Sunday, 23 September 2007

Leak detector

This is something I have been thinking about for a while. An audible alarm to detect the first few drops of water entering the housing would provide an extra safety factor against killing the camera.

A simple design by Glen Cowan in Sportdiving Issue 94 Oct/Nov 2002 provided the info.

The bare wire detector tips are in the corner that would collect water given the way my camera hangs most of the time and there was plenty of room between camera and housing on the left side. Let's hope it works but I will still be looking closely as the housing submerges.

1 comment:

  1. You could easily form a detecting wire into a line, instead of checking in just one corner of the casing. Extend the double wire to both the front and back side of the casing. Keep the gap uniformly wide by leaving the rings of insulation every 2 cm, use LEDs for warning (alone or with the buzzer).