A torque magnetometer has been developed and built in order to measure torque curves of magnetic materials. It is of the electromagnetic compensation type (counteracting coil in a magnetic field). Its main characteristic is that the magnetic field employed to obtain the counteracting torque in the coil is the same as that used to magnetise the sample. In this way one obtains a sensitive, simple and compact magnetometer.
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Tejedor et al. (1989) studied this question.
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