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21 May 1993 Fiber optic sensor for detection of cardiac magnetic field
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Proceedings Volume 1886, Fiber Optic Sensors in Medical Diagnostics; (1993)
Event: OE/LASE'93: Optics, Electro-Optics, and Laser Applications in Scienceand Engineering, 1993, Los Angeles, CA, United States
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.
© (1993) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
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);

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