Symmetrical core improves micro-fluxgate sensors
نویسندگان
چکیده
Microfluxgate sensor with flat coil and double-sided symmetrical core has significantly improved parameters over the original asymmetric single-sided core design. The magnetic circuit of the new sensor is more closed and so the core is deeper saturated. The sensor hysteresis was decreased from 30 μT to 2.5 μT (for full range). Noise level was decreased from 242 nT to 27 nT rms (0.1 mHz to 10 Hz.). The sensor linear range was extended from 600 μT to 1 mT. Perming was reduced from 50 μT to 5 μT after the field shock of 6 mT.
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تاریخ انتشار 2000