Objective to study the blowing hallmethod after decortication of lung for treatment of chronic empyema patients, and try to find out a simple, safe and effective ways of enhancing lung puff.
A method for measuring 3-d magnetic field of the permanent magnet with three single-dimension Hall probes was proposed.
提出了一种采用3个一维霍尔探头进行三维测量小型永磁体空间磁场的方法。
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This paper proposes a new method of measurement of underground displacement based on Hall effect, with which the quantity and direction of underground displacement can be measured.