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Variable-conductance sensor

DC CAFC
  • US 5,999,084 A
  • Filed: 06/29/1998
  • Issued: 12/07/1999
  • Est. Priority Date: 06/29/1998
  • Status: Expired due to Fees
First Claim
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1. A pressure-sensitive variable-conductance analog sensor with tactile feedback, comprising;

  • a housing;

    at least two conductive elements fixed to said housing and in-part within said housing;

    a depressible actuator retained by said housing and in-part exposed external to said housing;

    a resilient snap-through dome-cap positioned within said housing and depressible with force from said actuator applied to said dome-cap to cause said dome-cap to snap-through and create a tactile feedback;

    pressure-sensitive variable-conductance material within said housing and positioned as a variably conductive element electrically between said two conductive elements, and further positioned for receiving force applied to said dome-cap, whereby electrical conductivity of said pressure-sensitive variable-conductance material is altered relative to received force and electrical output of said sensor is variable.

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