What are the characteristics of online thickness gauges

Source：m.sbahotel.cn Release date： 2025-03-05

Online thickness gauge is an instrument used for real-time measurement of object thickness, widely used in various industries such as steel, non-ferrous metals, plastics, paper, etc. Although different types of online thickness gauges have different principles and application scenarios, they usually have the following characteristics:
1. High precision measurement
Excellent sensor technology: Online thickness gauges generally use high-precision sensors such as laser sensors, ultrasonic sensors, beta ray sensors, etc. These sensors can accurately capture the thickness information of objects, with measurement accuracy reaching the micrometer level, meeting the requirements of various high-precision production processes.
Automatic calibration function: In order to ensure the accuracy of measurements, online thickness gauges usually have an automatic calibration function. It can automatically calibrate the measurement system on a regular basis, eliminate measurement errors caused by environmental factors, equipment aging, and other reasons, and ensure the stability and reliability of measurement results.
2. Real time online measurement
Continuous monitoring: Online thickness gauges can continuously measure objects on the production line and obtain real-time information on the thickness changes of objects during the production process. This allows operators to promptly detect thickness abnormalities, adjust production parameters in a timely manner, and avoid batch quality problems.
Quick response: With a fast response speed, it can complete a measurement in a very short time and promptly feedback the measurement results to the control system. Generally speaking, the measurement cycle can be in milliseconds or even shorter, which can meet the requirements of high-speed production lines for measurement speed.
3. Non contact measurement
Non destructive testing: Most online thickness gauges use non-contact measurement methods, such as laser thickness gauges, infrared thickness gauges, etc. This measurement method will not cause any damage to the surface of the object being measured, and is particularly suitable for thickness measurement of some objects that are not allowed to be in contact or are easily damaged, such as ultra-thin materials, soft materials, coating layers, etc.
Adapt to complex environments: Non contact measurement is not affected by factors such as surface roughness, shape, and material of the object being measured, and can work normally in harsh industrial environments such as high temperature, high pressure, humidity, and dust. For example, on the hot rolling production line of a steel plant, laser thickness gauges can accurately measure the thickness of steel plates in high temperature and dusty environments.
4. Data processing and transmission
Data storage and analysis: The online thickness gauge has powerful data storage and analysis functions, which can store a large amount of measurement data and perform statistical analysis on the data, such as calculating the average value, standard deviation, etc. By analyzing the data, operators can understand the stability of the production process, identify potential quality issues, and provide a basis for optimizing the production process.
Remote transmission and monitoring: Supports multiple data transmission methods, such as Ethernet, RS485, USB, etc., which can transmit measurement data in real-time to the remote monitoring center or upper computer system. Operators can remotely monitor measurement data through terminal devices such as computers or mobile phones, achieving remote operation and management, and improving the automation level and management efficiency of production.
5. Multi functionality and compatibility
Multiple measurement modes: Some online thickness gauges can provide multiple measurement modes according to different measurement needs, such as single point measurement, multi-point measurement, scanning measurement, etc. Users can choose the appropriate measurement mode based on the shape, size, and measurement requirements of the object being measured to obtain more accurate thickness information.
Compatible with multiple materials: able to adapt to thickness measurements of different materials, including metal, plastic, rubber, glass, paper, etc. By adjusting measurement parameters and algorithms, online thickness gauges can accurately measure objects of different materials, meeting the production needs of different industries.
6. Low maintenance costs
Simple structure: The online thickness gauge has a relatively simple structure, mainly composed of sensors, controllers, display devices, etc., without complex mechanical transmission components, reducing maintenance costs and downtime caused by mechanical failures.
Long service life: Using high-quality components and excellent manufacturing processes, it has high reliability and stability, and a long service life. At the same time, some thickness gauges also have a fault self diagnosis function, which can detect and alarm faults in a timely manner, making it convenient for maintenance personnel to carry out quick repairs and reducing maintenance costs.

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