Magnetic properties of permanent magnets for magnetic sensors working in wide range of temperature

نویسندگان

  • Barbara SLUSAREK
  • Kazimierz ZAKRZEWSKI
چکیده

Permanent magnets are used in many sorts of devices. They are applied in many electromagnetic transducers – like, for example, electric machines and measurement instruments. Nowadays a new generation of sensors, especially position sensors, are fitted with permanent magnets. Different types of sensors and different working environments require the application of permanent magnets with parameters adapted to working conditions, such as, among other things, the temperature of operation. This paper presents a review of permanent magnets, their magnetic properties and their properties in different temperatures. Streszczenie. Magnesy trwałe znajdują zastosowanie w wielu rodzajach urządzeń, przykładowo w maszynach elektrycznych i przyrządach pomiarowych. Nowe generacje sensorów , w szczególności czujniki położenia, zawierają również magnesy trwałe. Sensory pracujące w różnych warunkach wymagają doboru właściwych parametrów magnesów, między innymi, do pracy w różnych temperaturach. W artykule dokonano przeglądu magnesów trwałych oraz ich właściwości w szerokim zakresie zmian temperatury (Właściwości magnetyczne magnesów trwałych dla sensorów pracujących w szerokim zakresie temperatur).

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تاریخ انتشار 2012