Study On Maglev Harmful Torque Tester

As the key supporting three floating gyro technology of maglev adoption can reduce the output shaft of mechanical contact friction, and precise, stable fixed pivot in order to improve the accuracy of gyroscope. However, maglev adoption have introduced around the gyro torque output shaft of harmful. The purpose of the test maglev harmful torque provides a technical ways. For the development and maglev batch production of safeguarding conditions, one of the development and promotion of maglev has important practical significance, to promote the three floating gyroscope and other liquid float inertial components development has a significant impact.In this paper, first three floating gyroscope and maglev technology development history and current research status is simply introduced, analyzes the maglev harmful torque emergence mechanism, advances systematic overall scheme design, and completed the key parts of the design and choose, including bearing parts, float components, signal device, torque, conductive tiffany-twisted, floating liquid, etc.Secondly, according to the system's overall scheme, completed its hardware circuit design. Choose TI company TMS320F2812 DSP as the core processing chip, design including the preamplifier, band-pass filter, phase sensitive demodulation signal disposal of sensor output circuit, the weak signal undertake recuperating, through TMS320F2812 own 12 ADC realization of the signal data acquisition, using TMS320F2812 carries on the high accuracy of real-time processing.Then according to the system requirements for software design, the full use of hardware, under the precondition of use software to improve the accuracy, ordinal finish to signal acquisition module, data processing, digital filter, PWM pulse width modulation module software realization.Finally, the tester function were analyzed, and analysis of the impact tester failure factors and hazard of the material tester, temperature control, technology and puts forward the requirements.Magnetic moment is very tiny data, to accurately and quickly measured with a certain degree of difficulty of the moment, and the accuracy of the tester is factors more precision machining of parts and assembly precision, accuracy of the test circuit, the use of the environment others have very high demands. The proposed design method can realize the tester indicators.