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Pressure sensor and wearable device

  • US 20190331539A1
  • Filed: 06/06/2017
  • Published: 10/31/2019
  • Est. Priority Date: 01/23/2017
  • Status: Active Grant
First Claim
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1. A pressure sensor, comprising:

  • a circuit board (1), which comprises an electrode area (11), wherein the electrode area (11) comprises multiple electrode pairs (10) set at intervals; and

    a conducting elastic structure (2), which is set on one side of the circuit board (1) and comprises a first area (21);

    the first area (21) comprises a conducting part;

    when no pressure is applied to the conducting elastic structure (2), the conducting part is isolated from each electrode pair (10), so that each electrode pair (10) is in an off state;

    when a pressure which is greater than a turn-on pressure threshold is applied to the conducting elastic structure (2), the conducting elastic structure (2) deforms, so that the conducting part contacts with at least one electrode pair (10), and at least one electrode pair (10) is turned on;

    wherein the turn-on pressure thresholds of different electrode pairs (10) are different.

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