How to Choose the Right Application Sensor?

Introduction

In order to obtain information from the outside world, people must resort to the sensory organs.

And by relying on people's own sensory organs, their functions in researching natural phenomena and laws and production activities are far from enough. To accommodate this situation, sensors are needed. Therefore, it can be said that the sensor is an extension of the human five senses, also known as electric five senses.

With the advent of the new technological revolution, the world has entered the information age. In the process of using information, the first thing to be solved is to obtain accurate and reliable information, and the sensor is the main way and means to obtain information in the natural and production fields.

In modern industrial production, especially in automated production processes, various sensors are used to monitor and control the various parameters of the production process, to operate the equipment in a normal or optimal state, and to achieve the best quality of the product. Therefore, it can be said that without many excellent sensors, modern production will lose its foundation.

In the basic research, the sensor has a prominent position. The development of modern science and technology has entered many new fields: for example, to observe the universe of thousands of light years on a macroscopic level, to observe the particle world as small as fm on the microscopic level, and to observe the evolution of celestial bodies for hundreds of thousands of years in the vertical direction. , an instant response as short as s. In addition, there have been various extreme technological studies that have an important role in deepening material understanding, exploring new energy sources, and new materials, such as ultra-high temperature, ultra-low temperature, ultra-high pressure, ultra-high vacuum, super-strong magnetic field, and ultra-weak magnetic field. Obviously, it is impossible to obtain information that is not directly accessible to human senses, and that there is no suitable sensor. The obstacles of many basic scientific research are firstly that there are difficulties in obtaining object information, and the emergence of some new mechanisms and high-sensitivity detection sensors often leads to breakthroughs in this field. The development of some sensors is often the pioneer of some marginal discipline development.

Sensors have long penetrated into areas such as industrial production, space development, ocean exploration, environmental protection, resource surveys, medical diagnostics, bioengineering, and even cultural relics protection. It is no exaggeration to say that from the vast space, to the vast ocean, to various complex engineering systems, almost every modern project can not be separated from a variety of sensors.

It can be seen that the important role of sensor technology in developing the economy and promoting social progress is very obvious. All countries in the world attach great importance to the development of this field. It is believed that in the near future, sensor technology will have a leap to reach a new level commensurate with its important position.

Article Core	Sensor
Purpose	Introduce how to choose the right application sensor.
Application	Consumer electronics, automobile, industry and so on.
Keywords	Sensor

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Accelerometers measure acceleration, tilt, vibration or shock and are therefore suitable for a wide range of applications from wearable fitness devices to industrial platform stabilization systems. There are hundreds of accelerometer devices on the market to choose from, with varying costs and performance. The latest MEMS capacitive accelerometers are used in applications traditionally dominated by piezoelectric accelerometers and other sensors. The new generation of MEMS accelerometers provides solutions for applications such as CBM, Structural Health Monitoring (SHM), Asset Health Monitoring (AHM), Vital Signs Monitoring (VSM) and IoT wireless sensor networks. However, with so many accelerometers and so many applications, choosing the right accelerometer is not easy.

There are no industry standards that define which category an accelerometer belongs to. The general classification of accelerometers and their corresponding applications are shown in Table 1. The illustrated bandwidth and g-value ranges are typical values that accelerometers use in the listed end applications.

Accelerometer level	Main application	Bandwidth	Range of g values
Consumer Electronics	Motion, static acceleration	0 HZ	1 g
Automobile	Collision/stability	100 HZ	<200g/2g
Industry	Platform stability / tilt	5 HZ to500 HZ	25g
Tactics	Weapon/aircraft navigation	<1 KHZ	8g
Navigation	Submarine/aircraft navigation	>300 KHZ	15g

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