ULTRASONIC DEVICE FOR DETERMINATION OF BOUNDARY OF TWO IMMISCIBLE LIQUID MEDIA Russian patent published in 1998 - IPC

FIELD: measurement technology. SUBSTANCE: device has waveguide and measuring winding embracing it positioned in sealed tube. Device also has generator coupled to radiating element mounted at waveguide end and floats with permanent magnets secured on them. When environmental parameters change sound velocity in waveguide material varies too. Magnetizing winding which corrects sound velocity in waveguide as required is introduced into device to remove error caused by the above-indicated variation. Magnetizing is performed by direct current. In addition to determination of liquid media boundary, given device provides for measurement of common level to mixture in reservoir. EFFECT: enhanced accuracy, enlarged functional capabilities. 1 dwg