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
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Embodiment 1
[0016] combine figure 1 , figure 2 , image 3 , Figure 4 As shown, the present invention is made up of non-magnetic Dewar shell 3, fixed support 5, main sensor 8 and reference sensor, and fixed support 5 is arranged in the non-magnetic Dewar shell 3 and between the non-magnetic Dewar shell 3 A vacuum heat insulation layer 4 is formed; the non-magnetic Dewar shell 3 is provided with an air suction port 1 communicating with the vacuum heat insulation layer 4; the non-magnetic Dewar shell 3 is also provided with a cable for connecting cables and filling liquid nitrogen Channel 2, the cable channel 2 communicates with the inner cavity of the fixed bracket 5; the main sensor 8 includes six SQUID sensors, and is fixed on the inner surface of the bottom of the fixed bracket 5 along the center line of the bottom surface of the fixed bracket 5; the reference sensor adopts a The SQUID sensor 7 is fixed in the middle of the axis of the fixed bracket 5, and the distance between the f...
Embodiment 2
[0020] combine figure 1 , figure 2 , image 3 , Figure 4 As shown, the difference between this embodiment and Embodiment 1 is that the reference sensor is composed of a first SQUID sensor 7 and a second SQUID sensor 6, and the second SQUID sensor 6 is arranged above the first SQUID sensor 7 And respectively fixed in the middle of the axis of the fixed bracket 5; the distance between the first SQUID sensor 7 and the main sensor 8 is 80-100 mm, and the distance between the second SQUID sensor 6 and the first SQUID sensor 7 is 60-80 mm. The six SQUID sensors in the main sensor 8 described in this embodiment and the two SQUID sensors in the reference sensor form a second-order gradiometer, which jointly realize the signal detection function and further enhance the effect of suppressing interference.
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