Magnetorheological fluid pulsation adjusting device and adjusting method thereof

Abstract

The invention provides a magnetorheological fluid pulsation adjusting device and an adjusting method thereof. The adjusting device comprises an electromagnetic induction coil module and a signal acquisition and processing unit, wherein the electromagnetic induction coil module is arranged at the magnetorheological fluid ejection end of a magnetorheological fluid circulation system pipeline; the signal acquisition and processing unit is communicated with the electromagnetic induction coil module through signal transmission; the signal acquisition and processing unit is used for acquiring magnetorheological fluid pulsation signals in the magnetorheological fluid circulation system pipeline, converting the pulsation signals into electric signals and transmitting the electric signals to the electromagnetic induction coil module; and the electromagnetic induction coil module is used for generating an alternating magnetic field according to the electric signals so as to change the viscosity of magnetorheological fluid and then inhibit the pulsation signals of the magnetorheological fluid in the magnetorheological fluid circulation system pipeline. According to the mgnetorheological fluid pulsation adjusting device and the adjusting method thereof provided by the invention, the pulse amplitude in the magnetorheological fluid circulation system working by adopting a peristaltic pump can be actively inhibited, and the machining precision of an ultra-large-diameter complex curved surface is improved.

Description

technical field [0001] The invention relates to the technical field of optical element processing, in particular to a magneto-rheological fluid pulsation adjustment device and an adjustment method thereof. Background technique [0002] The processing of complex curved surfaces of optical components generally adopts CCOS technology, that is, computer-controlled small grinding head processing technology. In the traditional process, the grinding head is made of optical asphalt; when processing large-diameter (2 meters) or super-large-diameter (4 meters) mirrors, the processing time for traversing the entire mirror is long (generally greater than 8 hours) , the asphalt polishing disc is prone to deformation and aging problems during high-pressure and long-time processing, which leads to a large deviation between the removal function and the theoretical calculation, which leads to a decrease in the convergence rate of a single processing. If the magnetorheological processing tec...

AI Technical Summary

Problems solved by technology

[0004] In order to overcome the existing technical problems and effectively suppress the pulsation of magnetorheological fluid, the present invention provides a magnetorheological fluid pulsation regulating device and its regulating method

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