Seeking Experts for High-Tech Metal Detector Development
Budget: $250 – $750 USD
Technical Requirements and Technologies for Advanced Metal Detector Production
1. General Description
The device to be produced will be based on Pulse Induction (PI) metal detector technology. PI metal detectors work by sending short-duration magnetic pulses and detecting the eddy currents generated by target metals, providing depth information.
2. Technical Components and Technologies to Be Used
2.1. Electronic Components
Coil Design:
Mono-loop or Double-D (DD) configuration.
Variable inductance structure sensitive to different frequencies.
EMI protection and magnetic shielding.
Pulse Generator:
Circuit design capable of generating high-voltage, short-duration magnetic pulses.
Use of MOSFET or IGBT transistors for fast switching.
Analog Signal Processing:
Signal amplification with high-precision Op-Amp circuits.
EMI noise filtering (Low-pass, band-pass filters).
Use of a high-resolution ADC (Analog to Digital Converter) for processing weak signals.
Digital Signal Processing (DSP):
Microcontroller- or FPGA-based signal processing.
Integration of metal discrimination and ground balance algorithms.
Ground Balance:
Automatic and manual adjustment mechanisms that filter out false signals caused by mineralized soils.
Digital adaptive filtering techniques to adapt to dynamic soil conditions.
Sensor fusion technology for automatic calibration and ground analysis.
Power Supply and Energy Management:
High-efficiency Li-ion battery management.
Selection of low-power microcontrollers and components.
User Interface:
LCD or OLED screen integration.
Audio and vibration alert systems.
2.2. Required Software Technologies
Microcontroller Programming:
Embedded system development using C/C++.
RTOS or bare-metal coding for timing and metal discrimination algorithms.
DSP and Signal Processing Algorithms:
Fourier Transform (FFT) and filtering techniques.
Statistical analysis for noise reduction and target identification.
Electromagnetic Interference Reduction (EMI Reduction):
Software and hardware solutions that minimize the impact of environmental electromagnetic noise on the detector.
Integration of active and passive noise suppression algorithms.
Implementation of Frequency Shifting and adaptive signal processing techniques.
Embedded System Interface:
Serial communication protocols (I2C, SPI, UART).
User-friendly menu and control systems.
2.3. Manufacturing and Testing Processes
PCB Design and Production:
PCB development using Altium Designer, KiCad, or Eagle.
SMD assembly processes.
Hardware Testing and Calibration:
Prototype testing and debugging.
3. Job Description and Requirements
Experience in electronics engineering, embedded systems, or RF technologies.
Expertise in PCB design and embedded system software development.
Knowledge of signal processing and algorithm development.
In-depth understanding of RF and electromagnetic theory.
Expertise in EMI reduction and ground balance systems.
1. General Description
The device to be produced will be based on Pulse Induction (PI) metal detector technology. PI metal detectors work by sending short-duration magnetic pulses and detecting the eddy currents generated by target metals, providing depth information.
2. Technical Components and Technologies to Be Used
2.1. Electronic Components
Coil Design:
Mono-loop or Double-D (DD) configuration.
Variable inductance structure sensitive to different frequencies.
EMI protection and magnetic shielding.
Pulse Generator:
Circuit design capable of generating high-voltage, short-duration magnetic pulses.
Use of MOSFET or IGBT transistors for fast switching.
Analog Signal Processing:
Signal amplification with high-precision Op-Amp circuits.
EMI noise filtering (Low-pass, band-pass filters).
Use of a high-resolution ADC (Analog to Digital Converter) for processing weak signals.
Digital Signal Processing (DSP):
Microcontroller- or FPGA-based signal processing.
Integration of metal discrimination and ground balance algorithms.
Ground Balance:
Automatic and manual adjustment mechanisms that filter out false signals caused by mineralized soils.
Digital adaptive filtering techniques to adapt to dynamic soil conditions.
Sensor fusion technology for automatic calibration and ground analysis.
Power Supply and Energy Management:
High-efficiency Li-ion battery management.
Selection of low-power microcontrollers and components.
User Interface:
LCD or OLED screen integration.
Audio and vibration alert systems.
2.2. Required Software Technologies
Microcontroller Programming:
Embedded system development using C/C++.
RTOS or bare-metal coding for timing and metal discrimination algorithms.
DSP and Signal Processing Algorithms:
Fourier Transform (FFT) and filtering techniques.
Statistical analysis for noise reduction and target identification.
Electromagnetic Interference Reduction (EMI Reduction):
Software and hardware solutions that minimize the impact of environmental electromagnetic noise on the detector.
Integration of active and passive noise suppression algorithms.
Implementation of Frequency Shifting and adaptive signal processing techniques.
Embedded System Interface:
Serial communication protocols (I2C, SPI, UART).
User-friendly menu and control systems.
2.3. Manufacturing and Testing Processes
PCB Design and Production:
PCB development using Altium Designer, KiCad, or Eagle.
SMD assembly processes.
Hardware Testing and Calibration:
Prototype testing and debugging.
3. Job Description and Requirements
Experience in electronics engineering, embedded systems, or RF technologies.
Expertise in PCB design and embedded system software development.
Knowledge of signal processing and algorithm development.
In-depth understanding of RF and electromagnetic theory.
Expertise in EMI reduction and ground balance systems.