TY - JOUR
AU - Luthin, James N.
AB - Published December, 1949 A REEL-TYPE ELECTRIC PROBE FOR MEASUR- ING WATER TABLE ELEVATIONS N the course of drainage research at Iowa State I College, many hundreds of measurements of the water table are required. Piezometers consisting of g-inch perforated iron pipes were driven into the ground in tile-drained fields with either 2 or 6 inches of the piezometer extending above the surface of the ground. A probe or water elevation measuring device was needed that satisfied the following requirements : (I) would give the largest number of readings in the shortest time; (2) could be used without stooping; (3) . was sturdy to stand up under rough field usage by un- FIG. a.-Underside of plywood square. trained personnel; and (4) was inexpensive and simple to construct. The probe described below has been found to satisfy these requirements. Fig. I shows a general over-all view of the probe. A fishing reel (Oreno No. 1165) is mounted on a square of plywood. A block of wood raises the reel about $ inch off of the plywood to allow easy operation of the handle. A length of graduated radio test lead wire is wound on the reel and one end of the 
TI - A Reel‐Type Electric Probe for Measuring Water Table Elevations
JF - Agronomy Journal
DO - 10.2134/agronj1949.00021962004100120008x
DA - 1949-12-01
UR - https://www.deepdyve.com/lp/wiley/a-reel-type-electric-probe-for-measuring-water-table-elevations-6YzxOrGgcl
SP - 584
EP - 585
VL - 41
IS - 12
DP - DeepDyve
ER -