A sensitive to sound capacitance type is stationed in the buy inside sensor extremely body mike. Sound wave makes inside mike halt extremely body film is oscillatory, cause the change of capacitance, and the tiny voltage that generation changes to meet an emergency to it. This one voltage is changed into the voltage of 0-5V subsequently, through A/D changeover is collected by data implement accept, convey the computer. It is used receive sound wave, image of indication audio vibration. But cannot undertake metrical to the intensity of noise.

 

The application of sound sensor

Well-known, the emerge as the times require of sensor changed our life greatly indeed, the advantage that creates for everybody’s life also is all-around. From heat quick component, photosensitive component, gas sensor arrives again acoustical quick component is waited a moment, sufficient already saw sort is all ready, the function is powerful and how magical sensor is great. Resembled installing the equipment of acoustical quick component, can make corresponding response as our language, feel pretty is magical is pretty amused? And instantly, the technology of sensor also is raising innovation ceaselessly in the center, but phyletic and various, the function is complex and powerful, those who cause a lot of people to know to sensor is very little, should not raise its applied range more, I see the application of sound sensor for your detailed today.

 

The definition of sensor

Sensor is one kind can transform physical quantity or chemical quantity into facilitate the parts of an apparatus of the telegraphic name that use. The definition of international Electrotechnical Committee is: “ sensor is the component of the one buy before planting in surveying a system, it changes input variable into can offer metrical signal”. The view that waits according to Gopel is: “ sensor is to include to bear the weight of body and circuit connective sensing element”, and “ sensor system is combination has some kind of information processing (imitate or number) the system of ability”.

 

The energy of sensor is changed

Active sensor can transform form of a kind of energy directly another kind, the sources of energy that outside needing, receives or incentive source. Passive sensor cannot change energy form directly, but it can control the energy that carries an input from another input or drive can, sensor assumes the job that changes the specific character of a certain object or process into the amount. ” of its “ object can be solid, liquid or gas, and their condition can be a static state, also can be dynamic (namely process) . After object character is quantified by changeover, can detect through a variety of means. The character of the object can be physical property, also can be chemistry. According to its job principle, it becomes object character or condition parameter changeover the electricity quantity that can determine, come out depart of this report signal next, send sensor system to try evaluation or designation.

 

The definition of sound sensor

What sound sensor uses is the electric microphone that has frequency reaction with human ear likeness. The transmission means of signal: Circuit magnifies signal and convey signal to British telecommunications interface. Actually, the wire service data that signal differs through 2 is collected implement. A signal inputs a line through low voltage, in 2. 5V left and right sides, another signal inputs a line through voltage, in 0V left and right sides.

 

The sound sensor application on the military affairs

Sound sensor already was at present in monitoring system of ground sensor scout wide application, its are the biggest the advantage is resolution strong. If athletic goal is personnel, can hear voice directly not only, and still can according to examine of one’s voice in speech bright if its citizenship, identity and conversational content; move the target is car, can judge car sort according to noise. Go up in the tree like a kind of suspensibility that American army uses be called“The device explore range finding of acoustics buoy ” leaves 300~400 rice, approach aural range of the person. The sound sensor application on medical treatment: Fiber-optic microphone has the crude interference rejection capacity to magnetic field, the OK at nuclear magnetic resonance applying that become the communication that resemble, it is exclusive become in nuclear magnetic resonance when resembling scanning, can mix in the patient the microphone that news report has between the doctor.

 

The sound sensor application on the life

Acoustics inbreaks detector: Besides the entrance control that can be used at the portal, return the area that the person that can use monitoring to inbreak appears. Its stress a good point is, it is usable will differentiate cause the cause that call the police. In addition, sound sensor is explored in car guard against theft and aviation wait for a respect to have involve, the to sonar system improvement of sound sensor also is contributed not small. Sundry sound accuses switch to also shine brilliantly. Japan develops development to give a kind of sound to control a television, can store the sound of two people accuses to dictate, include to switch on the mobile phone colour of channel of the job, changeover, exchange and close machine, OK vocally instruction undertakes controlling.

 

Pass small the introduction that write, everybody understands the application of sound sensor somewhat certainly. And develop increasingly in science and technology today, what is still having impossible? Probably be confined to of your cognitive and mere bureau to sound sensor of mike and so on. But in fact, it is besides your line of sight, of sound sensor go grow is dark long very rapid. Probably you once had had vocally to dominate all dream, the prospective life that as associating science and technology depicts is average, thinking wisdom and intelligent science and technology are perfect be united in wedlock. On the foundation that is carrier with intelligent science and technology, the might of sound sensor did not reach upper limit far, prospective life is walking into present life step by step. The dream is not an imagination, however the inspiration of an extremely rich originality.