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Sensing device

  • US 7,561,027 B2
  • Filed: 10/26/2006
  • Issued: 07/14/2009
  • Est. Priority Date: 10/26/2006
  • Status: Active Grant
First Claim
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1. A sensing device comprising:

  • at least a first and a second sensor for sensing at least one physical property and drawing a first and a second electrical signal respectively, the first and second electrical signals corresponding to values of the at least one physical property sensed by the respective first and second sensors; and

    an electrical circuit connected to the first and second sensors, the electrical circuit drawing a third electrical signal,wherein the electrical circuit is configured such that the total electrical signal drawn by the sensing device is proportional to either the first or the second electrical signal, whichever has a higher value, andwherein the electric circuit comprises a first operational amplifier and a second operational amplifier, and wherein the first and the second operational amplifiers are arranged in a voltage follower configuration.

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