| 摘要 |
FIELD: measuring technique. ^ SUBSTANCE: ultrasonic indicator comprises front panel, transparent electrode, and layer of colloidal suspension of particles in a dielectric liquid interposed between the electrodes. The complex refraction index of colloidal particles differs from that of the dielectric liquid. The second electrode is made of a piezoelectric plastics provided with the conducting coating whose outer side is connected with the transparent electrode. ^ EFFECT: expanded functional capabilities. ^ 1 dwg |
