f19e04f1_hematical_and_utility_software__Description
[Name (click to download)] PSYCH.ZIP (~20 Kbytes) 03/14/04 [Description] 
No this isn't something to help with the voices you hear. It refers to a wet/dry bulb psychrometer used to measure relative humidity and dewpoint. This program provides the calculations needed to convert the measured temperature difference to the desired values. See also DEW.
Marv Klotz's Utilities: home shop, mathematical and utility software
Description