Two-dimension magnetic fluid acceleration transducer

Abstract

The invention provides a two-dimensional magnetism fluid accelerometer including non-magnetic cavity, vertical mass block, horizontal mass block, test device and magnetic fluid, wherein the non-magnetic cavity is a closed container which is formed by non-magnetic material, the vertical mass block is equipped in the middle part of the non-magnetic cavity along the vertical direction, test device is equipped between the upper bottom double end faces and the non-magnetic cavity interface, and keeps set preload pressure between the vertical mass block, test device and non-magnetic cavity; the horizontal mass block is equipped in the middle part of the non-magnetic cavity along the horizontal direction, test device is equipped between the left right double end faces and the non-magnetic cavity interface, and keeps set preload pressure between the horizontal mass block, test device and non-magnetic cavity; and the cavity which is formed between the non-magnetic cavity and vertical mass block and horizontal mass block is full of magnetic fluid; the test device is used for testing pressure changes between the vertical mass block, horizontal mass block and the non-magnetic cavity, and outputs acceleration test result signal. The invention can dependently examine axis acceleration paralleled with any one mass block. The invention has merits of two examine dimensions, large measure range, controllable measure range, high sensitivity, intelligence, high reliability, long service life and so on.

Description

technical field [0001] The invention relates to the field of production and application of acceleration sensors, in particular to a two-dimensional acceleration sensor based on magnetic fluid. Background technique [0002] At present, acceleration sensors are commonly used in many technical fields, such as automobile motion control, construction machinery motion control, mechanical vibration detection, aerospace, home appliance performance detection and so on. [0003] Existing acceleration sensors usually have the following structures. [0004] An acceleration sensor adopts a cantilever beam structure, including a cantilever beam whose fixed end is arranged on a substrate for reciprocating elastic deformation movement, and the external acceleration is determined by detecting the position of the cantilever beam. The commonly used detection method is to set a cantilever beam with one end fixed and the other end free to move, attach a strain gauge to the root of the cantileve...

AI Technical Summary

Problems solved by technology

[0006] Once the above-mentioned acceleration sensor is installed, it can only detect the input acceleration in the same direction, but cannot detect the acceleration in other directions, that is, its detection direction is one-dimensional, and at the same time, the material inside the acceleration sensor cannot be changed once it is manufactured. , these are their disadvantages

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