Manipulation methods for magnetic liquids

Abstract

The invention discloses a magnetic liquid manipulating method. Due to pressure latency, offset exists between pressure data which are used for reference and are processed by an FPGA chip and real pressure derived data. An ARM chip compares the reference pressure data with the real pressure derived data to acquire response data. The reference pressure data are corrected. Pressure data given by a pressure piston are changed. The drive performance of a magnetic liquid micro-displacement drive is improved. The ARM chip applies a manipulating command on a dynamic balance valve of a second processing unit according to reference stress derived data to change the opening of an electronic switch. The gas incoming speed of a pressure piston is changed. Pressure applied by the pressure piston on the magnetic liquid micro-displacement drive is changed. According to the invention, the defect that a method used for manipulating the cohesion progress of magnetic liquid cementing is unavailable in the prior art is avoided.

Description

[0001] technical aspect [0002] The invention belongs to the technical aspect of magnetic liquid, and in particular relates to a manipulation method for magnetic liquid. Background technique [0003] It has both the fluidity of liquid and the magnetism of solid magnetic materials. It is a stable colloidal liquid composed of magnetic solid particles with a diameter of nanometers (less than 10 nanometers), a base carrier liquid (also called a medium) and a surfactant. The fluid has no magnetic attraction when it is static, and it shows magnetism when an external magnetic field is applied. Because of this, it has a wide range of applications in practice and has high academic value in theory. The magnetic fluid produced with nano-metal and alloy powder has excellent performance, and can be widely used in various harsh conditions of magnetic fluid sealing, shock absorption, medical equipment, sound adjustment, light display, magnetic fluid beneficiation and other fields. [0004...

AI Technical Summary

Problems solved by technology

[0004] At present, basically all the analyzes for magnetic liquids are only based on increasing the magnetic flux of the external magnetic field lines, so as to realize the cohesion of the magnetic fluid, but the cohesion of the magnetic fluid has a maximum critical value, as long as it reaches the maximum critical value, The cohesion force of the magnetic liquid will not increase according to the increase of the magnetic flux of the external magnetic field lines, so that the speed of the further extension of the magnetic liquid towards the high-efficiency drive is not high. advances in places, so that the method of manipulating the progress of the cohesion force of the cementation of the magnetic fluid is important, but so far there is no such method that can manipulate the progress of the cohesion force of the cementation of the magnetic fluid