انا من الجزائر ابحث عن جهاز صغير ديكتار صغير ممكن اتحصل عليه اوكيف اوريد الراد من فضلك اخي
من الميزات المفيدة القدرة على ضبط التاريخ والوقت لمطابقة التاريخ والوقت الحقيقيين ، ويحتفظ جهاز كونكورد بهذه القيم حتى في حالة إيقاف تشغيله.
As a result of eddy currents induced within the metal, a sign is detected when metal is present. The fact that each and every metallic has a distinct phase response when exposed to alternating existing allowed detectors to differentiate amongst metals. Longer waves (small frequency) penetrate the bottom further and choose for prime conductivity targets like silver and copper, though shorter waves (better frequency) pick out for small conductivity targets like iron.
If the goal of these use may be the search for archaeological remains, prior authorization is needed from my products and services. In addition to this situation, the regulation check with to become described to the appropriate authorities an accidental discovery of archaeological stays." The entire letter of Jack Lang was released in 1990 inside of a French steel detection magazine,[22] after which you can, to generally be seen on the internet, scanned with permission in the writer of your magazine with a French metallic detection Web site.[23]
بفضل ميزاته المتقدمة وسهولة استخدامه، يُعد جهاز جولد ليجند خيار مثالي للباحثين عن الذهب من جميع مستويات الخبرة.
احفظ اسمي، بريدي الإلكتروني، والموقع الإلكتروني في هذا المتصفح لاستخدامها المرة المقبلة في تعليقي.
يمكن أن يكون هذا الخيار مفيدًا لتوفير طاقة البطارية عند ضبطها على قيم منخفضة
لن يتم نشر عنوان بريدك الإلكتروني. الحقول الإلزامية مشار إليها بـ *
This gave greater depth, but was a non-discriminate mode. It worked greatest at lessen frequencies than These utilised just before, and frequencies of 3 to twenty kHz ended up identified to generate the ideal benefits. Many detectors within the nineteen seventies had a change which enabled the user جهاز كشف المعادن تحت الارض to modify between the discriminate mode along with the non-discriminate method. Later on developments switched electronically concerning the two modes. The development in the induction balance detector would in the long run bring about the movement detector, which continually checked and well balanced the qualifications mineralization.
If the search coil detects metal objects, جهاز الكشف عن المعادن والذهب the system offers an audible sign via speaker or earphone. For most models, the opinions is undoubtedly an analog or electronic indicator.
صمم هذا الجهاز كي يتلائم عمله في جميع البلدان وﺍﻷﻗـــﺎﻟﻴﻢ
بفضل التقنية المتطورة للجهاز يمكن بسهولة تحديد عمق وشكل ونوع وحجم الهدف بدقة شديدة.
Two electro-magnetically tuned coils ended up Utilized in this technique. Just one coil serves being an RF transmitter, even though the other serves as being a receiver; in certain predicaments, these coils can be tuned to frequencies ranging from three to 100 kHz.
وضع الشاطئ: مخصص للبحث عن الذهب في الرمال الرطبة على الشواطئ.