At height of 25 cm, 5-cm-diameter holes were made using a hole saw to install the access tube that allows to monitor soil moisture using the Diviner 2000* capacitance probe
. Each experimental unit received 12 [dm.sup.3] of soil.
is another kind of electrical sensor.
Yokogawa Test & Measurement's Model 701974 PBL5000 5-GHz Low Capacitance Probe
comes with both resistor values so you can interchange them as required.
Kelleners TJ, Soppe RWO, Ayars JE, Skaggs TH (2004) Calibration of capacitance probe
sensors in a saline silty clay soil.
The bendable capacitance probe
is designed to fit in tight spaces or in vessels Nwhere obstructions prevent the installation of a straight probe.
BinMaster Level Controls introduces a newly designed Pro Remote capacitance probe
that offers the ability to mount the sensor's electronic components up to 75 feet away from the sensing probe.
This paper describes how a neutron probe (NP) and a multi sensor capacitance probe
(MCP) can be used for monitoring the soil water content in order to develop a soil water balance and to estimate the evapotranspiration (ETc) of an apricot (Prunus armeniaca L.) crop.
The capacitance probe
measurement system consists of two specially made capacitance probes
connected to a commercially available two-channel capacitance amplifier with an accuracy of 0.015 % (ACCUMEASURE 5000[R], MECHANICAL Technology Inc., Albany, NY, U.S.A.) (MIT Instruments Inc., 2000).
But at $20 000, a capacitance probe
is still beyond the means of most smaller producers.
Evaluation of the Sentek EnviroSCAN RT5 capacitance probe
: Laboratory calibration and field analysis.
For the use of the Diviner 2000[R] capacitance probe
in the irrigation management, the reading points were calibrated at each soil water content.
After calibration of the output signals for known voidages, the capacitance probe
was used to measure the voidage distribution in a fluidized bed of fluid coke particles.