Edyta Ładyżyńska-Kozdraś

Experimental measurements of levitation force generated by high-temperature superconductors in magnetic field

This paper describes the measuring procedure of the levitation force, as a function of levitation gap. Levitation force is a consequence of the Meissner effect occurring between superconductor and the magnetic field. Those experiments are part of studies on magnetic Unmanned Air Vehicles Catapult dynamics. Described experiments used height quality testing machine, box with four height-temperature superconductors YBCO and part of magnetic catapult rail system made of neodymium magnets.

The Use of Hall Effect Sensors in Magnetic Levitation Systems

This paper presents a new method of non-contact measurement and control of the magnetic field strength. The article discusses at first magnetic levitation phenomena and commercial Mag-Lev suspensions systems. Then it explains the Hall effect physics and example use of Hall effect sensor in educational magnetic levitation device. Next it lists some example constructions of Hall effect sensors. Finally it reveals potential new use of Hall-sensor in control system of unmanned aircraft catapult using Meissner effect.

Experimental Measurement of Magnetic Field Generated by Neodymium Magnet

Permanent magnets are one of the basic components of magnetic passive suspension system using superconductors. Generating magnetic field neodymium magnets are placed along the system’s guide. Presented experimental studies were conducted to measure the intensity of the magnetic field, generated by a single neodymium magnet. The Brockhaus Measurements magnetic field gauge BGM 101 was used to build the measuring station. The mechanical part was based on the D4128R110 stepper motor and the ATmega2560 microcontroller, which controlled the Motor Shield module containing L293D. Configuration of proposed measuring station allows to move the gaussmeter probe horizontally, above the magnet. The controllable speed of measurement table enables to obtain accurate and reproducible magnetic field measurements.

Measurement and Controlling Magnetic Field Strength by Using Hall Effect Sensors with Classical Algorithm

In the article a non-contact measurement and controlling a magnetic field on the basis of Hall effect is presented. The structure of a Hall effect sensor was discussed. An example of a simple magnetic field measuring device, which uses the presented sensors, and a model of a magnetic field controlling system with a Hall effect sensor was presented in the paper. A solution system presented in the paper is based on using a ruler of Hall effect sensors to measure a magnetic field induction. The proposed arrangement of the sensors allows to measure the position of a launch trolley of a BSL launcher which uses the phenomenon of magnetic levitation.

Take-off and landing magnetic system for UAV carriers

ABSTRACT Aircrafts play a main role in modern naval wars. The navy increasingly uses unmanned aerial vehicles (UAVs). It can be assumed that in the future navies can largely resist the use of airplanes and helicopters. This will reduce the risk of crew loss and will also reduce the cost of having an airborne device on board. A new class of war ship has come up. This kind of ship is equipped with the automatic take-off and landing system as well as planning, navigation, and supervising of an UAV system. The article presents the magnetic take-off and landing system for UAV carriers. The system was elaborated as a demonstrator of technology in the GABRIEL project.