Thickness Gauges
Thickness Gauges
Thickness gauges are instruments used to measure the thickness of materials, coatings, films, and substrates with high precision. Depending on the application, they operate on contact, ultrasonic, magnetic, or optical principles. Contact-type thickness gauges use precision anvils to measure sheet metal, gaskets, films, and flexible materials. Ultrasonic thickness gauges can measure wall thickness from a single side, making them ideal for pipe inspection, pressure vessel monitoring, and corrosion assessment where access to both surfaces is impossible.
In industrial quality control, thickness gauges ensure consistent material specification across production batches. For coating applications, dedicated magnetic or eddy-current gauges measure coating and plating thickness over metal substrates without damaging the surface.
Typical Applications
- Sheet metal and foil thickness verification in metals manufacturing and stamping
- Ultrasonic wall thickness measurement of pipes, pressure vessels, and storage tanks
- Coating and paint thickness measurement in automotive and aerospace finishing
- PCB substrate and laminate thickness control in electronics manufacturing
- Film and paper thickness measurement in packaging and printing industries
- Corrosion monitoring and material integrity assessment in petrochemical plants
Popular Brands
Mitutoyo provides a wide range of contact thickness gauges with analog and digital readout, well regarded in precision manufacturing and metrology. Olympus and Elcometer are recognized for ultrasonic and coating thickness instruments. Proceq and DeFelsko also serve specialized corrosion and coating measurement markets.
