Least
Squares Balance Program for the Hewlett-Packard 48GX Calculator
T. Feese, Vibrations, Vol. 14, No. 1, March 1998.
The least squares
method is commonly used for calculating balance corrections. In
1964, when Goodman [1] published his method, the computations had
to be made on a main frame computer. The process often involved
telephoning from a remote location to a computer center and waiting
for results. Today, handheld calculators are capable of performing
these calculations. Fielding and Mondy [2] wrote a balance program
for a Texas Instruments 59 calculator in 1981. The program presented
in this article is more general and performs both the plain and
weighted least squares methods for n balance planes and m vibration
readings. The vibration data may be taken at a number of locations
and speeds. Multiple baselines can be used so that previous trial
weights need not be removed.
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