Pressure sensor
View Patent ↗A pressure sensor includes a sense element port, a support ring and a plurality of interference fit slits to provide a flexible interference fit between the sense element port and the support ring to form a substantially flush lap joint. The sensor also includes an electronics board inside the support ring and attached to planar mounting tabs which provide a stable mounting. Gel flow barriers protect electronics board features from unwanted non-conductive gel. Double-ended symmetrical, tapered contact springs provide manufacturing cost savings and contribute to improved alignment of an interface connector of the sensor.
1. A gel flow barrier on an electronics board comprising a moat having at least one wall forming at least one trench to redirect a gel flow around a contact pad on the electronics board to be excluded from the gel flow and the moat at least partially surrounding the contact pad, the moat including a top layer having a non-wetting surface with respect to the protective gel.
2. The gel flow barrier of claim 1 , wherein the moat further comprises a plurality of trenches and walls.
3. The gel flow barrier of claim 1 , wherein non-wetting surface is gold plated.
4. The gel flow barrier of claim 1 , wherein the electronics board is used in a sensor.