Fiber optic sensor for detection of cardiac magnetic field

Raymond D. Rempt; Ceon Ramon

doi:10.1117/12.144838

21 May 1993 Fiber optic sensor for detection of cardiac magnetic field

Raymond D. Rempt, Ceon Ramon

Proceedings Volume 1886, Fiber Optic Sensors in Medical Diagnostics; (1993) https://doi.org/10.1117/12.144838
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States

Abstract

A fiber optic magnetic gradiometer has been successfully configured to detect the cardiac magnetic field. The gradiometer is comprised of a Mach Zehnder interferometer, with extremely thin transducers to allow placement of the sensor very near to the chest of a human subject. The sensor detects the cardiac magnetic field in real time, and demonstrates good fidelity in both the time and frequency domains, with only a low pass filter used for signal processing. To our knowledge, this is the first detection of a biomagnetic signal with an optical sensor.

Citation Download Citation

Raymond D. Rempt and Ceon Ramon "Fiber optic sensor for detection of cardiac magnetic field", Proc. SPIE 1886, Fiber Optic Sensors in Medical Diagnostics, (21 May 1993); https://doi.org/10.1117/12.144838

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