Pulse Induction Metal Detector Circuit Diagram

Pulse induction pi metal detectors are sending repeated pulses of electrical current to the search coil producing a magnetic field.

Pulse induction metal detector circuit diagram. Breakdown effect over the driver mosfet. The power supply four ic s the pulse generation circuit four 555 s and coil. The is accomplished by closing the bipolar power transistor or mosfet that connects the coil with the power supply. Schematic diagram of white s surfmaster pi metal detector a good quality simple pi pulse induction design with an affordable price.

Pulse induction metal detector with greenpak. The operation of metal detectors is based upon the principles of electromagnetic induction. There is a video that shows you how the metal detector works and there is a diagram on how to assemble the circuit. Figure 2 block diagram of the pulse 1 metal detector the basic design of the metal detector consists of four parts as seen above.

The greenpak pulse induction metal detector design. The coil transmits a pulse toward the ground generating an answering pulse from the target object. I was delighted to find several schematics for pulse induction vlf and cco detectors on the geotech forum. A sampling circuit measures the pulse and sends it to an integrator which generates an audio tone.

Detects all metallic objects with unbelievable depth and sensitivity on the hardest to hunt black sand beaches and in wet salt. A block diagram of the circuit can be seen in figure 2. Pulse induction metal detector part 2 pdf metal. White s surfmaster pi pulse induction metal detector schematic diagram.

The single coil detector illustrated below is a simplified version of one used in a real metal detector. Metal detectors contain one or more inductor coils that are used to interact with metallic elements on the ground. Pulse induction designs have the advantage of tolerance to ground effects and work even when submerged in water. The detection cycle of pulse induction metal detectors starts right after the magnetic field has been turned of.

The proximity detector ic tda0161 based metal detector circuit is a very simple and easy to construct metal detector that can be used to detect small metals in our homes offices and gardens. Are you looking for a plan to build a pulse induction metal detector. A pulse induction pi metal detector can be very easily implemented with a single greenpak configurable mixed signal ic cmic. You can hot glue the circuit inside an old toothpaste case.

The discharge graph of the coil can be divided in three sections. Simple metal detector based on a pic12f683.