What sensor means?

Introduction to Sensors

The sensor is a kind of detection device, which can feel the measured information, and can transform the felt information into an electrical signal or other required form of information output according to certain laws to meet the requirements of information transmission, processing, storage, display, recording and control.

The characteristics of sensors include: miniaturization, digitalization, intelligence, multi-function, systematization, and networking. It is the first link to realize automatic detection and automatic control. The existence and development of sensors allows objects to have senses such as touch, taste and smell, and makes objects slowly become alive. Usually according to its basic perception function, it is divided into ten categories, such as thermal element, photosensitive element, gas sensitive element, force-sensitive element, magnetic sensitive element, moisture sensitive element, sound sensitive element, radiation sensitive element, color sensitive element and taste-sensitive element, and the role of the sensor is also very wide.

Application areas

The low cost and ease of use of vision sensors have attracted machine designers and process engineers to integrate them into a variety of applications that once relied on labor, multiple photoelectric sensors, or no inspection at all. Industrial applications for vision sensors include inspection, metrology, measurement, orientation, defect detection, and sorting. Here are just some examples:

In the car assembly plant, check whether the beads applied by the robot to the door frame are continuous and have the correct width;

In the bottling plant, verify that the cap is properly sealed, that the filling level is correct, and that no foreign matter has fallen into the bottle before capping;

In the packaging line, make sure the correct packaging label is applied in the right place;

In pharmaceutical packaging lines, the blister packaging of aspirin tablets is inspected for damaged or missing tablets;

At Metal Stamping, stamped parts are inspected at a rate of more than 150 pieces per minute, more than 13 times faster than manual inspection.

Main role

Relying on people's own organ sensations alone, research shows that their function of obtaining external information is far from enough. To solve this problem, sensors are needed. It can be said that the sensor is an extension of human beings, which is called "electric five senses" by the industry.

2. The main ways and means for sensors to obtain information in the field of nature and production.

3. In modern industrial production, often can not lack the assistance of sensors, especially in the automated production process, to use a variety of sensors to monitor and control the parameters of the production process, so that the equipment works in the normal state or the best state, and the product to achieve the best quality.

4. In the research of basic disciplines, sensors have a more prominent position. For example, at the macroscopic level, it is necessary to observe the vast universe thousands of light years, microscopic to observe the particle world as small as FM, and vertically to observe the evolution of celestial bodies up to hundreds of thousands of years, and the instantaneous reaction as short as s. In addition, there are various extreme technology research that play an important role in deepening material understanding and developing new energy and new materials, such as ultra-high temperature, ultra-low temperature, ultra-high pressure, ultra-high vacuum, ultra-strong magnetic field, ultra-weak magnetic field and so on.

5. Sensors have long penetrated into extremely broad fields such as industrial production, space development, marine exploration, environmental protection, resource investigation, medical diagnosis, bioengineering, and even cultural relics protection. It is no exaggeration to say that from the vast space, to the vast ocean, to a variety of complex engineering systems, almost every modern project is inseparable from a variety of sensors.

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