Littelfuse, Inc.

Rimantas Misevicius

Brian Johnson

Efrem Fesshaie

Jürgen Scheele

A waveguide system may include an inner core, and a conductor wound around the inner core in conductive coils having a coil length, wherein a voltage pulse received by the pulsed waveguide propagates as an induced wave having a group velocity, the group velocity being below a threshold velocity, wherein a reflection signal or an end of line signal generated within the conductor from the induced wave is detectable from the initial voltage pulse.

Pulsed wave guide liquid quality measurement

A waveguide arrangement may include a tank defining a chamber for holding a liquid; and a pulsed waveguide (PWG) disposed at least partially within the chamber, the PWG comprising: an inner cylinder, the inner cylinder being grounded. The waveguide may also include an electrically conductive coil wrapped around the inner cylinder, wherein the pulsed waveguide is arranged to generate a first delay between a first initial pulse and a first reflected pulse when an upper surface of the liquid is at a first level, and to generate a second delay between a second initial pulse and a second reflected pulse when the upper surface of the liquid is a second level.

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Auburn Hills, MI, United States of America

Rimantas Misevicius