Finally I could measure the ratio. For that the Workbench script was used with the following settings:
[Dmm]
WaitBeforeMeasurement=0 s
CompareToValue=0.628318
MatchWithESerie=E24
SenseFunction=DCVoltageRatio
AutoRange=1
NPLCycles=12 cycle
LineSync=1
Average=0
AutoZero = 1
AutoDelay = 1
Resulting in this report, measuring 1V increments on the input:
Multimeter measurements
1V
Value : 0,62839996295304550400000000000000 ± 0
Difference : 0,000081962953045411340800000000000000 ± 0
Absolute difference : 0,000081962953045411340800000000000000 ± 0
Relative difference : 0,013043118694699171200000000000000% ± 0%
2V
Value : 0,62838020793605836800000000000000 ± 0
Difference : 0,000062207936058378265600000000000000 ± 0
Absolute difference : 0,000062207936058378265600000000000000 ± 0
Relative difference : 0,0098997287426831718400000000000000% ± 0%
3V
Value : 0,62837080755629478400000000000000 ± 0
Difference : 0,000052807556294776070400000000000000 ± 0
Absolute difference : 0,000052807556294776070400000000000000 ± 0
Relative difference : 0,0084038844038828326400000000000000% ± 0%
4V
Value : 0,62835496905920064000000000000000 ± 0
Difference : 0,000036969059200586681600000000000000 ± 0
Absolute difference : 0,000036969059200586681600000000000000 ± 0
Relative difference : 0,0058834673108320140800000000000000% ± 0%
5V
Value : 0,62833842142405388800000000000000 ± 0
Difference : 0,000020421424053784774400000000000000 ± 0
Absolute difference : 0,000020421424053784774400000000000000 ± 0
Relative difference : 0,0032500676956061446400000000000000% ± 0%
6V
Value : 0,62830822357674188800000000000000 ± 0
Difference : -0,0000097764232581676326400000000000000 ± 0
Absolute difference : 0,0000097764232581676326400000000000000 ± 0
Relative difference : 0,0015559916122876492800000000000000% ± 0%
7V
Value : 0,62827671647082355200000000000000 ± 0
Difference : -0,000041283529176427968000000000000000 ± 0
Absolute difference : 0,000041283529176427968000000000000000 ± 0
Relative difference : 0,0065709150274304524800000000000000% ± 0%
8V
Value : 0,62822916308786752000000000000000 ± 0
Difference : -0,000088836912132461696000000000000000 ± 0
Absolute difference : 0,000088836912132461696000000000000000 ± 0
Relative difference : 0,014140844989718582400000000000000% ± 0%
9V
Value : 0,62818043776265536000000000000000 ± 0
Difference : -0,00013756223734462392000000000000000 ± 0
Absolute difference : 0,00013756223734462392000000000000000 ± 0
Relative difference : 0,021898522952190192000000000000000% ± 0%
10V
Value : 0,62812450745954022400000000000000 ± 0
Difference : -0,00019349254045986086400000000000000 ± 0
Absolute difference : 0,00019349254045986086400000000000000 ± 0
Relative difference : 0,030804806716178713600000000000000% ± 0%
11V
Value : 0,62806336209636569600000000000000 ± 0
Difference : -0,00025463790363433603200000000000000 ± 0
Absolute difference : 0,00025463790363433603200000000000000 ± 0
Relative difference : 0,040543346261179641600000000000000% ± 0%
Sorry for all the digits. For the ratio function of the DMM I didn't implement uncertainties (lack of documentation if I remember correctly).
The performance is around 0.01%, worsening at higher voltages. This could be better when the resistors took the same amount of power.
Which where calculated for 10V:
CalculatedValues_ComponentSimulationPower
consumes
Choosen values - divider
V_DividerMax : 10,000 V
intermediate
R_Replacement_A : 132,41 Ω
R_Replacement_B : 78,32 Ω
R_Replacement_Tot : 210,73 Ω
P_Replacement_Tot : 474,5 mW
Q_R101 : 20,846%
Q_R102 : 12,668%
Q_R103 : 16,851%
Q_R104 : 12,466%
Q_R105 : 10,383%
Q_R106 : 8,435%
Q_R107 : 10,205%
Q_R108 : 8,145%
provides
P_R101 : 98,92 mW
P_R102 : 60,12 mW
P_R103 : 79,96 mW
P_R104 : 59,16 mW
P_R105 : 49,27 mW
P_R106 : 40,03 mW
P_R107 : 48,43 mW
P_R108 : 38,65 mW
Task "CalculatedValues_ComponentSimulationPower" was successfully executed (122,3 μs)