Method for collecting boer resonance instrument movement state data based on hall element

Abstract

As an object to be tested, a magnetic steel-block (MS) is put on the Boolean resonance instrument. The magnetic field (MF) produced by the vibrating MS becomes a variable one against the closely fixed Hall cell (HC). The voltage induced by HC in the variable MF reflects the moving state of MS. Finally, the induced voltage is amplified, analyzed and processed. This method uses a HC and the existing lab equipment to non-contacted collect the amplitude info of a regularly or irregularly moving object around an axis to analyzes its moving state. This is a university teaching experiment method. It is easy to operate and easy to realize. The cost of equipment and material is low. It is convenient to collect and analyze data under the state of chaos movement, including torsional pendulum and other special movement. This benefits to teaching and research on chaos theory and experiment and raises learning interest and induces creative thinking.

Description

technical field [0001] The invention relates to a method for using a physics teaching experiment instrument in colleges and universities, to be precise, relates to a method for collecting motion state data of a Bohr resonator based on a Hall element, which belongs to the teaching or technology of physics, testing technology or electronic science in colleges and universities The technical field of the model or experimental setup used for training. Background technique [0002] See Figure 1. The Bohr resonance instrument is a new type of teaching and experimental instrument that is widely used in Chinese colleges and universities. In the figure, 1 is a photoelectric gate, 2 is a deep groove used to indicate the starting end of the balance wheel's outer diameter, and 3 is a deep groove for The shallow groove for calculating the rotation angle of the balance wheel, 4 is the copper balance wheel, 5 is the rocker, 6 is the volute spring, 7 is the support frame, 8 is the damping co...

AI Technical Summary

Problems solved by technology

If the photoelectric gate of the original equipment is still used, there are two problems: one is that the interval of data collection is 2°, which cannot reach the required interval density; Realized by changing the stress state of the system

Since the instrument cannot meet the above design requirements, the latter cannot be used in various experimental teachings for observation, research and data collection of balance chaotic phenomena

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