Origin

China

The magnetic material is used widely in the following fields such as electric power, communication, electronic instrument, and automobile and computer as well as information storage. In recent years, it is the nonreplaceable material that the high and new-technology industries are being promoted to developing and the contemporary civilization is making

progress. It is very important to research the basic property of magnetic material during physical experimentation. The Curie temperature is the physical quantity used to characterize the basic property of magnetic material, which reflects the transformation temperature of magnetic material from ferromagnetism to paramagnetism.

The bridge method is used to measure the temperature of ferromagnetic material when the spontaneous magnetization of it disappears according to the property that the magnetic moment of ferromagnetic material is to change with the changing temperature. The platinum resistance temperature sensor is used to record the temperature; the digital voltmeter is used to take a reading of voltage and then draw up the T~V curve on which the Curie temperature TC is determined. The basic property of this magnetic material can be comprehended deeply through measurement for the Curie temperature of soft magnetic ferrite. Computer can acquire  the data and measure out the  temperature voltage curve automatically so that the automatic operation combines with the manual operation, i.e. the manual operational ability of students not only can be improved but also an ability by which this classical experimentation is possible to carry out is trained during measurement. This apparatus is possessed of the following features such as firm system structure, steady and reliable property, which is suitable for the modern physical experimentation as well as researching and designing experimentation in universities and colleges.

Specifications: (As per one set)
Signal generator	Frequency modulation 500Hz-1500Hz Amplitude modulation 2V-10V (peak-peak value)
Digital frequency meter	Resolution   1Hz Measuring range   0-9999Hz
AC voltmeter	Resolution   0.001V Measuring range   0-1.999V
Digital thermometer	Measuring range   0��/span>-150��/span> Resolution  1��/span>
Ferromagnetic sample	Curie temperature 50��/span>±2��/span>and 90��/span>±2��/span>, respectively