Ultrasonic Transducer AFE / Pulser-Receiver Electronics Development -- 2
USD 250–750
About the project
Objective: The goal is to design and develop functional prototype AFE(Analog Front End)/pulser-receiver system that can directly interface with any raw underwater transducer (200KHz to 1MHz) and deliver full echo-profile data to a Raspberry Pi. Description: I am looking for an experienced analog electronics / ultrasonic / sonar engineer to design and develop (physical device) a custom electronics board (AFE) to interface with a raw underwater ultrasonic transducer. The board will interface directly with a raw piezoelectric ultrasonic transducer and provide the complete transmit and receive signal chain. The transducer we are using is: https://ultrans.en.made-in-china.com/product/yxYUzZhJhOpW/China-500kHz-Ultrasonic-Underwater-Acoustic-Transducer-Ranging-Transducer-Fishfinder-Transducers-Chirp-Transducers-Transducers-FYW-500-20B-for-Positioning.html The basic architecture is: Piezoelectric Ultrasonic Transducer ↔ TX/RX Front End ↔ ADC ↔ Raspberry Pi / Processor Required Electronics The AFE should include: 1. Transducer interface 2. Transmit / Pulser 3. Transmit/Receive switching 4. Receive Analog Front End 5. ADC / Data Acquisition 6. Digital interface 7. Trigger / timing Desired Output: For each transmitted ping, I want to obtain data similar to: Amplitude / signal strength vs. time or range (Full Echo Profile output). I need the complete Altium source files in addition to the Gerber files. Please provide the schematic source, PCB source/layout, Gerbers, BOM, pick-and-place files if applicable, and all design documentation. The PCB should be designed specifically for a ~500 kHz underwater piezoelectric transducer and must include the TX pulser, T/R protection/switching, low-noise receive AFE, filtering, ADC, timing/triggering, and interface to a Raspberry Pi for full echo-profile acquisition. I also need an assembled and tested prototype, not just manufacturing files. The freelancer will provide the following items: Gerber ZIP NC drill files Final BOM with manufacturer part numbers Pick-and-place/centroid file Assembly drawing Schematic PDF PCB layout PDF PCB source files (KiCad/Altium/etc.) 3D STEP model Fabrication/assembly notes DFM/DRC/ERC reports Firmware/programming requirements
Skills required
This job is listed on Freelancer.com. AiZity aggregates listings for discovery only and is not the employer. To bid or apply, use the button in the sidebar.