| 摘要 |
FIELD: instrument engineering. ^ SUBSTANCE: disturbing effect is applied to powdery medium. Disturbing effect has to be reversible rotation of two rods introduced into powdery medium at different known depths. One of the depths has to be maximal one. Moments of force which act on corresponding rods are measured and level of powdery medium is calculation from given ratio. ^ EFFECT: improved precision of measurement. ^ 1 dwg |
