Patents Assigned to Miami R & D Limited Partnership
  • Patent number: 4470123
    Abstract: A system for indicating ice thickness and rate of ice thickness growth on surfaces is disclosed. The region to be monitored for ice accretion is provided with a resonant surface waveguide which is mounted flush, below the surface being monitored. A controlled oscillator provides microwave energy via a feed point at a controllable frequency. A detector is coupled to the surface waveguide and is responsive to electrical energy. A measuring device indicates the frequency deviation of the controlled oscillator from a quiescent frequency. A control means is provided to control the frequency of oscillation of the controlled oscillator. In a first, open-loop embodiment, the control means is a shaft operated by an operator. In a second, closed-loop embodiment, the control means is a processor which effects automatic control.
    Type: Grant
    Filed: January 5, 1982
    Date of Patent: September 4, 1984
    Assignee: Miami R & D Limited Partnership
    Inventors: Bertram Magenheim, James K. Rocks