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Adaptive feedback sources for application controllers

  • US 7,706,926 B2
  • Filed: 10/30/2007
  • Issued: 04/27/2010
  • Est. Priority Date: 10/30/2007
  • Status: Active Grant
First Claim
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1. A sprayer comprising a controller, an output means, a flow sensor, a pressure transducer, and an application means, wherein:

  • the flow sensor and the pressure transducer are operatively linked to the controller and the application means;

    the controller is operatively linked to the application means through an output means; and

    the controller receives input from at least one of the flow sensor and the pressure transducer and sends operating instruction to the application means using the output means;

    wherein the controller can determine the flow rate using input from the flow sensor and the pressure transducer simultaneously;

    wherein the controller switches the source of input from the pressure transducer to the flow sensor when there is a failure of the pressure transducer; and

    wherein the controller switches the source of input from the pressure transducer to the flow sensor when the input from the pressure transducer exceeds a pre-determined threshold.

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