METHOD AND APPARATUS FOR MEASURING GROUND MOISTURE CONTENT OF SOIL

A method of measuring the moisture content of soil wherein a tapered probe is inserted into a tapered hole formed in the ground. The walls of the hole are tapered substantially in correspondence with the taper of the probe and such that the soil adjacent the walls is not compacted or otherwise affec...

Ausführliche Beschreibung

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Bibliographische Detailangaben
1. Verfasser:	MICHAEL R. DISHMAN
Format:	Patent
Sprache:	eng
Schlagworte:	INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING PHYSICS TESTING
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Beschreibung
Zusammenfassung:	A method of measuring the moisture content of soil wherein a tapered probe is inserted into a tapered hole formed in the ground. The walls of the hole are tapered substantially in correspondence with the taper of the probe and such that the soil adjacent the walls is not compacted or otherwise affected. In this manner, good contact between the surface of the probe and the soil is obtained. The probe is a capacitance sensing probe with a pair of spaced electrodes along the tapered surface with a dielectric material in between. The electrodes serve as structural members of the probe body and the hollow internal portion is backfilled to prevent moisture from permeating the probe.