HP 5528A User Manual

OCT 87
Model 5528A
Straightness
and S quarenes s Co nsiderations
Therefore -
V' I Ope = m, X + bl -.: 8.33X - 0 .3
Ytrue
:: YLMS - Y,lope
X
=
0.0 0.1 0.2 0.3 0.4 0.5 0 .6 0.7
0.8
0.9
YLMS =
-<> .3
0.9 1.5 2.5 2.9 3.6 4.2 5.1 5.9 7.2
Y,t ope = -<> .3
0
.5 1.4 2.2 3.0 3.9 4.7 5.5 6.4 7.2
Yt rue -
0.0 0.4
0.1 0.3
-0. 1 -0 .3 -0.5 -<>.4
-<>.5
0.0 (microns)
For
Axis 2 -
Our raw data h. -
YLMS :: -0.5, -1 .2, -2 .5, -3.8, -4.0, -4.8, -5.9, -6.2, -7,4, -8 .8 (microns)
x "" 0.0. 0. 05 , 0.1. 0.1 5, 0.2. 0.25, 0.3, 0.35, 0.4, 0,45 (me tre )
Number of points = 10
Calculations for Axis 2 -
Total distan
ce travelled: AX - 0.45 metre
Slope m2 "" .!loY / AX - (-8.8-(-0.5))/(0.45-0.0)
= -18,44 micron s/ metr e
In tercept "" b2 = - 0.5 microns (at X = 0, you want Y'fU II = 0)
Therefore -
YSl ope = ml X + bl "" 20.67X - 0.5
Vt r ue = YLM S - YSlope
x = 0.0 0.05 0.1 0.15 0.2 0 .25 0 .3 0 .3 5 0.4 0.45
VLMS = -0 .5 1 .2 -2.5 - 3.8 -4.0 -4.8 - 5.9 -6 .2 -7 .4 - 8.8
V' t ope = -0 .5 -1.42 -2.34 -3.27 -4.19 - 5.1 -6 . 03 -6 . 96 -7.88 -8.8
0.0 -0 .22 -0. 16 -0. 53 0.19 0.31 0. 13 0 .7 6 0.48 0.0 (microns)
LEAST SQUARES FIT METHOD
To remove sl ope from yo ur measurement data, using the least Squares fit Method, you should
a. Determine both the slo pe (m) and t he int ercep t (b) fr om ca1c ul mi ons on your raw data.
b.
Id entify the eq uation of the line of your slope -
V ,lop e = mX + b,
21-3

HP 5528A Specifications

General

Brand	HP
Model	5528A
Category	Measuring Instruments
Language	English