Patents Assigned to Seds Systems Ltd.
  • Fluid conductivity detecting means
    Patent number: 4010715
    Abstract: An element used in determining the conductivity of fluids. An insulating tube is provided for carrying the fluid to be measured. Cylindrical electrodes surround the tube at laterally spaced positions. When a signal is applied to the electrodes, the tube and fluid act as dielectric in a capacitor. Measurement of the amount of current passed by the capacitor provides an indication of the conductivity of the fluid. Means is provided to minimize the effect of stray currents.
    Type: Grant
    Filed: June 5, 1975
    Date of Patent: March 8, 1977
    Assignee: Seds Systems Ltd.
    Inventors: James D. J. Robar, David G. Glass