Dielectric slit die for in-line monitoring of liquids...

Details Dielectric slit die for in-line monitoring of liquids... Dielectric slit die for in-line monitoring of liquids...

2006-12-05

2006-12-05

Larkin, Daniel S. (Department: 2856)

Measuring and testing

Liquid analysis or analysis of the suspension of solids in a...

C073S053040, C073S054110, C073S054140

Reexamination Certificate

active

07143637

ABSTRACT:
The dielectric slit die is an instrument that is designed to measure electrical, rheological, ultrasonics, optical and other properties of a flowing liquid. In one application, it is connected to the exit of an extruder, pump or mixing machine that passes liquefied material such as molten plastic, solvents, slurries, colloidal suspensions, and foodstuffs into the sensing region of the slit shaped die. Dielectric sensing is the primary element of the slit die, but in addition to the dielectric sensor, the die contains other sensing devices such as pressure, optical fiber, and ultrasonic sensors that simultaneously yield an array of materials property data. The slit die has a flexible design that permits interchangeability among sensors and sensor positions. The design also allows for the placement of additional sensors and instrumentation ports that expand the potential data package obtained.

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