oofda! A new HP41 module discovery ??

[Didier Lachieze]

Here is another reference that may be linked to this MERVA ROM:

Quote:Velocity Permeameter
The velocity permeameter estimates the field saturated hydraulic conductivity of the soil contained inside a metal cylinder driven into the soil in either the vertical or horizontal direction. A copyrighted computer program for a hand-held HP-41 calculator with a time module was used to calculate the apparent saturated hydraulic conductivity as the measurements are taken. Installation and operation of the computer program were based on instructions obtained directly from Dr. Merva (Written communication, 1988).

Extract from: Transactions of the ASAE., Volume 33, Issues 4-6; Volumes 4-6
American Society of Agricultural Engineers, 1990