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CISBO Sensors
I have been experimenting with the set up of the sensors a bit more. The sensors have been fitted 55cm above the ground on my rear bumper. A web site for these sensors states 50cm should be adequate but that they have been successfully fitted in some applications 40cm above ground. So I thought that I had little chance of them hitting off the ground and producing spurious signals.
Once fitted they were pointing ever so slightly downwards (due to the profile of the bumper) so I fitted the angle spacers to bring them up a bit. Still failed to function properly though. Even with the angle spacers they still looked as though they were pointing a couple of degrees below the horizontal so I pulled them out a bit and packed some blu-tac under the bottom edge so that they are now pointing a couple of degrees above the horizontal.
So far they seem to have settled down and are working more or less as they should. However one thing I have noticed is that when the road surface is damp they seem more prone giving false readings.
I shall continue with the blu-tac for a while and if successful for a few more days I shall seek a more permanent solution to raising angle at which they point.
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