Coating Thickness Measurement: Magnetic, Eddy Current or Ultrasonic?
The question we hear most is simply “which method for my substrate”. Here is how the three main routes divide the work.
Technical Articles
Choosing a Coating Thickness Gauge: Principle First, Form Second
The common mistake is starting with price and appearance. The right order is: substrate and coating decide the principle, measuring position decides the form.
What a Colour Screen Adds to a Hardness Tester
A dial asks you to crouch and squint. A monochrome digital unit puts everything on one grey screen. Colour earns its place by fixing reading, operation and traceability at once.
Surface Roughness Tester: Five Questions First-Time Buyers Ask
Almost everyone new to roughness measurement asks the same five questions. Here are the answers, without the textbook detour.
Field Calibration for Flaw Detectors: Three Steps and Four Wear Points
High misjudgement rates and poor repeatability usually come from reusing laboratory calibration on site. Calibration has to be redone where you work, and maintenance has to watch four wear points.
Setting Traverse Speed on a Roughness Tester
The speed at which the stylus crosses the surface is the parameter most people ignore. It decides both whether fine features are captured and whether the environment gets into the measurement.
Roughness Tester Reading Drift? Check These Four Layers in Order
Jumping numbers and offset results usually are not a broken instrument. Calibration, parameters, workpiece condition or environment – work down these four layers and most cases resolve.
Operating a Split-Type Roughness Tester: Five Key Points
With probe and body separated, five details decide whether the data holds up: how the probe sits, which way it travels, where you measure, what parameters you set, and who is driving.
Three Hardware Faults That Look Like Operator Error
Results that suddenly drift, repeat measurements that will not agree, an odd noise from the drive unit – three symptoms that usually point at the instrument, not at how you use it.
Three Ways to Measure Surface Roughness: Stylus, Interferometry, Laser Scattering
The same sample, three instruments, three different numbers. Usually nobody is wrong – the measurement principles differ. Here is where each one applies.
