SENSORS OFMAGNETIC HEADINGOF THE AIRCRAFT AND THE LOCAL MAGNETIC FIELDS ON THE BASIS OF FERROPROBES WITH PULSE EXCITATION SCHEME
The flux gate for measurement of size and direction of magnetic field of the Earth and for measurement of local magnetic fields, applying the unidirectional pulse scheme in an excitement chain are examined. The article treats the bene- fits of ferroprobes with pulse excitement in comparison with the similar sensors with sinusoidal excitement. According to the original circuit proposed by the authors of the article flux gate sensor for measurement of a local magnetic field with two ferroprobes for the purpose of compensation of the Earth’s magnetic field is designed. The experiment with flux gate sensors which contain various quantities of rounds in an output winding and a permanent magnet is carried out. The factors that influence the output voltage of the sensor are examined during the experiment. The regression equation for the ferro- probe by the experimental data is obtained. The regression is important for development of similar measuring systems. First of all, the results of the research are important for the analysis of technical characteristics of magneto-modulation sensors, and for ferroprobes design in aircraft industry.