤條件。1519
核心組件
ML3傳感器采用圓柱式防水設計，配備4根不銹鋼探針，標準電纜長度為5米（可擴展至25米）。HH2讀數(shù)表配備16×2行液晶顯示屏和7個操作按鍵，支持數(shù)據(jù)存儲并通過RS232接口連接電腦導出數(shù)據(jù)。套裝包含便攜箱、預打孔工具及備用探針，方便野外作業(yè)。3723
性能特點
• 測量范圍覆蓋0~100%體積含水量，在0~50%范圍內典型精度為±1%
• 內置溫度傳感器，溫度測量精度±0.5℃（0~40℃）
• 改進的白色外殼設計有效降低輻射熱影響
• 支持數(shù)據(jù)導出至Excel表格，便于后續(xù)分析61624
應用領域
廣泛應用于農業(yè)科研、灌溉管理、生態(tài)監(jiān)測等領域，特別適合高爾夫球場、體育場館等精細化管理的場景。其可靠性和易用性使其成為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
英國Delta-T便攜式土壤水分儀HH2-ML3 ML3-Kit
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