Micro flux-gate lung magnetic signal detection device

Abstract

The invention discloses a micro fluxgate lung magnetic signal detection device which comprises a lung magnetizer (1), a micro fluxgate lung magnetic signal detection sensor (2), a circuit system (3) of the micro flux-gate lung magnetic signal detection sensor and a data acquisition and processing system (4). The lung magnetizer (1) is adopted for magnetizing the lung to be detected and magnetized signals are converted to electrical signals through the micro fluxgate lung magnetic signal detection sensor (2). The electrical signals are amplified and filtered through the circuit system (3) of the micro fluxgate lung magnetic signal detection sensor, and then the signals enter the data acquisition and processing system (4) for A/D conversion, storage and analysis. The micro fluxgate sensor based on the micro-fabrication technology, adopted in the invention, replaces the conventional fluxgate sensors and superconducting quantum interference devices and has a resolution being up to a level of 10<-11>T. The micro fluxgate lung magnetic signal detection device is mainly applied to the fields of the early diagnosis of pneumoconiosis, the index measurement of dust in the environment, status judgment of lung functions, identification and judgment of other lung diseases, and the like.

Description

technical field [0001] The invention relates to a miniature fluxgate lung magnetic signal detection device. Background technique [0002] Due to the pollution of the living or working environment and other reasons, the human body will inhale dust. Dust is solid particles suspended in the air for a long time due to various production and living activities of human beings or naturally formed. Dust particles of various components enter the lungs through the respiratory tract and accumulate, which will cause lung tissue fibrosis. A systemic disease called pneumoconiosis. Although most dusts have different amounts of iron, they are all magnetic, but there are differences in strength and weakness. The magnetic substance will be magnetized in the magnetic field, and the magnetized substance will generate an additional magnetic field in the space. Therefore, the dust accumulated in the lungs will be magnetized under the action of a strong external DC magnetic field. After the DC ...

AI Technical Summary

Problems solved by technology

[0011] Among the commonly used lung magnetic signal detection techniques: the disadvantages of SQUIDs detection method are that the maintenance cost is very expensive, the clinical occupation area is large, it is easily affected by environmental noise, shielding is required, the operation is difficult, and it is inconvenient to use and carry, etc.

The disadvantage of the traditional fluxgate detection method is that the resolution is not easy to achieve high, and it is not suitable for early diagnosis of all types of pneumoconiosis

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