An alkali vapour magnetometer using integrated circuits

Details An alkali vapour magnetometer using integrated circuits An alkali vapour magnetometer using integrated circuits

Nov 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975ssi.....1..471s&link_type=abstract

Space Science Instrumentation, vol. 1, Nov. 1975, p. 471-492. Research supported by the Australian Research Grants Committee, Nu

Computer Science

Performance

Cesium Vapor, Integrated Circuits, Magnetometers, Optical Pumping, Crystal Oscillators, Design Analysis, Digital Systems, Geomagnetism, Self Oscillation, Systems Analysis, Vibration Mode, Voltage Regulators

Scientific paper

An optically pumped alkali-vapor magnetometer has been constructed which utilizes cesium vapor as the resonant element in the self-oscillator mode of operation. This instrument is capable of monitoring anomalies and fluctuations in the magnetic field with a sensitivity of 0.01 nT over the range of the earth's field (24-75 microteslas). The complete circuits for the self-oscillating loop and auxiliary electronics are described. Details of a counting system suitable for direct numeric readout in magnetic-field units and another rapid counter for high-resolution automatic digital, analog, and magnetic-tape recording are presented. A summary is given of performance specifications of the described instrument.

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