Reasons for using a laser thickness gauge to measure plate thickness
Now manufacturers pay more and more attention to the degree of automation in the production, so the thickness measurement of the plate is also constantly developing towards automation, laser thickness gauge is now commonly used thickness online measurement equipment, with high measurement accuracy, real-time good, no radiation hazards and many other advantages.
Laser thickness gauge is composed of the upper and lower two opposing laser ranging sensors, when the work of the upper and lower two sensors were measuring the distance between the sensor and the object to be measured on the lower surface, with the total distance between the two sensors minus two sensors to measure the distance can be obtained by the thickness of the object to be measured.
1, laser thickness gauge and ray thickness gauge comparison
Ray thickness measurement and the measured object temperature and material are related, although it can be corrected, but there are residuals. For a given detection sensitivity, with the measured thickness increases, to ensure the same measurement accuracy, its radiation energy increased exponentially, thus limiting its application in the online thickness measurement of medium-thickness plate. If you want to maintain the same measurement accuracy and the same response time, if the thickness of the same material to be measured doubled, the required dose of radiation increased to 7.8 times the original. So ray thickness measurement of thicker metal plate thickness measurement of its energy with the thickness increases dramatically.
Laser thickness gauge is not affected by the temperature of the measured object and material, to achieve high precision online measurement, at the same time, due to the radiation ray thickness gauge, the relevant review process is very much, while the laser thickness gauge is not harmful, can be assured that the use of, that is, buy and use.
2, laser thickness gauge and capacitance thickness gauge
Capacitance thickness measurement is essentially measuring the size of the air gap δ and the thickness of the medium. This variable gap measurement of the most ways available to measure the conductive materials and uniform non-conductive materials, the domestic can be measured up to 5mm, foreign can be measured up to 10mm.
Capacitance thickness gauge on the thickness of the plate can not be measured, laser thickness gauge is not subject to this limitation, the thickness of large plates can also be measured online, wide measurement range, can be customised according to the production of the thickness of the plate value.
3, ultrasonic thickness gauge
Ultrasonic thickness gauge is also affected by the material, and need to contact the measured plate.
Laser thickness gauge can be non-contact online measurement, and measurement accuracy is higher.
Laser thickness gauge effectively improve the working environment, with accurate measurement, high precision, practical, safe and reliable, no radiation, non-contact measurement and other manual measurement and other measurement methods can not be compared to the advantages, and for rolling steel thickness control provides accurate information, thereby improving productivity and product quality, reducing labour intensity.
