Amongst the simplest of tools for environmental management, Soil Water samplers perform the task of collecting available soil water along with dissolved minerals, nutrients and also pollutants. Having different names across the world, such as Lysimeters, Soil solution Access Tubes, Pore water samplers, this family of instruments is the must have for anyone wishing to know what goes on beneath the soil. Be it a farmer or a conservationist, sampling with this instrument tells you whether to add fertilizers or what remedial action must be taken.
The penetrologger is a versatile instrument for in situ measurement of the resistance to penetration of the soil. Continuous measurements can be made with the penetrologger recording each layer of the ground profile up to 80 cm on the chart. In broad lines the penetrologger consists of a force sensor, the logger, a probing rod, a conus and an ultrasone depth measurement system.
The resistance to penetration (kPa/cm2) of the soil can now be determined by dividing the reading value by the surface of the cone. The value of the resistance to penetration to be expected determines the surface of the cone to be used. For high values the small cone is used and for low values the larger cones are applied. The larger the cone the more accurate the value of the resistance to penetration can be determined.
The penetrograph is a devise for determination of the penetration resistance of the ground. The standard set is equipped with various penetration cones, recorder pens, probe rods and recording charts. The entire set, including spare parts, instructions, cone check and the tool are packed in an aluminium carrying/transport case. Every penetrograph is supplied with a quality test report. The penetrograph measuring range is up to 5000 kN/m2 (= 5 MPa) and is suitable for measurements at depths up to 0.80 m
The penetration resistance of a soil is a measure for the determination of the bearing capacity and the root development possibilities. The penetrometers described here are used to measure the penetration resistance of the top layer. Specifically in the green area planning (maintenance of sports fields, parks, etc.) there is an increasing need to combine quantitative measurements in the soil profile with all kinds of aspects of the use of the soil (for instance the resistance of the turf against treading in respect to whether or not the field is playable)
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