Campbell CR850 - Page 439

Section 11. Glossary
439
parameter
Argumentorparameter?Thesetermsarefrequentlyinterchanged,but
haveausefuldistinction.Aparameterispartofaprocedure(or
command)definition;anargumentispartofaprocedurecall(or
commandexecution).Anargumentisplaceinaparameter.For
example,intheCRBasiccommandBattery(dest),destisaparameter
andsodefin
eswhatistobeputinitsplace.IfavariablenamedBattVis
meanttoholdtheresultofthebatterymeasurementmadeby
Battery(),BattVistheargumentplacedindest.Example:
Battery(BattV)
BattVistheargument.
periodaverage
Ameasurementtechniqueutilizingahigh‐frequencydigitalclockto
measuretimedifferencesbetweensignaltransitions.Sensorscommonly
measuredwithperiodaverageincludevibrating‐wiretransducersand
water‐contentreflectometers.
peripheral
Anydevicedesignedforusewith,andrequiring,theCR800(oranother
CampbellScientificdatalogger)tooperate.
Ping
Asoftwareutilitythatattemptstocontactanotherspecificdeviceina
network.
PoissonRatio
Aratiousedinstrainmeasurementsequaltotransversestraindivided
byextensionstrain.v=‐(ε
trans
/ε
axial
).
precision
Ameasureoftherepeatabilityofameasurement.Alsoseetheappendix
Accuracy,Precision,andResolution
(p.449).
PreserveVariables
PreserveVariablesinstructionprotectsPublicvariablesfrombeing
erasedwhenaprogramisrecompiled.