In order to obtain information from the outside world, humans must rely on their sensory organs. However, relying solely on sensory organs is far from sufficient for studying the laws of natural phenomena and for production activities. To adapt to this situation, sensing is needed. Therefore, it can be said that sensors are an extension of the five senses, also known as electrical senses.
First, what is a sensor?
A sensor, as the name suggests, is a detection device that converts measured information into the required form of information output. It is the primary link in realizing automatic detection and automatic control. In other words, a sensor is an electronic device that can convert energy from one form to another, hence the name sensor.
With the advent of the new technological revolution, the world has entered the information age. In the process of utilizing information, the first problem to solve is to obtain accurate and reliable information, and sensors are the main way and means to obtain information in the natural and production fields.
Electronic technology is developing rapidly, and we have created many sensors that can perceive the things around us. Many electronic devices operate without human supervision. Sensors play an indispensable role in monitoring human activities and can provide this information to other electronic devices as a control reference.
Industrial control refers to industrial automation control, which is mainly achieved through a combination of electronic, electrical, mechanical, and software technologies. It primarily involves using computer technology, microelectronics technology, and electrical methods to make factory production and manufacturing processes more automated, efficient, precise, controllable, and visible.
The most commonly used sensor types in industrial automation include photoelectric sensors, proximity sensors, fiber optic sensors, displacement sensors, and pressure sensors.
Sensors have long since permeated an extremely wide range of fields, including industrial production, space exploration, ocean exploration, environmental protection, resource surveys, medical diagnosis, bioengineering, and even cultural relic preservation. It is no exaggeration to say that from the vast expanse of space to the boundless ocean, and to various complex engineering systems, almost every modern project relies on a variety of sensors.
It is evident that sensor technology plays a crucial role in economic development and social progress. Countries worldwide attach great importance to the development of this field. It is believed that in the near future, sensor technology will experience a leap forward, reaching a new level commensurate with its significant position.
