Pi Metal Detector Circuit Diagram

Figure 2 block diagram of the pulse 1 metal detector the basic design of the metal detector consists of four parts as seen above.

Pi metal detector circuit diagram. Pulse induction metal detector part 2 pdf metal. The power supply four ic s the pulse generation circuit four 555 s and coil. A block diagram of the circuit can be seen in figure 2. A detailed examination of the chosen schematics and the function of each component is examined and explained as well as explanations for certain choices of component values.

When a metal object nears the loop it will decrease time it takes for the pulse to decay to zero. Next attiny13 uses an analog comparator to measure a decay time to zero of resonant circuit. Coil 0 4 06 diameter magnet wire 18 turns 20 cm diameter power supply test supply two 9volt batteries in parallel. Presented metal detector uses pi method to generate a voltage spike in a search coil connected in parallel with capacitor.

The theory behind how a basic pi metal detector works is examined along with the basic details of a readily available design for a detector. A distinctive feature of this device is the low operating frequency. Schematic diagram of white s surfmaster pi metal detector a good quality simple pi pulse induction design with an affordable price. Metal detector circuit diagram the metal detector is a relatively simple device an electronic circuit that provides good sensitivity and stability.

Detects all metallic objects with unbelievable depth and sensitivity on the hardest to hunt black sand beaches and in wet salt. This metal detector the pirate was originally designed by this russian forum it s a pulse induction pi type detector. Heathkit groundtrack gr 1290 vlf metal detector circuit diagram and detector coil construction notes. Metal detector coil operates at a frequency of 3 khz.

Basic components ne555 tl072 irf 630 bc 547 bc557 the rest of the components are the same as in the schematic.