Fluid level sensor and related methods
First Claim
Patent Images
1. A fluid level sensor comprising:
- a nozzle;
a fluid channel;
a sensor plate on a floor of the channel;
a current source coupled to the sensor plate to induce a voltage across the sensor plate; and
a sensor circuit to determine a voltage response of the sensor plate to the current source, the voltage response indicating whether fluid is present on the sensor plate.
1 Assignment
0 Petitions
Accused Products
Abstract
In an embodiment, a fluid level sensor includes a sensor plate and a current source. The fluid level sensor also includes an algorithm to bias the current source such that current applied to the sensor plate induces a maximum difference in response voltage between a dry sensor plate condition and a wet sensor plate condition.
19 Citations
18 Claims
-
1. A fluid level sensor comprising:
-
a nozzle; a fluid channel; a sensor plate on a floor of the channel; a current source coupled to the sensor plate to induce a voltage across the sensor plate; and a sensor circuit to determine a voltage response of the sensor plate to the current source, the voltage response indicating whether fluid is present on the sensor plate. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18)
-
Specification