Sound coil motors helped the China Earthquake Science and Technology Laboratory do a series of major events
time£º2019/5/20 click£º5059
Sound coil motors helped the China Earthquake Science and Technology Laboratory do a series of major events. At the Wenchuan Earthquake Ten-year Symposium held on May 12, 2018, spokespersons from relevant departments in China stated that they would immediately start construction of China's earthquake science laboratory. Now that a year has passed, the outside world is highly concerned about the progress made so far. Based on this, On the 10th, the China Seismological Bureau issued a "report card" for the new progress of China's earthquake science laboratory for review.
Zhengguoguang, director of the China Seismological Bureau, said: "In the past year, the construction of China's earthquake science experimental field has progressed smoothly. There have been 360 new observation stations in the experimental field and a number of observation data have been accumulated. "It can be seen that China's earthquake science experimental field has lived up to expectations.
At present, 13 regions, including the United States and Russia, have participated in a series of work in seismic science experimental fields, and 17 expert teams from Peking University and the University of Science and Technology of China have also joined in scientific research. Nearly 60 projects are under research. In the future, the above-mentioned personnel and the new members will unite and collaborate together to speed up the construction of the experimental field and strive to build a number of underground observation platforms from several hundred meters to 1,000 meters in three years to obtain more abundant underground structures and media observation data.
When it comes to seismic monitoring, in recent years, high-performance audio coil motors have been increasingly used in seismic detectors. The audio coil motor equipped with seismic detectors has become a "warning master" to predict earthquakes more accurately. Most seismograph's core device is simply a heavy object that hangs a fixed cable ring in a magnetic field. When an earthquake occurs, the ground drives the magnets that generate a magnetic field in the device to vibrate together, and the coil remains basically stationary due to the inertia of the hanging weight. At this time, the coil generates an induction current because of cutting the magnetic wire. The signal is collected, and some filtering and damping are done to obtain meaningful information. The seismic tester that introduced the sound coil motor was simplified on the basis of the original traditional seismic monitor, removing the disk and using only its magnetic head arm. When the magnetic head arm is working on the hard disk, it is driven by a sound coil motor. The motor drive powers the coil in the coil motor, and the coil will drive the head arm.
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This article originated from the original company of Kunshan Tongmao Electronics Co., Ltd.(www.tmmotion.com). Please indicate the source.
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