One of the main components I need to obtain now includes an amplifier chip.  I already have the ADC, DAC and pH chips.

Next steps:

• Assemble prototype using the above parts!
• Test ultrasound pulses are being correctly generated using oscilloscope
• Program FPGA using VHDL in order to monitor returned pulses
• Build chamber (out of a drainpipe!)
• Complete schematic design
• Get PCB fabricated!
• Assemble PCB