| 摘要 |
FIELD: ultrasound delay lines. ^ SUBSTANCE: solid reverberation ultrasound delay line for generation of low-frequency fluctuations of reflected signals, imitating spectrum of passive interferences for checking resistance to interference of radiolocation stations contains piezo-electric transformers, which are made immovably connected to solid sound duct. Fluctuations of repeated reflections are provided by movement of liquid, positioned on the surface of sound duct. Between sound duct and element of pressurization ultrasound decoupling is positioned, for example, L-shaped - knee. ^ EFFECT: simplified construction, increased durability and reliability, provision of fastening and pressurization of sound duct without increasing fading of repeated reflections. ^ 1 cl, 1 dwg |
