Electricity: measuring and testing – Measuring – testing – or sensing electricity – per se – Frequency of cyclic current or voltage
Patent
1977-12-27
1980-04-01
Rolinec, Rudoloph V.
Electricity: measuring and testing
Measuring, testing, or sensing electricity, per se
Frequency of cyclic current or voltage
23230A, 127 16, 127 61, G01F 2328, G01R 2704, C13F 102
Patent
active
041963857
ABSTRACT:
In a method and apparatus for measuring the concentration of a fluid depending on the dielectric constant of the fluid, electric oscillations are supplied from a source through an impedance matching link to an antenna placed in the liquid within the confines of a Faraday cage, and the electric power reflected from the antenna towards the source is measured to determine deviations from ideal matching resulting from changes of the dielectric constant of the fluid. In an important embodiment, the measurement is used for the automatic programmed control of the supply of syrup in a sugar crystallization process in accordance with a predetermined program.
REFERENCES:
patent: 3424002 (1969-01-01), Johnson
patent: 3474337 (1969-10-01), Petrick
patent: 3572119 (1971-03-01), Bak
patent: 3695107 (1972-10-01), Hertz et al.
patent: 3703829 (1972-11-01), Dougherty
patent: 3812422 (1974-05-01), DeCarolis
patent: 3832900 (1974-09-01), Ross
patent: 3853005 (1974-12-01), Schendel
patent: 3995212 (1976-11-01), Ross
patent: 4054255 (1977-10-01), Magenheim
Madsen Rud F.
Moller Gunther
Vestergaard Peter
Aktieselskabet de Danske Sukkerfabrikken
Karlsen Ernest F.
Rolinec Rudoloph V.
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