Measuring Technology for Soil and Water Analytics and for Clima Control
 deu
 |
|||
|
Products
|
Volumetric soil moisture measurement with FDR Volumetric soil moisture measurement based on FDR technology
The latest development in monitoring soil moisture are sensors to determine the volumetric water content by measuring the dielectric constant of the media through the utilization of capacitance/frequency domain technology. This technique is a cost-effective, reliable, fast and accurate soil moisture measuring method. In contrast to the TDR-method (Time Domain Refelctometry), the FDR technology is based on determining the difference, not the time, between emitted and reflected electromagnetic waves. This is the basis for the calculation of the volumetric water content of the measured media. The FDR sensor provides immediate measurement results and can be used as The sensors are maintenance-free and frost-proof. Good soil-to-sensor contact is essential for accurate measurements. The sensor is pushed directly in the undisturbed soil. Because the moisture is measured along the entire length of the sensor, the user can easily determine the moisture in various soil profiles. When installed vertically, the soil moisture reading is the average across the length of the sensor. According to the estimated application, two different sensors are available:
- EC-5 sensor for use in greenhouses (potting soils, peat substrates, rockwool, etc), The hand-held meter MST 3000 can be used for readout of both sensors. The clearly readable LEDs display the result in % VWC (volumetric water content). According to the used sensor and the type of soil, various calibration settings can be selected. The Datalogger SW 3000 combines the state-of-the-art sensor technology with intelligent data communication. Two models are available: data transfer via Bluetooth on the mobile phone or alternatively via GPRS modem and SIM card directly to an internet data base. Model Bluetooth: The datalogger SW 3000 measures and saves the data permanently. Readout and data transfer can easily be carried out with a bluetooth-compliant mobile phone. The serial number of the datalogger is automatically recognized and thus the mobile phone can be used as datashuttle for a number of dataloggers. From the mobile, the data can be routed to an available database in the internet or to any other person being in charge of it. Model GPRS: Analog to the system T-Warner (see page 26-28), the SW 3000 can be equipped with a GPRS telemetry module. All data are saved on an internet platform. Beside the continuous data documentation, the use of this platform even provides an alert systems. Each datalogger SW 3000 can be operated with two different types of power supply: 220-V-mains voltage (in greenhouses) or alternatively solar-energy-powered rechargable batteries (for open field application). Up to three sensors can be connected to one SW 3000 datalogger, e.g. for measurement of different soil profiles or to get the average in different pots, containers, etc. More sensors can be connected by using sensor chains, according to the T-warner system solution.
|
Search
Latest News
We are a member of
German Products for Horticulture
|
|
News
