Cost of a metal detector The price of the metal detector 'Terminator' is inmiddle range. Reduce the damage and avoid additional problems by replacing the sound chip with a domestic analogue. Of course, you can use the domestic logic to create the device, but this threatens with too much variation in parameters. The disadvantage of this is the extra noise and unknown KU of all the chips. Non-standard application of logic as an op ampis the basis of the scheme of the metal detector. Metal Detector Scheme By its design, the metal detector 'Terminator3 'is a standard coin that underwent some changes that allowed it to detect gold and ignore other non-ferrous metals.With the use of the scheme with a special regime of' all metals ', the device can search for any scrap metal. Find suitable software designed for such purposes, you can on the Internet. To save money, many users prefer to limit themselves to a virtual measuring system based on a personal computer. When you purchase the entire set formetal detector will have to pay a tidy sum. Assembling a metal detector To assemble and adjust the metal detector you will need the following equipment: Separately it is worth mentioning the discrimination of the metal detector 'Terminator 3' by many users, which is completely unfair: unlike its analogues, which can determine only the depth of occurrence of an object, this model determines the metal from which the object is made. NA At the temperature extremes 250 IB Input bias current VO = 1.4 V, VCM = 0 V TA = 25✬ 10 250 nA At the temperature extremes 400 IS Supply current RL = open, VS = 5 V 0.25 0.7 mA RL = open, VS = 30 V 0.3 2 IO Output sink current VIN+ = 1 V, VIN−= 0 V, VO = 1.5 V 6 13 mA ILEAKAGE Output leakage current VIN+ = 1 V, VIN−= 0 V, VO = 5 V 0.1 nA.Īll of the above parameters are calculated for sensorswith 240 mm on the wire and chernozem soil. Depth of detection The search for a metal detector of coins and other items can be carried out at different depths: It will be really difficult to do this kind of work, but do not be scared: just carefully prepare for the process and collect all the necessary details and elements. It is worth noting immediately what to assemble with your own handsThe metal detector will be very difficult for those who have never been interested in such equipment before.
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