×

Acceleration sensor

  • US 4,991,682 A
  • Filed: 01/18/1989
  • Issued: 02/12/1991
  • Est. Priority Date: 01/20/1988
  • Status: Expired due to Fees
First Claim
Patent Images

1. An apparatus for measuring acceleration, comprising:

  • a plurality of acceleration sensors, being jointly subjected to an acceleration to be measured, said sensors being designed to switch and generate at an output thereof a logical signal when a predetermined individual acceleration threshold value is exceeded, with individual threshold values of said acceleration sensors being different one from the other;

    sampling means for sampling a bit-pattern consisting of said logical signals at said outputs when an acceleration is exerted on said sensors;

    memory means having stored therein a plurality of bit patterns corresponding to physically possible or impossible switching conditions of said plurality of sensors;

    comparing and determining means for comparing said sampled bit-pattern with said stored bit-patterns and for determining whether said sampled bit-pattern corresponds to a physically possible or a physically impossible switching condition of said plurality of sensors;

    measuring means connected to said output of a predetermined one of said acceleration sensors for measuring whether said individual acceleration threshold value of said one predetermined acceleration sensor is exceeded;

    suppressing means connected to said comparing and determining means and to said measuring means for deactivating said measuring means when said sampled bit-pattern corresponds to a physically impossible switching condition of said plurality of sensors.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×