Probe of magnetocardiograph

A magnetocardiograph and axis technology, applied in medical science, sensors, diagnostic recording/measurement, etc., can solve problems such as measurement errors, achieve high measurement accuracy, easy operation, and reduce measurement errors
CN100508879CActive Publication Date: 2009-07-08BEIJING SQUID QUANTUM TECH
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Patent Information

Authority / Receiving Office
CN ยท China
Patent Type
Patents(China)
Current Assignee / Owner
BEIJING SQUID QUANTUM TECH
Publication Date
2009-07-08

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Abstract

The invention discloses a magnetocardiography probe, which solves the problem that a probe device needs to be horizontally and longitudinally moved time after time when finishing one time MCG base point measurement, thereby easily generating measurement error. The invention comprises a non-magnetic Dewar casing (3), a fixed support (5), a main sensor (8) and a reference sensor, wherein the fixed support (5) is arranged on the non-magnetic Dewar casing (3), a vacuum insulating layer (4) is formed between the non-magnetic Dewar casing (3) and the fixed support (5), the main sensor (8) comprises six SQUID sensors which are arranged side by side in line along the bottom center line of the fixed support (5), and the reference sensor is composed of one or two SQUID sensors. A first-order or second-order gradient meter is constituted by the main sensor (8) and the reference sensor to realize the function of signal detection. The probe device is moved on a direction to finish the measurement of 36 MCG base points when measuring the MCG. The invention has the advantages of reasonable structure and design, high measuring precision and simple operation.
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Description

technical field

[0001] The invention relates to a signal receiving device of biomagnetism detection equipment based on a high-temperature superconducting quantum interference device. Background technique

[0002] The internationally recognized benchmark for the number of magnetocardiogram detection points is 36 points on the chest. The current number of magnetocardiographs is mostly 4 channels or 9 channels. It needs to move the probe device several times to detect the magnetic signal. Due to the layout of the sensor Limitation (4 channels is 2ร—2, 9 channels is 3ร—3), in actual application, the probe device needs to move horizontally and vertically for a corresponding number of times to complete a measurement, which is prone to measurement errors. Contents of the invention

[0003] The technical problem to be solved by the present invention is to provide a signal receiving device based on a high-temperature superconducting quantum interferometer for biological magnetic dete...

Claims

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