Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1986-07-11
1988-12-06
Eisenzopf, Reinhard J.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
324 585B, 324 585A, 73159, 73 73, G01R 2704
Patent
active
047898208
ABSTRACT:
A method and apparatus for simultaneously generating spatial profiles of moisture, thickness, and basis weight across a moving web of paper in a paper making machine. The apparatus includes a plurality of means for generating first and second beams of coherent microwave radiation and for generating signals proportional to the intensity of radiation applied to, reflected from, and transmitted through the web. The incident, reflectance, and transmittance signals for the two frequencies are used to solve simultaneous equations to generate moisture, thickness, and basis weight values at various positions across the web.
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Khazen Antonio
Parrent, Jr. George B.
Reilly James P.
Zeiders Glenn W.
Eisenzopf Reinhard J.
Hercules Incorporated
Solis Jose M.
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