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Capacitor sensors and system and methods for non-contact object detection

  • US 9,068,816 B2
  • Filed: 11/22/2011
  • Issued: 06/30/2015
  • Est. Priority Date: 11/22/2011
  • Status: Active Grant
First Claim
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1. A non-contact object detection system comprising:

  • (a) a capacitor sensor; and

    (b) a control system, the control system providing an Adaptive Excitation Signal (AES) to the capacitor sensor, the AES configured according to a power closure system including a proximity based speed control algorithm in which the capacitor sensor is deployed;

    wherein the capacitor sensor provides a detection voltage to the control system when an object is in the detection area and the AES configured to produce a threshold voltage from the capacitor sensor to the control system in the power closure system when an object is not in a detection area of the capacitor sensor;

    wherein the control system is configured to execute instructions for automatically configuring the AES, the instructions including a module for determining whether the threshold voltage is within an upper baseline limit and a lower baseline limit of the capacitor sensor and adjusting the AES according to the power closure system to achieve a desired base line profile to be within upper and lower limits.

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