scholarly journals Electromagnetic interference shielding in unmanned aerial vehicle against lightning strike

2018 ◽  
Vol 17 (2) ◽  
pp. 915
Author(s):  
Diah Permata ◽  
Menachem C. Gurning ◽  
Yul Martin ◽  
Henry B. H. Sitorus ◽  
Mona Arif Muda ◽  
...  
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Electromagnetic Interference ◽  
Lightning Strike ◽  
Electromagnetic Interference Shielding ◽  
Aerial Vehicle

Characterizing Electromagnetic Interference Signals for Unmanned Aerial Vehicle Geophysical Surveys

Geophysics ◽  
2021 ◽  
pp. 1-71
Author(s):  
Callum Walter ◽  
Alexander Braun ◽  
Georgia Fotopoulos
Keyword(s):  
Unmanned Aerial Vehicle ◽  
Electromagnetic Interference ◽  
High Frequency ◽  
Rotation Frequency ◽  
Mitigation Strategies ◽  
Fluxgate Magnetometer ◽  
Geophysical Surveys ◽  
Aerial Vehicle ◽  
Interference Signals ◽  
Electromagnetic Signals

The development of a functional Unmanned Aerial Vehicle (UAV) mounted aeromagnetic system requires integrating a magnetometer payload onboard a UAV platform in a manner that preserves the integrity of the total magnetic field measurements. One challenge when developing these systems is accounting for the sources of in-flight magnetic and electromagnetic interference signals that are greater than the resolvability threshold of the magnetometer. Electromagnetic interference generated by the platform has the potential to be mitigated using several techniques such as magnetic shielding, filtering, or compensation; and can be attenuated by strategically positioning the magnetometer at a distance from the UAV. The integration procedure and selection of a mitigation strategy can be informed by characterizing the electromagnetic interference generated by the platform. Scalogram analysis was employed to characterize the high-frequency electromagnetic signals generated by a multi-rotor UAV’s electromagnetic motors. A low sensitivity (7 nT) vector, fluxgate magnetometer was used to measure the electromagnetic interference generated by two unique multi-rotor UAVs in a controlled lab setting. Results demonstrated three spectrally distinct electromagnetic signals, each with unique frequency and amplitude, generated by each UAV platform. The frequency of these electromagnetic interference signals was found to be directly proportional to the applied rotation frequency of the electromagnetic motor. The aforementioned knowledge was applied to UAV field surveys to assess the high-frequency electromagnetic interference signals experienced. This was achieved by using a high sensitivity (0.01 nT), scalar optically pumped magnetometer with a 1000 Hz sampling frequency. The results show that adequate sensor placement and pre-flight evaluation of the platform-sensor interactions provide useful mitigation strategies, which can compensate for electromagnetic interference signals generated by the UAV platform during aeromagnetic surveys.

Unmanned aerial vehicle for transmission line inspection using an extended Kalman filter with colored electromagnetic interference

2020 ◽  
Vol 100 ◽  
pp. 322-333 ◽  
Author(s):  
Mathaus Ferreira da Silva ◽  
Leonardo M. Honório ◽  
Andre Luis M. Marcato ◽  
Vinicius F. Vidal ◽  
Murillo F. Santos
Keyword(s):  
Kalman Filter ◽  
Transmission Line ◽  
Unmanned Aerial Vehicle ◽  
Extended Kalman Filter ◽  
Electromagnetic Interference ◽  
Aerial Vehicle

Integration of an Autopilot System With a Hobby RC Helicopter

2011 ◽  
Author(s):  
Pu Xie ◽  
Bryndan Gardner ◽  
Ou Ma
Keyword(s):  
Electromagnetic Interference ◽  
Vibration Isolation ◽  
Low Cost ◽  
Flight Test ◽  
State University ◽  
Electromagnetic Interference Shielding ◽  
Isolation Technique ◽  
Gas Engine ◽  
New Mexico State University ◽  
Aerial Vehicle

This paper describes the integration and test work of a small unmanned aerial vehicle (UAV) with autopilot capability, which is currently being developed at New Mexico State University. The UAV is an integration of a commercially available autopilot system (Micropilot’s MP2128HELI) with an RC helicopter (Raptor 90). It has been found quite challenging to integrate an autopilot system with a hobby RC helicopter for research purpose because hobby airframes, as low-cost and manually operated toys, were not designed readily for working with delicate and sensitive autopilot electronics. In our case, the strong vibration disturbances from the gas engine and other moving parts of the airframe significantly corrupted the signals from the avionics hardware. Innovative vibration isolation technique has been developed to mechanically isolate the vibrations from affecting the autopilot system. Several other key problems related to electromagnetic interference shielding and safe flight test were also effectively solved on the project. The integration work has been completed and the UAV is currently being tested.

scholarly journals Research on small lightweight electromagnetic interference measurement system based on patrol unmanned aerial vehicle

2021 ◽  
Vol 2108 (1) ◽  
pp. 012011
Author(s):  
Pingyuan Liu ◽  
Nian Wu ◽  
Junwen Yao ◽  
Xianbin Ke ◽  
Shiguang Bie ◽  
...  
Keyword(s):  
Transmission Line ◽  
Unmanned Aerial Vehicle ◽  
Measurement System ◽  
Transmission Lines ◽  
Electromagnetic Interference ◽  
Full Spectrum ◽  
Observation Methods ◽  
Interference Measurement ◽  
Aerial Vehicle ◽  
Infrared Cameras

Abstract Unmanned aerial vehicle (UAV) has been widely used in power system inspection. Most of the existing UAVs are equipped with visible and infrared cameras for fast full spectrum photography and fault monitoring of transmission lines. When the transmission line has defects such as aging, broken strand and serious corrosion, the traditional image recognition, infrared and other observation methods can not identify these defects well. In order to realize the rapid detection and judgment of broken strand, this paper analyzes the characteristics of electromagnetic interference of transmission line, and constructs the electromagnetic interference measurement system based on patrol UAV. The research results of this paper can realize the real-time detection and alarm of broken strand, and provide technical support for line inspection.

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