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January 23, 2021
What is the working principle of the laser diameter gauge?
The laser diameter gauge is now an indispensable measuring tool for measuring rolled products, steel pipes, and round products. It can achieve continuous high-precision measurements at the fastest speed, and convey the most accurate measurements to the staff at the fastest speed. You can also set data reminders, the first time the data is not reached or exceeded, it will be reminded by the display screen and the alarm sound.
What are the measuring methods of the online diameter gauge?
Laser scanning diameter measurement is designed according to optical geometric principles. It has strong laser adaptability, easy installation and use, and high measurement accuracy. It can be combined with computer technology to achieve intelligent control of measurement data. At the same time, some laser scanning diameter measurement can be achieved through the network remote control. Laser scanning diameter measurement has the characteristics of non-contact, high speed and high precision, and is often used for online inspection and quality control in the nuclear industry, aerospace and other fields.
Here we have selected four diameter measurement methods, and made a detailed introduction, analyzed the advantages and disadvantages of various measurement methods, and selected the best measurement method:
The laser scanning diameter measuring method is elaborated on the design and realization of the laser scanning diameter measuring instrument. The mechanical system, optical system and control system are designed, and the motor technology, scanning prism, laser technology, laser collimation and focusing, lens, and motor phase-locked loop control technology involved in the system are explained in detail and analyzed. The effects of the processing accuracy of the regular octahedral scanning prism, the installation accuracy of optical parts, the speed fluctuation of the scanning motor, and the edge signal detection on the measurement accuracy of the system are discussed, and the corresponding solutions are given.
It comes from the actual production needs of the nuclear industry. Due to the particularity of nuclear fuel rods, traditional measurement methods cannot be used to measure the diameter of nuclear fuel rods. A targeted measurement system must be developed to ensure the working of nuclear fuel assemblies. Safety and reliability.
The online diameter gauge has a transmitter and a receiver. A light curtain is played out at the transmitting end, and the receiving end receives the light curtain. If the light curtain is blocked by a pillar, a shadow will be formed on the receiving end, and the diameter of the pillar can be measured. This kind of sensor is also called a light curtain micrometer, the resolution can reach 0.1 microns, and the linearity can reach 3 microns. It is a very precise sensor.