A Novel Approach for Production and Study of Medical Ultrasound from Low-Cost Electromagnetic Transducers

Abstract

Medical ultrasound is generally produced via piezoelectric crystals, and the probes are quite costly, due to which overall cost of diagnosis and therapy increases immensely. Our aim was to develop a low-cost ultrasound probe. We thereafter successfully produced ultrasound from low-cost electromagnetic loud speakers available locally in the market. The presence of ultrasound was tested at a range of 40 kHz via resonating crystals at the receiver end, which was observed in a CRO. Using advanced Matlab programming the iterpolation was for the output ultrasound which was recived with respect to the input voltage from the frequency generator. The voltage level was calibrated with the output waveform amplitude, and a plot was obtained which can give exact values for desired ultrasound peak values. Significance of the 40 KHz frequency includes ultrasound-assisted photo catalysis of chemicals, such as methylene blue, and particle image velocimetry.