Analog front end stage of a fiber optic magnetic field point scanner

Fiber optic Faraday magnetic field scanners are sophisticated sensing devices whose important part is electronic signal processing block. This paper presents some aspects of a design of an AFE (Fig. 2) for FOFMS that meets these requirements. Electronic section containing the AFE has been constructed and implemented into electronic processing section containing analog to digital conversion (ADC). This unit has been integrated into a sensor and used to collect and process data in order to asses the sensor performance figures.