Recent content by boreholelogger

Hi pearson30, contact Matt Edmonds from Auslog Pty Ltd, he should be able to help you out. We have already sold a few of them in the minerals industry. Although our budget and management never let us continue working on it to make the cable marker Automatic. Although I don't perceive that...

The magnetic field that is induced in the cable is approximately 2 - 4 Gauss at the edge of the cable which is about 4 - 8 times the earths magnetic field (0.5 Gauss), so the effect would be negligible, if any at all. You have to dramtically amplify the signal received from the sensor to be able...

Sorry I missed your point. Yes we normally use encoders for desert work and other non-icy and non-muddy work and they are quite good. Although in the freezing areas, like northern Canada and Russia. The Ice freezes on the cable as it comes out of the wet, warmer boreholes and then builds up on...

Ah yes I see what you mean't now. An encoder for measuring the amount of cable that has past over the V pulley's. Yes I am using a US Digital optical encoder, they are quite good and really inexpensive. They also let you know which direction the cable is moving using quadrature signals, which we...

That isn't how I would do it, but anyway. What do you mean by a follower would seem more convenient?.

Hi All, I had such an overwhelming response for this question.........he he. Anyway, I have since designed a system that can magnetically mark and un-mark steel geophysical logging cable at various intervals (wireline / oil & gas exploration / Minerals exploration / Borehole logging). I...

Active is the (+) connection and the neutral wire (-) usually ends up being connected to the ground stake at some point.

I hear Solidworks www.solidworks.com has really good electrical package out, but I am yet to try it. It may be worth looking at. I currently use Altium Designer 6.0.

Use Macromedia Flash, it is really easy to do.

Although the above sensors are not cheap. So that sort of throws out the $100 sensor idea...

Have you looked at www.sick.com? They have some good gear!.

I was wondering if anyone new where I could find some information on a system which I have heard exists, that magnetises sections of a wire-line cable (Steel Cable). For example magnetises a small section on the cable every 10ft. The cable is then winched in and out of a muddy hole in the...

If I were you, I would get a hold of your electrical engineers CAD software and go through all the components that he/she uses the most one by one and search for a description of each component on the internet. At least if you have the software it will give you the electrical name of the...

Yes I see your point itsmoked. It just crossed my mind and I thought it may be an issue. But there are not alot of options with this type of cable and application.

Ok well for now DSl over power is out of the question as the management wants it working ASAP!. Thus no time to implement it for this prototype. So far we have concluded that there is going to be only two options. 1. Use one wire as the power wire and another as the return (Large loss but...