Stevens GroPoint Profile
GroPoint™ GPLP土壤传感器是一款性能稳健、外表光滑、高精度、高性价比的多段式土壤湿度和温度测量设备。支持使用一个探测器来完成不同深度的土壤湿度和温度的测量，避免在土壤不同深度放置多个传感器。GPLP使用时域透射测量技术 (TDT)和自主专利的天线技术。采用了光滑轻质设计的GPLP，利用导杆和滑锤工具，可以快速完成安装并对测量土壤的破坏降低到最小。GPLP设计利于垂直安装，传感器可以一次测量多个土壤层，每个区域可对15厘米(6英寸)深度的土壤进行平均含水量的测量。探测器附带一根5米(16.4英尺)的线缆。GPLP使用SDI-12串行数字协议和接口，简化集成、可靠性强。GPLP剖面探测器由土壤湿度和温度传感器组成，传感器垂直排列，为多深度土壤湿度读取提供一个精简的装置。GPLP可以部署在灌溉敏感区域，实现精确灌溉所需的完全控制，帮助用户了解水分在土壤中的移动情况。
An Accurate and Cost-Effective Soil Profiling Solution
避免使用多个传感器和线缆，简化系统部署
使用一个SDI-12地址可读取所有分段测量数据
低功耗，适合远程使用
适用于长期测量使用，稳定性性能优异
全密封封装设计，极好的耐用性和一致性
SDI-12接口产品，用户可使用3阶多项式进行校准
产品可组成2段、3段、4段、6段、8段，对应尺寸大约为30厘米（1英尺）、45厘米(1.5英尺)、60厘米(2英尺)、90厘米(3英尺)、120厘米(4英尺)深度
使用裸线连接，也可选择4Pin、IP66/IP68规定的环境连接器
结实、可靠、测量精准，性价比高
Simplify Measurement of Soil Moisture at Multiple Depths
This single GroPoint Profile probe installed without excavation is equivalent to 4 separate probes. It will measure soil moisture at 4 different depths.
Segment 1
Average volumetric soil content measured over 15cm (5.9")
Segment 2
Segment 3
Segment 4
Analyze
water
movement
through
the soil.
Create a pilot hole the exact size required for the probe using the slide hammer tool attached to a sturdy steel pilot rod. This makes installation quick and easy, and provides minimum soil disruption, further increasing measurement accuracy.
2
3
4
5
6
Choose the number of segments that’s right for your application.
Ideal for a Multitude of Agricultural Applications
- Fully potted electronics for excellent durability and consistency of operations.
- SDI-12 output (RS485 optional).
- Cable sits flush with surface without pinching.
- Also measures soil temperature.
Uses Time Domain Transmission (TDT) and patented antenna technology
The GroPoint Profile’s patented technology employs a unique antenna design that enables accurate and repeatable measurements within a highly cost-efficient electronics and mechanical design. It detects water as much as 5 cm (2”) from the surface of the probe fins. Like all dielectric-based sensors, moisture closest to the surface of the probe has more influence on the readings than moisture further away so that soil closely surrounding the sensor will have a greater influence on the soil moisture.
TDT measures the time taken for an electromagnetic wave to propagate (travel) along a given length of a transmission line in the soil. Moisture in the soil changes the soil’s dielectric properties, so that the electro-magnetic wave travels at different rates in wet soil compared to dry soil. This allows for the accurate determination of the soil moisture content.
Stevens Water Monitoring Systems, Inc. | Portland, OR, USA