Exposed metal loop to detect corrosion in a data storage device
AssigneeWestern Digital Technologies, Inc.
InventorsAmit Vijayvargiya, Subha Sekhar, Anoop Thomas
Life of this patent
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Abstract
A corrosion detection system for a data storage device includes an exposed metal loop provided on a PCB of the data storage device. The corrosion detection system periodically measures an inductance of the exposed metal loop and compares the measured inductance to a reference inductance. If a difference between the measured inductance and the reference inductance exceeds a threshold, the corrosion detection system determines the data storage device is exposed to a corrosion risk and notifies a host device.
Claims20
A method, comprising:
- receiving an inductance measurement associated with an exposed metal loop provided on a surface of a printed circuit board (PCB);
- comparing the inductance measurement to a reference inductance measurement associated with the exposed metal loop;
- determining whether the difference between the inductance measurement and the reference inductance measurement exceeds a threshold;
- based, at least in part, on determining the difference between the inductance measurement and the reference inductance measurement exceeds the threshold, generating a notification;
- and
- providing the notification to a host device.
A data storage device, comprising:
- a controller;
- and
- a corrosion detection system communicatively coupled to the controller and comprising:
- an induction measurement system that measures an inductance of an exposed metal loop provided on a printed circuit board (PCB) of the data storage device;
- and
- a messaging system that generates a notification based, at least in part, on a determination that a difference between an inductance measurement and a reference measurement exceeds a threshold.
An electronic device, comprising:
- a controller means;
- and
- a corrosion detection means communicatively coupled to the controller means and comprising:
- an induction measurement means that:
- measures an inductance of an exposed metal loop located on a printed circuit board (PCB) of the electronic device;
- and
- compares the inductance of the exposed metal loop to a reference inductance measurement;
- and
- a messaging means that generates a notification based, at least in part, on a determination that a difference between the inductance measurement and the reference inductance measurement exceeds a threshold.
Dependencies are inferred from the claim text.