common flaws in coating thickness gauges and ways to fix them
A coating thickness gauge is a crucial testing tool for monitoring and ensuring the quality of products. Small measuring error, great dependability, good stability, and simplicity of operation are some of its qualities. In many different fields, it is commonly employed. During use, the coating thickness gauge will have a few issues. In an effort to assist everyone, the following editor will describe in detail the common flaws and cures for the coating thickness gauge.
The display value is unstable.
The particularity of the substance and structure of the workpiece itself, such as if the workpiece is made of a magnetic material, is the main cause of the coating thickness gauge's unreliable display. We must select a magnetic coating thickness gauge if the material is magnetic. In addition, the instrument's inability to detect temperature is due to the workpiece's attachments and surface roughness if it is a conductor, in which case we must use an eddy current coating thickness gauge. The workpiece's surface attachments and surface roughness are both very high. many.The main goal of troubleshooting is to remove the attachment by polishing the workpiece with relatively large roughness, after which you should select an appropriate coating thickness gauge.
There are too many errors in the measurement results
The preceding post clearly outlined the causes of the significant measurement error of the coating thickness gauge. Here, we briefly discuss the primary causes of the large measurement error, including the base metal's magnetization, its insufficient thickness, the edge effect, the workpiece's insufficient curvature, its excessive surface roughness, the magnetic field interference probe's installation technique, etc. We won't introduce them one by one; instead, newcomers can familiarize themselves by referring to the instrument's article.
no numbers
The test still does not show the result if the battery is fully charged, which is the most straightforward explanation for why the coating thickness gauge does not display numbers.
