一种磁性液体悬浮稳定性原位无损表征装置

By combining a high-precision adjustable lifting platform, a suspension measurement module, and an LC oscillation module, non-destructive in-situ precise measurement of the suspension stability of magnetic liquids is achieved, solving the problems of high detection costs and long time consumption in existing technologies, reducing detection costs and providing operational convenience.

CN122409445APending Publication Date: 2026-07-17BEIJING JIAOTONG UNIV

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
BEIJING JIAOTONG UNIV
Filing Date
2026-04-22
Publication Date
2026-07-17

AI Technical Summary

Technical Problem

Existing technologies for detecting the stability of magnetic liquid suspension are costly, time-consuming, damaging to the magnetic liquid, qualitative rather than quantitative, with inaccurate data estimation and high equipment requirements, making it impossible to achieve non-destructive, in-situ, and accurate measurement.

Method used

By combining a high-precision adjustable lifting platform, a suspension measurement module, an LC oscillation module, and an inductance/capacitance/frequency detection module, the change in inductance is converted into a change in electrical signal, thereby achieving non-destructive, in-situ, and accurate measurement of the concentration of magnetic liquids.

Benefits of technology

It enables non-destructive, in-situ, precise measurement of the suspension stability of magnetic liquids, reducing testing costs, simplifying the operation process, and providing convenience for scientific research.

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Abstract

本发明具体设计一种磁性液体悬浮稳定性原位无损表征装置,该装置包括高精度可调升降台(1)、悬浮测量模块(2)、L‑C振荡模块(3)电感 / 电容 / 频率检测模块(4)。该装置工作时,将待测磁性液体转移至带塞试管(2‑1),分别将试管(2‑1)和电感(2‑2)固定在高精度可调升降台(1)上,调节高度可调旋钮(1‑3)调节试管(2‑1)高度,使得电感(2‑2)与试管(2‑1)产生相对位移。以此高度范围内磁性液体为内芯的电感(2‑2)其电感值会随着磁性液体浓度变化而变化,所对应的谐振频率f0也会发生变化。将磁性液体的浓度变化转化为电信号变化,并将其数字化,可实现在无损条件下对磁性液体稳定性原位精准测量。
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