In summary, the conversation is discussing the calculation of the emf induced in a tightly wound coil at the center of a solenoid with specific dimensions and a varying current. The formula for calculating the magnetic field of the solenoid is mentioned, as well as the use of the solenoid's...
In the first place, a formula is proved for indicating a magnetic induction strength inside a long straight helix tube carrying current, with the tubes cross section in tetragonal N regular polygon. 首先证明了正N边形截面长直螺线管内部磁感应强度的公式,进而证明了长直螺线管内部磁感应强度与横截面的...
and the stimulation time. The drive unit amplifies the stimulus signal to drive the coil that is the actuator. The solenoid coil, the actuator, was fixed on a permanent magnet. The vibration occurs according to the magnitude and frequency of the current flowing in the coil according to the ...
Then, under the action of a magnetomotive force excited by the passing of an alternating current through a solenoid coil, the contacts close again; which results in the charging of the capacitor, etc. In the course of discharge via field desorption or vacuum breakdown, directional mass transfer...
Finally, a control system consisting of a solenoid valve as well as a pressure gauge is used to release the high-pressure gas to impact the sample, while a data acquisition system collects the dynamic strain during the explosion. The HPAB coal experiments are conducted by the subject group [...