标定曲线，如图所示
压力传感器标定曲线454353电压V25215105
0
01
0203压力pMpa
04
05
4
f最小二乘法拟合曲线
x
2i



yi
a
i1
i1

x
ii1




xiyi
2
i1
2
xixii1i1
，b

xiyi
i1





i1

xiyi
i12


；
2
xixii1i1
可得a10223，b62566，即y1022362566x
压力传感器最小二乘参考曲线454353电压V25215105
0
01
02
03压力pMpa
04
05
2非线性度
压力xpMpa平均输出yiv最小二乘直线输出yi非线性偏差yiL压力xpMpa平均输出yiv最小二乘直线输出yi非线性偏差yiL

Ls
：
0102151022300008030289842899300009005133631335100012035321193212100002010164821647900003040352393524900010
5
015196121960800004045383763837800002
020227312273600005050415204150600014
025258672586400003
fyL

L
00014
max
，y
FS
bxmaxxmi
31283，
yL
y
Fs
max
100
0001431283
10000448
3迟滞误差
压力xpMpa正行程输出yui反行程输出ydi正反行程偏差yiH压力xpMpa正行程输出yui反行程输出ydi正反行程偏差yiH

H
0102201021000010030289822898600004
005133641336200002035321143212400010
010164841648000004040352363524200006
015196141961000004045383723838000008
02022734227280000605041520415200
025258662586800002
yHmaxyiH00010
，


H
yH
2yFS
max
100
0001231283
10000160
；
6
f4非线性迟滞
压力xpMpa正行程输出yui反行程输出ydi最小二乘直线输出yi
yuiyiydiyi

LH
0102201021010223000030001300013030289822898628993000110000700011
005133641336213351000130001100013035321143212432121000070000300007
010164841648016479000050000100005040352363524235249000130000700013
015196141961019608000060000200006045383723838038378000060000200006
020227342272822736000020000800008050415204152041506000140001400014
025258662586825864000020000400004
非线性迟滞误差yiLH压力xpMpa正行程输出yui反行程输出ydi最小二乘直线输出yi
yuiyiydiyi
非线性迟滞误差yiLH
yLH
maxyiLH00014，
max


LH
yLH
y
FS
max
r