I want to design metal detector circuit & detection coil specification is given below.
multi frequency & phase angle detection.
It can detect ferrous and non ferrous both metal(ex iron, aluminum, steel).
Digital out put hi when metal object detected.
It is able to detecting small (1sq mm ferrous & 1.4sq mm non-ferrous) metal objects or smaller if possible.
sensitivity adjustment fine & coerce port
phase angle adjust port
It can show detected metal object area(analogue op 0-5V).optional if possible
I also need all design data circuit schematic with component value, programming.
YouTube video for reference:
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hi .I have more than 8 years experienced in circuit design and development..in my past I have designed lot of product for company..[login to view URL] design best way without emiemc