一、产品简介：

土壤无核密度仪是一种可替代核子密度仪，测量路基和地基压实土壤之物理特性的无核测量仪。它通过电极之间的无线电高频率来测量压实土壤材料的介电性和密度，是一种以电池驱动的便携式仪器，可以在世界各地任何地方使用，而不会带来核安全等相关问题。EDG可 测量并显示干/湿密度、含水量，以及压实百分数，其优质的工作性能和准确的测量结果可以与传统测量法，如核子密度测量法，灌砂法以及干燥法相媲美。
the product introduction:
The soil non-nuclear density meter is an alternative nuclear defect meter that measures the physical properties of subgrade and foundation compacted soil. It measures the dielectric properties and density of compacted soil materials by radio high frequency between electrodes. It is a battery-powered portable instrument that can be used anywhere in the world without nuclear safety and other related issues. . EDG measures and displays dry/wet density, water content, and percent compaction. Its superior performance and accurate measurement results are comparable to traditional measurements such as nuclear density measurement, sand blasting, and drying.
二、技术参数：
♦干密度精度 标准测试的3%以内
♦典型土壤压实范围：标准的压实土壤现场范围
♦含水率精度标准测试的2%以内
♦测量深度 30cm
♦操作环境温度 0-50ºC
♦操作环境湿度 0-90%
♦电源 12V，锂电电池
♦电池寿命完全充 电可用约8小时
♦GPS精度：3M
♦外形尺寸：350*230*40 mm
♦   重量：3kg
♦   附件：2kg
Second, technical parameters:
♦ Dry density accuracy within 3% of the standard test
♦ Typical soil compaction range: standard compacted soil site range
♦ Within 2% of the water content accuracy standard test
♦Measurement depth 30cm
♦ Operating environment temperature 0-50oC
♦ Operating environment humidity 0-90%
♦ Power supply 12V, lithium battery
♦ Battery life is fully charged. It can be used for about 8 hours.
♦GPS accuracy: 3M
♦ Dimensions: 350*230*40mm
♦ Weight: 3kg
♦ Accessories: 2kg

三、性能特点：
♦EDG可测量并现场显示干/湿密度、含水量，以及压实百分数；可代替核子密度测量法、灌砂法及干燥法。
♦产品A无核源！

♦触摸屏；显示更直观清晰，操作更方便。
♦进口温度补偿传感器；灵敏度更高，稳定性更好。
♦新增了GPS扩展功能；如添加该功能，可实现检测点卫星定位，远程数据传输监控等功能。
♦USB接口，数据传输、查看，后期的仪器软件升级更方便。
♦Windows下的软件进行了升级，简化安装方式及数据导出方式，导出数据为Excel表格，编辑、查看操作更简单。
hird, the performance characteristics:
♦ EDG can measure and display on-site dry/wet density, water content, and percentage of compaction; it can replace nuclear density measurement, sand filling method and drying method.
♦ The product is absolutely nuclear-free! No need for highly trained or documented professionals, regardless of the transport or storage of hazardous materials.
♦ Independent mold host; easy to carry and use.
♦ Touch screen; the display is more intuitive and clear, and the operation is more convenient.
♦ Imported temperature compensation sensor; higher sensitivity and better stability.
♦ Added GPS extension function; if added, it can realize satellite positioning of detection point and remote data transmission monitoring.
♦ USB interface, data transmission, viewing, and later instrument software upgrades are more convenient.
♦ The software under Windows has been upgraded to simplify the installation method and data export method. The exported data is an Excel spreadsheet, and the editing and viewing operations are simpler.


四、现场使用方法：
在野外现场，依据模板用锤子将锥形电极或标块以十字式样插入土中。在两个锥形标块的底角之间进行4个点对点的测量并将电特性平均处理。用户可选择用公制SI单位或英制单位显示密度和湿度值。标插入的深度直接影响测量深度。此外，标块的锥度还通过每一次锤击与土壤保持正接触。标块的插入深度决定了测量深度—有不同长度可选。显示屏可显示菜单操作步骤，保存测量结果。
ourth, the use of the site:
In the field, the tapered electrode or the gauge block is inserted into the soil in a cross pattern according to the template. Four point-to-point measurements were taken between the bottom corners of the two tapered blocks and the electrical characteristics were averaged. Users can choose to display density and humidity values in metric SI units or imperial units. The depth of the javelin insertion directly affects the depth of measurement. In addition, the taper of the gauge block is also in positive contact with the soil by each hammering. The insertion depth of the standard block determines the depth of measurement - there are different lengths available. The display shows the menu operation steps and saves the measurement results.

五、测试原理： 
无核密湿度仪（EDG）通过电极之间的无线电高频率来测量压实土壤材料的介电性和密度，并将测量得到的介电性与“土壤模块”做比较。“土壤模块”是土壤类型的特定标准，它有一组预先测量得到的特定介电性，这组介电性代表了一系列的密度值和湿度值。野外测量结束后，利用数学运算法则会计算出干/湿密度、含水量，以及压实百分数。随附的温度探测器还可以增加测量的**性。
Five, the test principle:
The Nuclear Free Humidity Meter (EDG) measures the dielectric properties and density of compacted soil materials by radio high frequencies between the electrodes and compares the measured dielectric properties to the “soil module”. The “soil module” is a specific standard for soil type. It has a set of pre-measured specific dielectrics that represent a range of density and humidity values. After the field measurement is completed, the dry/wet density, water content, and percentage of compaction are calculated using mathematical algorithms. The included temperature probe also increases the accuracy of the measurement.