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Metal Detectors
Minelab
Minelab SDC2300 information and questions
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<blockquote data-quote="SteelPat" data-source="post: 244260" data-attributes="member: 4467"><p>I think Steve's speculation is pretty close but I personally think there is more to the story. The Multi Period bit in the MPS means there may be many TX pulses or perhaps many samples for the one pulse (which I think is more probable). Perhaps they vary the TX pulse width over a time period. There doesnt seem to be much info out on the SDC compared to the 7000. Perhaps its just a more tight spec machine where sampling is a lot closer to tx turn off. </p><p></p><p>In some of my experiments I managed to get a sampling delay close to 4us. It certainly helped in detecting very small targets.</p><p></p><p>I am currently working on my own version of a SDC using a microcontroller so I can experiment with different TX and sample times. Its a follow on of a machine I was working on before the 7000 came out. Once I got the 7000 I didnt see the point of continuing to try to build a similar machine. I am scaling down the coil size and seeing if I can get similar results to the SDC. I dont need as much power as I was going to use on the other machine so it will be a lot lighter than my original design.</p></blockquote><p></p>
[QUOTE="SteelPat, post: 244260, member: 4467"] I think Steve's speculation is pretty close but I personally think there is more to the story. The Multi Period bit in the MPS means there may be many TX pulses or perhaps many samples for the one pulse (which I think is more probable). Perhaps they vary the TX pulse width over a time period. There doesnt seem to be much info out on the SDC compared to the 7000. Perhaps its just a more tight spec machine where sampling is a lot closer to tx turn off. In some of my experiments I managed to get a sampling delay close to 4us. It certainly helped in detecting very small targets. I am currently working on my own version of a SDC using a microcontroller so I can experiment with different TX and sample times. Its a follow on of a machine I was working on before the 7000 came out. Once I got the 7000 I didnt see the point of continuing to try to build a similar machine. I am scaling down the coil size and seeing if I can get similar results to the SDC. I dont need as much power as I was going to use on the other machine so it will be a lot lighter than my original design. [/QUOTE]
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Metal Detectors
Minelab
Minelab SDC2300 information and questions
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