What are the principles and applications of acceleration sensors?
The word can be said to be ubiquitous in our lives. Today we take a look at the working principle of acceleration sensors so that we can better use the electronic devices in our lives.
acceleration sensor, as the name suggests, is a device that can measure the acceleration of the product. The two types of accelerometers we commonly use in life are angular accelerometers and linear accelerometers. In life, we divide it into four categories, namely piezoelectric acceleration sensor, piezoresistive acceleration sensor, capacitive sensor, and servo sensor.
The specific application fields of acceleration sensors are mainly in the field of car safety, game control, automatic image flipping, electronic compass tilt correction, GPS navigation system dead angle compensation, pedometer function, anti-shake function, flash message function The field, hard disk protection field, equipment or terminal posture detection field, smart products and other major fields are widely involved, which shows that we understand the importance of the working principle of acceleration sensors.
Next, let's do a simple understanding of how it works. Most of our common sensors are basically a common working principle, that is, the piezoelectric effect. By the way, we will introduce the piezoelectric effect in order to let everyone better understand its working principle. Piezoelectric effect means that when some dielectrics are deformed by external influence, polarization will occur inside the crystal, and positive and negative charges will be generated on the surface of the crystal. When the external influence disappears, it will return to the uncharged initial state, which is the piezoelectric effect.
Most of the acceleration sensors that are common in life work by using the characteristics of acceleration to deform the crystal. Under normal circumstances, the deformation of this characteristic will produce a voltage, as long as we understand the relationship between voltage and acceleration, we can make the acceleration into a voltage, thereby generating power. In addition, there are other ways to do acceleration sensors, such as piezoresistive technology and light effects.
Piezoresistive acceleration sensors are the most common in the automotive industry in life. There are more and more safety accidents in cars in life, so safety has become the primary factor for everyone to buy a car, and corresponding such additional systems have also emerged. In industrial production, piezoelectric technology is the most common, the main purpose is to prevent machine failures. But in a very new production field, many people are not aware of its importance, and everyone does not know enough about it.
In our lives, we often use acceleration sensors, and the distortion of the output signal is the most common. When this happens, we mainly analyze based on the following three points: the three are the low-frequency signal-to-noise ratio of the system, the poor response, and the impact of the external environment on the signal. As long as we carefully eliminate these three areas, we can effectively solve the problem.
If you want to know more, our website has product specifications for acceleration sensors, you can go to ALLICDATA ELECTRONICS LIMITED to get more information