Magnetics experimental device and method
An experimental device and magnetic technology, applied in teaching models, educational appliances, instruments, etc., can solve problems such as incompatibility, and achieve the effect of improving measurement efficiency and enhancing teaching effect.
Active Publication Date: 2016-07-20
INNER MONGOLIA UNIV OF SCI & TECH
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Problems solved by technology
Since the magnetostrictive effect is the change of the axial length, and the magneto-optical effect is the angle change in the circular plane perpendicular to the axis, one is the length change, the other is the angle change, and the two change directions are perpendicular to each other, therefore, The disclosed devices for measuring the magnetostrictive effect and the magneto-optical rotation effect are not compatible with each other
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[0033] combine figure 1 The magnetic experiment equipment of the present invention will be described. Including a bench 1, the bench 1 is connected to a light source 2, a polarizer 3, a component to be tested group 4, an analyzer component 5, a split tip component 6, a half mirror 7, and a micrometer eyepiece group from bottom to top along the optical path. 8. An excitation coil and its drive circuit 9 are arranged around the test piece 4 .
[0034] like figure 2 As shown, the analyzer assembly includes a connecting sleeve 18, a fixed mandrel 25, a rotating handwheel 12, and action conversion devices 13 and 14; the connecting sleeve 18 is directly or indirectly connected to the fixed mandrel 25; the connecting sleeve The barrel 18 is provided with a chute, the lower part of which can accommodate and fix the upper part of the excitation coil 9; the rotating hand wheel 12 is rotatably arranged in the chute; the outer circumference of the rotating hand wheel 12 is on the conne...
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The invention relates to a magnetics experimental device. The magnetics experimental device comprises a light source, a polarizer, a piece to be tested, a polarization detection assembly, a wedge assembly, a semi-transmission reflector and a micrometer eyepiece which are arranged on a bench and distributed along an optical path sequentially from bottom to top; the magnetics experimental device further comprises an excitation coil which surrounds the piece to be tested, and a driving circuit of the excitation coil; the polarization detection assembly comprises a connecting sleeve, a fixed pushing rod, a rotating hand wheel and a motion conversion device, wherein the connecting sleeve is internally provided with a slide groove, and the rotating hand wheel is arranged in the slide groove; the bottom of the rotating hand wheel is provided with an analyzer; a light intensity probe is arranged in a cavity formed by the rotating hand wheel and the analyzer; and the motion conversion device is used for converting the rotation of the rotating hand wheel into the longitudinal motion of a sliding pushing rod. The invention also relates to an experimental method based on the experimental device. With the method capable of simultaneously measuring two magnetic effects, namely, magnetostrictive axial length and magnetic rotation, based on the same device, and the experimental device provided by the invention adopted, measurement efficiency can be improved. The experimental device and method are especially suitable for magnetics teaching experiments.
Description
[0001] Field of study [0002] The invention relates to a magnetic experiment device, which belongs to the field of magnetic measurement and teaching demonstration. In particular, it relates to a device and method for simultaneously measuring the magneto-optical effect and the magnetostrictive effect. Background technique [0003] Magnetostrictive effect and magneto-optical rotation are two important magnetic effects, which are widely used in precision measurement, testing, automatic control and other fields. Magnetostrictive and magneto-optical experiments are also university physics experiments. Common experiments for the course. At present, the measurement of the two kinds of magnetic effects is carried out separately, and the magnetostrictive experiment and the magneto-optical rotation experiment are two independent experiments and each has its own experimental device. For example, the patent document with the application publication number of CN102214404A discloses a ma...
Claims
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IPC IPC(8): G09B23/18G09B23/22
CPCG09B23/18G09B23/22
Inventor 李国峰董大明
Owner INNER MONGOLIA UNIV OF SCI & TECH