Speaker cone structure can be divided into three parts:
1 > vibration system Bluetooth
Speaker including the diaphragm , voice coil, dampers , dust cover , etc.
2 > of the magnet system comprises a magnetic plate , magnetic columns, the magnetic plate , a magnet , etc.
3 > auxiliary systems including frames, blank , wiring racks, phase plug strip .
According to Faraday 's law , when a current-carrying conductor through the magnetic field , an electromotive force Multimedia Speaker will be in a direction in line with Fleming 's left hand rule , force and current, the magnetic field direction perpendicular to each other , and the current size of the force , the length of the wire , a magnetic flux density proportional . When the voice coil audio input alternating current, alternating coil is subjected to a driving force alternating movement, led cone vibration, repeatedly pushing the air and sound.
2014年1月22日星期三
2014年1月17日星期五
How to correctly use the horn ?
During the day, as people affected by the sun , the light signal is relatively weak reaction to the car . Therefore , daytime running vehicles generally use acoustic signals to remind people , to let people know the approximate distance and direction of the vehicle. But because of some drivers , regardless of the occasion, habits and frequent use of car horns leaving it very offensive , resulting in the current section of the city and many of the city 's district banned in most motor Car
Speaker vehicle whistle ; On the contrary , there are some drivers in Shique should not use the car horn , resulting in a traffic accident .
Regardless Hao Jinming , paste mess blind by some good . In driving the process , the driver correctly whistle, traffic safety will bring huge benefits.
1 , as much as possible ahead of the front of the whistle to remind pedestrians and vehicles , do not wait has been very close to the pedestrian and the vehicle ahead whistle ; remind pedestrians to avoid using whistles , causing pedestrians to avoid panic . ( Pedestrian Once panic, it is difficult to grasp the law of action )
2 , other emergency situations in case you did not notice triggered , brakes plus whistle disposal than just the way you want to brake well ( electric horn tooting area ) ; in front of pedestrians and vehicles being squeezed when forced , the appropriate relative better than piccolo flute . ( Can cause each other to get your attention , to resolve Bluetooth Speaker common occurrence of the disaster )
3 , driving in the vast suburban road , do not use the whistle to save as much as possible with a short distance in front of the whistle to remind pedestrians and vehicles. ( A vast area on the outskirts of the highway will not be tooting it )
4 , in preparation for overtaking and overtaking process, try to remind and confirm with Piccolo in front of the vehicle driver . ( To be super driver of the vehicle will not be chatting phone? )
5 , after the whistle to remind pedestrians and vehicles in front of the role is confirmed, try not to whistle again. ( Word always repeated that really make people feel disgusted )
6 , the former had fork, fork , and the downtown section of town , ( except Jinming District ) ahead of deceleration and whistle . ( Fork, fork a lot of accidents happen )
7 , even if the vehicle traveling in the region Jinming should also ensure normal working conditions electric horn , in case of emergency situations. ( Even some of the police penalty shall also much easier than accident claims )
8 , met with a flute urged to avoid blocking the road in front of vehicles and pedestrians, people avoid using call whistle way .
9 in the evening to avoid traffic whistle , because the light signal conversion is far better than the role of whistle .
Regardless Hao Jinming , paste mess blind by some good . In driving the process , the driver correctly whistle, traffic safety will bring huge benefits.
1 , as much as possible ahead of the front of the whistle to remind pedestrians and vehicles , do not wait has been very close to the pedestrian and the vehicle ahead whistle ; remind pedestrians to avoid using whistles , causing pedestrians to avoid panic . ( Pedestrian Once panic, it is difficult to grasp the law of action )
2 , other emergency situations in case you did not notice triggered , brakes plus whistle disposal than just the way you want to brake well ( electric horn tooting area ) ; in front of pedestrians and vehicles being squeezed when forced , the appropriate relative better than piccolo flute . ( Can cause each other to get your attention , to resolve Bluetooth Speaker common occurrence of the disaster )
3 , driving in the vast suburban road , do not use the whistle to save as much as possible with a short distance in front of the whistle to remind pedestrians and vehicles. ( A vast area on the outskirts of the highway will not be tooting it )
4 , in preparation for overtaking and overtaking process, try to remind and confirm with Piccolo in front of the vehicle driver . ( To be super driver of the vehicle will not be chatting phone? )
5 , after the whistle to remind pedestrians and vehicles in front of the role is confirmed, try not to whistle again. ( Word always repeated that really make people feel disgusted )
6 , the former had fork, fork , and the downtown section of town , ( except Jinming District ) ahead of deceleration and whistle . ( Fork, fork a lot of accidents happen )
7 , even if the vehicle traveling in the region Jinming should also ensure normal working conditions electric horn , in case of emergency situations. ( Even some of the police penalty shall also much easier than accident claims )
8 , met with a flute urged to avoid blocking the road in front of vehicles and pedestrians, people avoid using call whistle way .
9 in the evening to avoid traffic whistle , because the light signal conversion is far better than the role of whistle .
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