Variable

Mechanistic methods

Electromechanical methods

CoP

LMТ

LMТI

Comparative uncertainty according to CoP_SI

0.0048

0.0245

S_G = G_max − G_min, m²·kg⁻¹·s⁻²

2.12 × 10^–14

1.72 × 10^–14

Relative uncertainty according to CoP_SI (IARU)

1.5 × 10^–6

6.3 × 10^–6

Achieved experimental lowest relative uncertainty

1.9 × 10^–5

1.2 × 10^–5