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 .

Car Speakers

One, easy to damp Mifengbuyan: Although the internal speaker is closed, but if Mifengbuyan wash the interior space into a mist or water vapor in the air, moisture vapor can easily lead to contacts does not work.
Second, the electromagnetic coil terminal bad: Some speakers inside the solenoid wire terminal connectors are Multimedia Speaker crimped aluminum rivet connections, non-reliable solder connection, if the insulating paint on the handle end wire without a net or a rivet crimping insecure easily produce virtual connection failure, resulting in poor horn work. Such failure is the speaker quality reasons, can not be repaired, only replaced with new parts.
Third, contact ablation: If prolonged honk the horn contact ablation and could easily lead to an impedance, the current flowing through the solenoid weakened, unable to attract the armature electromagnetic bookshelf computer speaker suction decline driven by the normal vibrations of the diaphragm, resulting pronunciation husky, do not even ring . But constantly honk if strong electric moment

In the traffic laws, the use of the car horn, made ​​such Speaker

1, motor vehicle approaching sharp bends, etc. affect the safety of the top of the ramp sections and overtaking sight or the event of an emergency, should slow down and honk to indicate.
2, the front of the vehicle in case the vehicle is parked or driving slowly while waiting in line, waiting or turn driving bookshelf speaker not enter non-motor vehicle lanes, sidewalks driving, urging shall honking vehicles and pedestrians.
In other words, the role of car horns, is a special section of the advance warning, the warning of some emergency Multimedia Speaker, in order to ensure traffic safety.

Car Speaker Response

It determines the maximum sound speakers that can emit a strong feeling of sound macro is the biggest shocking . The indicators in terms of multimedia speakers , in fact, the significance is not great unless the room is a great need to have enough sound pressure to meet the bookshelf speaker of the listener . International speaker on the power of performance indicators marked in two ways: Rated power ( long-term power ) and Maximum Power ( PMPO instantaneous power or musical power MPO). The former refers to the speaker within the rated frequency range provides a continuous analog signal waveform at a certain interval and repeat a certain number of times, without any damage to the speaker maximum electric power ; latter refers to the speaker can withstand short-term maximum power . Typically businesses in order to meet and consumer psychology , there are often large music power marked tendency , so we should buy multimedia speakers rated power prevail. Speaker's power amplifier chip is mainly determined by its power , in addition to the power supply bookshelf computer speaker related. Although the speaker's power is better, but enough is enough for the average home user 20 sq. m around the room speaking , 30W speaker , or a combination of 2.1,4.1 about 40W subwoofer is already more than enough , and then high-power speakers only help you waste money that quot;? merit " in the power side陎, Hongxi speakers already for you to make the best choice , so if you are fond of the words of the speaker of the Chang Foundation , the power can be ! no longer consider the frequency response of the frequency range : the former refers to the playback frequency range of the speaker and the lowest effective playback frequency among the most significant , in Hertz (Hz); the latter refers to a constant voltage output of the audio signal and the speaker when connected to the system , the sound pressure generated by the speaker changes with increasing frequency or attenuation occurs , the phase change with frequency of the phenomenon , the relationship between changes in sound pressure frequency and phase associated with the known frequency response units decibels (dB). sound pressure and phase lag versus frequency curves are called " amplitude-frequency characteristics " and " phase-frequency characteristics " , collectively, the " frequency characteristics ." this is to investigate the merits of the speaker is an important performance indicator , it and speaker performance and price has a direct relationship , its decibel value smaller the speaker frequency response curve more fair Tanzania , distortion smaller, higher performance , such as : a speaker 's frequency response is 60Hz-18kHz +-3dB for the present the middle and low speaker, mostly because of poor sound quality ( distortion serious ) or the manufacturer's technical staff of the concept of frequency response and the frequency range of the speaker leads to no clear labeling . usually marked frequency response in see quot;? system frequency response "and" amplifier frequency response " to know " the system frequency response " is always better than " amplifier frequency response "small range , so only marked" amplifier frequency response " has no meaning , which Some just to deceive unsuspecting consumers. Speaker manufacturers now generally marked on the system frequency response range is too large , high-frequency part of the difference is not a lot , but in the low end is too outrageous : three hundred dollars dare wooden speaker frequency response of the low-frequency standard to fifty or sixty Hz or even lower , to know foreign brand high-end speakers ( worth thousands of dollars ) only in the vicinity of the low-frequency Frequency standard fifty or sixty hertz , so we advise bass ears must be true , do not easily believe propaganda value on the list . Another point to note is : now there is a wrong tendency to buy multimedia speakers , the lower frequency limit value is too low frequency part . To know

