Flexible tube sonic waveguide for determining liquid level

Details Flexible tube sonic waveguide for determining liquid level Flexible tube sonic waveguide for determining liquid level

1989-05-03

1990-07-03

Strecker, Gerard R.

Electricity: measuring and testing

Magnetic

Displacement

73314, 333148, 32420724, G01B 726, G01F 2330, H04B 1100, H03H 922

Patent

active

049394576

ABSTRACT:
A sonic delay line assembly suitable for shipping in coiled form allowing for expedited installation, particularly in liquid storage tanks. The sonic delay line comprises a sonic waveguide made of solid wire, which also serves as an electrical pulse conductor for the generation of sonic pulses on waveguide through interaction with a positionable static magnetic field. A sonic waveguide containment can be provided to protect the flexible tubing and sonic waveguide. Positioned around the containment and free to ride up and down the containment as liquid levels in the tank vary is a float. The float carries an annular magnet with poles axially aligned with sonic waveguide to provide the magnetic field with which the magnetic fields of the electrical pulses on the sonic waveguide interact.

REFERENCES:
patent: 3898555 (1975-08-01), Tellerman
patent: 4000651 (1977-01-01), Christiansen
patent: 4726226 (1988-02-01), Tellerman
patent: 4803427 (1989-02-01), Mason et al.

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