CS Optical Pumping Magnetic Sensor Spectrum Lamp Drive Circuit Design Based on PI Feedback Controller

Abstract:

The optical source is one of the key components for the optical pump magnetic field sensor, its spectral width, stability and emission intensity directly related to the sensitivity of the sensor. The CS Spectral Lamp drive signal source was produced by crystal oscillator and amplified by the power controllable RF power amplifier. For achieving the aim of luminous intensity controllable and more stability, the reference controllable analog PI negative feedback control measures were used in the drive circuit. Contrast experimental result show that: the emission intensity of CS spectrum lamp is more stable and less affected by temperature if using the drive circuit which discussed in this paper.

• Periodical: Applied Mechanics and Materials (Volumes 568-570)
• Pages: 473-477
• DOI: https://doi.org/10.4028/www.scientific.net/AMM.568-570.473
• Online since: June 2014
• Authors: Chao Tan, Li Fang, Xue Bai
• Keywords: CS Optical Pumping Magnetometer, CS Spectrum Lamp, Negative Feedback, Proportion Integration Controller, RF Power Amplifier

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