What Are the Different Types of Laser Sensors?
Laser sensor: A sensor that uses laser technology to make measurements. It consists of a laser, a laser detector, and a measurement circuit. The laser sensor is a new type of measuring instrument. Its advantages are that it can realize non-contact long-distance measurement, fast speed, high accuracy, large range, strong resistance to light and electrical interference.
laser sensor
- Laser sensor: use
- Lasers can be divided into 4 types according to the working substance.
- When the laser sensor is working,
- The laser's high directivity, high monochromaticity, and high brightness can be used to achieve non-contact long-distance measurement. Laser sensors are often used for measuring physical quantities such as length, distance, vibration, speed, and azimuth. They can also be used for flaw detection and monitoring of atmospheric pollutants. [3]
- Vehicle width and height overrun detection
- The laser sensor is used for rapid measurement, and the PC kernel computer and the network programming kernel of the visual programming software VB are used for real-time data transmission and processing. At the same time, a user-friendly host computer control software is also designed. Field test data show that the system has good real-time performance and high measurement accuracy, and has certain practical value.
- Highway toll stations
- Used in highway toll stations for vehicle counting and safety protection. Teras Malaysia has applied hundreds of BEA laser sensors to its manual and automatic toll booth systems. The laser sensor adopts the time-of-flight (TOF) measurement principle, which can form 4 planes in the detection area to detect the vehicle. At the same time, the product also has functions such as rear-end collision prevention and vehicle safety protection. Compared with the traditional light curtain, the laser sensor has the advantages of high sensitivity, high accuracy, convenient installation, high cost performance and strong stability. [5]
- In 2008, the global sensor market capacity was USD 50.6 billion. Eastern Europe, Asia Pacific, and Canada became the fastest-growing regions in the sensor market, while the United States, Germany, and Japan remained the regions with the largest sensor market distribution. Zhenshangyou and other world-leading high-end sensor manufacturers have begun to enter mainland China and have set up technology development departments. As far as the world is concerned, the fastest growing sensor market is still the automotive market, and the second is the process control market, which is optimistic about the prospect of the communication market.
- Some sensor markets such as pressure sensors, temperature sensors, flow sensors, and level sensors have shown the characteristics of mature markets. The market scales of flow sensors, pressure sensors, and temperature sensors are the largest, accounting for 21%, 19%, and 14% of the entire sensor market, respectively. The main growth of the sensor market comes from emerging sensors such as wireless sensors, MEMS (Micro-Electro-MechanicalSystems) sensors, and biosensors. Among them, the compound annual growth rate of wireless sensors in 2007-2010 is expected to exceed 25%.
- The global sensor market is showing rapid growth among constantly changing innovations. Relevant experts pointed out that the main technologies in the sensor field will be extended and improved on the existing basis, and countries will compete to accelerate the development and industrialization of new-generation sensors, and competition will become increasingly fierce. In the field of high-end technical sensors, there are still other international sensor giants that have also entered the domestic market and set up a technology research and development department directly in China. The development of new technologies will redefine the future sensor market, such as the emergence of new sensors such as wireless sensors, fiber optic sensors, smart sensors and metal oxidation sensors, and market share expansion. [4]