अमूर्त

Improvement of Sensitivity and Noise of a Fluxgate Magnetometer using Modified Firefly Optimization Algorithm

Oluyombo OW, Tekanyi AMS, Sani SM, Jimoh B

Measurements of the magnetic field of the Earth and low frequency magnetic field disturbance require a small size, highly sensitive, low noise, and stable magnetic sensor with directional capabilities. Fluxgate magnetometer design problems usually involve a large number of design variables with multiple objectives under complex nonlinear constraints. The methods for solving fluxgate multi-objective optimization problems can be significantly different from the methods for fluxgate single objective optimization. No matter how simple the problem may be, finding the optimal solution for a nonlinear multi-objective fluxgate optimization problem requires complex numerical effort. Meta-heuristic algorithms start to show their advantages in dealing with nonlinear multi-objective optimization problems. In this paper, the recently developed single-objective Firefly Optimization Algorithm (FOA) was modified to solve fluxgate multi-objective optimization problems. A complete magnetometer based on fluxgate principle for magnetic field measurement has been developed using a ferrite ring core with wire-wound excitation and pick-up coils. The fluxgate magnetometer consists of a fluxgate sensor with electronic circuitry based on second-harmonic detection. The sensing method is based on the conventional type of fluxgate magnetometer with detection of second harmonics by a phase sensitive detector. The sensor realized shows a linear full scale in the range of ±49.44µT with a sensitivity of 97.08mV/μT. In addition, when compared to the existing sensors, the modified FOA sensor exhibited a reduction of the core dimension by 38.9%, the reduction in the pick-up coil winding turns by 66%, increased magnetic field range by 64.8 %, and increased sensitivity by a factor of 8.5.

अस्वीकृति: इस सारांश का अनुवाद कृत्रिम बुद्धिमत्ता उपकरणों का उपयोग करके किया गया है और इसे अभी तक समीक्षा या सत्यापित नहीं किया गया है।

जर्नल हाइलाइट्स

अंकीय संकेत प्रक्रिया अतुल्यकालिक संकलन अधोचालकसंचालन अनुकूली संकेत संकेत अलग नेटवर्किंग आर्टिफ़िशियल क्लिनिक और इलेक्ट्रिकल में इलेक्ट्रिक ड्राइवर और उत्पाद इलेक्ट्रॉनिक सामग्री इलेक्ट्रॉनिक्स में आर्टिफिशियल ब्यूरो उपग्रह संचार एपीसैन निदान एवं संवेदन प्रणाली नियंत्रण सिद्धांत और सिद्धांत पावर इलेक्ट्रॉनिक कन्वर्टर्स का विश्लेषण बायो इलेक्ट्रॉनिक्स बिजली की गुणवत्ता और आपूर्ति की लागत के आर्थिक मूल्यांकन बेसिक इलेक्ट्रिकल इंजीनियरिंग भार एवं विद्युत पावर प्लांट की विद्युत एवं औषधि उपयोगिताएँ विद्युतचुंबकीय क्षणिक कार्यक्रम (ईएमआई) विद्युतीकरण

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