This citation summarizes a one-page announcement of technology available for utilization. A controller for solar heating uses inexpensive thermocouples as temperature sensors and uses simple logic circuits to select among four operating modes. The sensor signals are multiplexed through the same amplifier, instead of each being processed by separate amplifiers. Errors caused by differing amplifier characteristics are therefore avoided. Control is based on temperature differences (rather than on absolute temperatures). The controller was built for a solar heater in which air is the heat-transfer medium. ...FOR ADDITIONAL INFORMATION: Contact: The Patent Counsel, Marshall Space Flight Center, Alabama. Refer to MFS-25287.


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    Title :

    Multiplexed Logic Controls Solar-Heating System: Inexpensive sensors and logic circuits select from four operating modes


    Publication date :

    1981


    Size :

    1 pages


    Type of media :

    Report


    Type of material :

    No indication


    Language :

    English





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