کد مقاله کد نشریه سال انتشار مقاله انگلیسی ترجمه فارسی نسخه تمام متن
7121085 1461465 2018 5 صفحه PDF سفارش دهید دانلود کنید
عنوان انگلیسی مقاله ISI
Noise analysis and improvement of a micro-electro-mechanical-systems fluxgate sensor
ترجمه فارسی عنوان
تجزیه و تحلیل سر و صدا و بهبود یک سنسور فلکسگیت میکرو الکترومکانیکی
موضوعات مرتبط
مهندسی و علوم پایه سایر رشته های مهندسی کنترل و سیستم های مهندسی
چکیده انگلیسی
An integrated micro solenoid fluxgate sensor with a Co-based amorphous core is presented in this work based on the Micro-Electro-Mechanical System (MEMS) technologies. As the advantage of miniaturization, the micro fluxgate sensor is found to be operated under wide excitation frequency range of 100 kHz-1 MHz. Ultra-low frequency noise (<0.1 Hz) always arises in zero field time-domain signal acquisition under full excitation frequency range. An additional broadband transformer is placed before the excitation end of the sensor to eliminate the ultra-low frequency noise. The noise power density of the sensor working at 600 kHz is analyzed. The result shows the noise is 1.15 nT/Hz1/2@1 Hz without the transformer and 0.11 nT/Hz1/2@1 Hz with the transformer, while the noise rms level is 5.38 nT and 0.23 nT in the frequency range of 50 mHz-10 Hz respectively. For the MEMS micro fluxgate sensor, more stringent electromagnetic compatibility design for the sensor signal system is needed to eliminate additional noise derived from the electromagnetic radiated interference and the voltage disturbance.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Measurement - Volume 122, July 2018, Pages 1-5
نویسندگان
, , ,