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A few years ago, on this forum, I talked with participant Roderico on the topic of the target identifier, described the required tasks from the indicator, according to the principle of determining non-ferrous or ferrous metal. Roderico wrote the firmware, etc. But something prevented all this from being...Yesterday, 09:50 AM
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Would this circuit topology work for such a task. In this circuit, Vout is proportional to V1*V2. The F.E.T's conductance are matched to within+\-5%
Can the circuit can be tweaked for X and R channel inputs to give target information.
What do you think? This circuit is featured...05-01-2025, 03:58 PM
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I came across this page "Pulse induction metal detector with DSP" by Lammert Bies.
https://www.lammertbies.nl/electroni...metal-detector
It includes this diagram of three decay curves :
- no target
- ferro target
- non ferro target
...04-23-2025, 01:25 PM -
Announcing the FPGA based UNIPI system ( I call it a system because it has more than 1 chip ).
Brief hardware specs
6 X 24 bit ADC channels ( independant not multiplexed ) with programmable gain amplifiers and differential inputs.
6 X 12 / 24 bit DAC depending on required...01-23-2012, 11:54 PM -
Hello ,this is my aportation for this 2011 year for all my friends of the Geotech Forum...
It is about the legendary BARACUDA...yes i have bought with a good LUCK a 2 hand old model from 1994 ...i test it very nice ...detect in air= alum.coca can at 65 cm very well and gold ring (20mm)...01-28-2011, 02:19 AM -
Would this circuit topology work for such a task. In this circuit, Vout is proportional to V1*V2. The F.E.T's conductance are matched to within+\-5%
Can the circuit can be tweaked for X and R channel inputs to give target information.
What do you think? This circuit is featured...05-01-2025, 03:58 PM