Biological cell physical property testing device and testing method thereof

Abstract

The invention provides a biological cell physical property testing device and a testing method thereof, wherein the lower half part of a metal shell and the upper half part of the metal shell form themetal shell, and the lower half part of the metal shell is connected with a base; a plurality of layers of magnetic shielding balls are sequentially arranged in the metal shell in the same sphere center; a supporting framework made of a non-magnetic material and a demagnetizing coil are arranged and distributed between every two adjacent magnetic shielding balls; a motor is arranged in the base;a motor output shaft is fixedly connected with the transmission shaft; the supporting frame is located at the bottom in the innermost magnetic shielding ball; and the transmission shaft is in interference fit with an inner hole of the non-magnetic bearing in the through hole of the supporting frame. The upper end of the transmission shaft is fixedly connected with the rotating platform; the clampis fixed on the upper surface of the rotating platform; a sensor support is installed on the supporting frame, and a sensor clamp is arranged on the sensor support and used for clamping a sensor. Thesensor is arranged above the clamp. Due to the spherical shielding structure, the testing device can better shield the geomagnetic field, so that the test environment is simple, and the test can be carried out under the normal room temperature condition.

Description

technical field [0001] The invention belongs to the technical field of magnetic field measurement, and in particular relates to a biological cell physical characteristic testing device and a testing method thereof. Background technique [0002] At present, the commonly used equipment for detecting biological magnetic fields in medicine is the superconducting quantum interferometer (SQUID), which is a magnetic flux sensor that converts magnetic flux into voltage. Its basic principle is based on the superconducting Josephson effect and the phenomenon of magnetic flux quantization. In terms of its function, it is a kind of magnetic flux sensor, which can be used not only to measure the change of magnetic flux, but also to measure other physical quantities that can be converted into magnetic flux. It can measure the weak magnetic field of 10-11 Gauss, which is only equivalent to one ten billionth of the earth's magnetic field, which is several orders of magnitude higher than the...

AI Technical Summary

Problems solved by technology

[0003] 1. The superconducting quantum interferometer has a large space and cannot meet the portable requirements;

[0004] 2. The test conditions of the superconducting quantum interferometer are harsh (liquid helium cooling is required), which cannot be well applied to early clinical diagnosis;

[0005] 3. It is necessary to build a magnetic shielding room to achieve geomagnetic isolation, and the investment cost is high;

However, due to the theoretical calculation limit of the barrel-shaped magnetic shielding structure, the magnetic shielding effect needs to be improved.

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