Liquid exposure sensing device and controller
AssigneeNXP B.V.
InventorAxel Nackaerts
Life of this patent
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Abstract
One example discloses a liquid exposure sensing device, including: a first sensor configured to be coupled to a reference material; wherein the first sensor configured to generate a first signal in response to either a liquid phase and/or vapor phase of a substance passing through the reference material; a second sensor configured to be coupled to an exposed material; wherein the second sensor configured to generate a second signal in response to the liquid phase and/or vapor phase of the substance passing through the exposed material; and a controller coupled to the first and second sensors and configured to generate a liquid detection signal in response to a time delay between the first signal and the second signal that exceeds a threshold time delay.
Claims22
A liquid exposure sensing device, comprising:
- a first sensor configured to be coupled to a reference material;
- wherein the first sensor configured to generate a first signal in response to either a liquid phase and/or vapor phase of a substance passing through the reference material;
- a second sensor configured to be coupled to an exposed material;
- wherein the second sensor configured to generate a second signal in response to the liquid phase and/or vapor phase of the substance passing through the exposed material;
- and
- a controller coupled to the first and second sensors and configured to generate a liquid detection signal in response to a time delay between the first signal and the second signal that exceeds a threshold time delay.
A liquid exposure controller circuit, comprising:
- a controller circuit configured to be coupled to first and second sensors;
- wherein the first sensor is configured to be coupled to a reference material, and to generate a first signal in response to either a liquid phase and/or vapor phase of a substance passing through the reference material;
- wherein the second sensor is configured to be coupled to an exposed material, and to generate a second signal in response to the liquid phase and/or vapor phase of the substance passing through the exposed material;
- and
- wherein the controller circuit is configured to generate a liquid detection signal in response to a received time delay between the first signal and the second signal that exceeds a threshold time delay.
Dependencies are inferred from the claim text.