Tilt Sensing Circuit. I am looking to build a small, battery powered tilt sensing circuit-on a small board-that can detect when the object it is mounted to deviates by some set limit off of vertical. I have built a crude prototype with a mercury switch built it is much to bulky and "stone...
Horizontal Tank Standards. Where do you find manufacturing standards for horizontal storage tanks. It appears to me that API 650 pertains to vertical tanks.