How do you make a metal detector circuit diagram?
How do you make a metal detector circuit diagram?
Components Required
- 1 x TDA0161 Proximity Detector IC.
- 2 x 47nF Capacitors (Ceramic Capacitor code 473)
- 1 x 1 KΩ Resistor (1/4 Watt)
- 1 x 330 Ω Resistor (1/4 Watt)
- 1 x 100 Ω Resistor (1/4 Watt)
- 1 x 5 KΩ Potentiometer.
- 1 x 2N2222A (NPN Transistor)
- 1 x 5V Buzzer.
How does a metal detector circuit work?
A metal detector is an electronic device that comprises of an oscillator which generates an AC current that passes via a coil generating an alternating magnetic field. When a part of the metal is nearby to the coil, eddy current will be induced in the metal object & this generates a magnetic field of its own.
What are the components of a metal detector?
An industrial metal detector consists of four main components: the sensor, the control, the signal processor, and the output device. The sensor will react to the proximity of metal. The reaction of the sensor is transmitted to the filter, an electronic device that interprets the sensor signal.
What is metal detector project?
Abstract. The main aim of the project is to detect the metal near by to the sensor. Whenever the metal is brought near the sensor (inductor) a buzzer is produced from the speaker and whenever the metal is removed the sound is switched off.
Which sensor is used in metal detector?
Inductive proximity sensors
Inductive proximity sensors can only detect metal targets. They do not detect non-metal targets such as plastic, wood, paper, and ceramic. Unlike photoelectric sensors, this allows a inductive proximity sensors to detect a metal object through opaque plastic.
How does a metal detector work RLC circuit?
The metal detector sensor is used to detect nearby metal. It is based on a beat frequency oscillator (BFO) design. An RLC circuit is amplified so that it resonates at a specific frequency. When metal comes into proximity of the search coil, the inductance and the frequency change.
How do I turn my phone into a metal detector?
With an Android app called Metal Detector (by Smart Tools), you can turn your Android phone into a metal detector. Using the app might just help you find those small metal objects before you accidentally step on them or before they get sucked up into your vacuum cleaner.
What is the best frequency for a metal detector?
The best frequency for metal detecting is somewhere in the range of 5 kHz to 15 kHz. This range is where most general-purpose metal detectors are tuned too, and also the easiest to manage for beginners.
What is W in RLC circuit?
An RLC circuit is an electrical circuit consisting of a resistor (R), an inductor (L), and a capacitor (C), connected in series or in parallel. The name of the circuit is derived from the letters that are used to denote the constituent components of this circuit, where the sequence of the components may vary from RLC.
What do you mean by metal detector sensor?
Metal detector sensor is referring to a special sensor or tools used in metal detectors that contains special designed circuits for detecting of metallic objects underground. Metal detector sensor maybe a search coil as in electromagnetic metal detectors,
Can a circuit be made for a metal detector?
Metal detectors can be created easily and the circuit for a basic metal detector is not that complex. In this project, we have designed a simple DIY type Metal Detector Circuit using very simple components that can be used in our homes and gardens. The following image shows the circuit diagram for the metal detector circuit.
How is a variable resistor used in a metal detector?
Variable resistor is used to change the proximity sensor value equal to the LC circuit, it is better to check the value when there is coil not near to the metal. When the metal is detected the LC circuit will have changed signal.
What are the different types of metal detectors?
There are different types of metal detectors like hand held metal detectors, walk through metal detectors and ground search metal detectors. Metal detectors can be created easily and the circuit for a basic metal detector is not that complex.