Car amplifier bass

Due to space limitations, car bookshelf speaker bass placed to achieve stability and good heat dissipation, the best choice is, of course, the car trunk. This inevitably brings two problems, one is how to reduce the volume of equipment to the trunk occupation and the function, the second is how to in as little as possible to destroy the car interior conditions to minimize the audio signal transmission line loss. Car stereo effect is inevitably affected by the engine sound, external airflow noise interference, these effects mainly focused on the bass drum and bass, so the car install bass speaker is particularly necessary. Just a mount and inferior bass, feel better than before, but listen to a period of time will feel, bass vague, bosom frowsty, mind after listening to get confused. This is because under the Multimedia Speakers of distortion into noise, the noise can damage the brain damage the body. Advice for sound of friends here, and don't covet is cheap sell junk, modified again found problems in the future, will abolish many equipment, spend more than necessary. Do not think that running must be expensive, both lobster and Fried potatoes. But the taste is worth tasting, here are even cheap packages, equipment quality guaranteed, and can enjoy the first-class installation technology and good after-sales service, will have the feeling of the value.

Car horn points have electric horn and two loudspeakers

Car horn points have electric horn and two loudspeakers, electric horn by electromagnetic coil electricity and power continuously, make the metal diaphragm produces vibration and acoustics, sound pleasing to the ear. Electric horn shape is a spiral and basin type, widely used in all kinds of cars. Light passenger cars are electric horn. Air TV Speaker using compressed air flow make the metal diaphragm produces vibration, appearance is more long horn (cylindrical), more sound and a higher tone, long transmission distance, multi-purpose on running a long distance of large and medium-sized cars within the city is disabled. Spiral car electric horn attached speaker cone, roll up into a spiral in a compressed volume, beautiful sound loud and clear. Basin shape car electric horn without speaker cone, shape flat small volume, light weight and easy installation, quality slightly but widely used. Basic working principle of spiral and basin shape is the same, is Computer Speaker by iron core (1), (2) the magnetic coil, contact (6), the armature (5), diaphragm (3), etc. When the driver presses the button (8), electricity flows through the contact through the coil, a coil magnetic suction under the armature (5) mandatory diaphragm moving armature move off contact, magnetic current interrupt disappear, elastic diaphragm in itself and under the action of leaf spring and recovery in situ with armature, contact closure circuit connected to electric current to pass through magnetic coil, contact the repeat the action. So follow bad diaphragm vibration unceasingly, thus the sound. The soundboard (4) and diaphragm rigid connection, can make the vibration smooth sound more pleasing to the ear. Car horn on high frequency with high, medium and low bass three. In order to make the car horn tone more plump, some electric horn of the car horn and got behind the tones of high and low, form a dual tone horn. But this current is bigger, will directly endanger the button contact. In order to avoid the horn button contact is arc spark burn out, some car in line to join a relay, with a small current to control large current, make the horn button only from damage by small current. Need to point out that the positive line (7) of the average car horn is supplied by the fuse box, anode electric horn button is the control of the car horn, so commonly known as the horn button line for the "system". General motors electric horn of tone and volume can be adjusted, by adjusting the gap between armature and core adjustable tones, adjust the contact pressure adjustable volume, once the volume, coil current changes. In order to keep the sound volume, there are some electric horn is fully sealed, are not allowed to adjust, change is broken as a whole.

The working principle of the car horn

Auto electric horn is to rely on the Multimedia Speaker of the metal diaphragm to sound. Automobile electric horn by core, magnetic coil, contact, armature, diaphragm, etc. When the driver presses the horn switch, electricity flows through the contact through the coil, a coil magnetic suction under the armature, mandatory move diaphragm, armature move off contact, interrupt current, coil magnetic disappeared, diaphragm armature on bookshelf speaker own flexibility and spring leaf restored with in situ, contact closure reclosing circuit, current pass through magnetic coil, contact the repeat the action. So circular diaphragm vibration unceasingly, thus two sound. Soundboard and diaphragm rigid connection, can make the vibration smooth sounds more pleasing to the ear (namely electromagnet principle).