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Home > News > What Can Be Measured With a Thickness Gauge?

What Can Be Measured With a Thickness Gauge?

Aug. 17, 2022

Ultrasonic thickness gauges work by using ultrasound to measure thickness without damaging the material. Ultrasonic Thickness Measurement (UTM) can determine the thickness of solid materials. The use of ultrasonic thickness gauges on ships and at sea makes working with hazardous materials safer and more reliable. Steel thickness gauges measure parts and components.


What can be measured?

By using the ultrasonic thickness gauge principle, almost any engineering material can be measured with a certain degree of accuracy, including metals, ceramics, glass, polymers, composites, and polymers.


Depending on the measurement requirements, specific layers or coatings with a multi-layer structure can be measured. Biological samples and liquid levels can be measured with ultrasound. Ultrasonic measurements do not require any cutting or slicing, making them completely non-destructive.


Some examples of incompatible materials include wood, paper, concrete, and foam products. These materials lack sufficient permeability to high-frequency sound waves to allow ultrasonic measurements.

Electromagnetic Ultrasonic Thickness Gauge

 Electromagnetic Ultrasonic Thickness Gauge

What can thickness gauges measure?

Digital thickness gauges and meters are highly versatile devices that can be used in a wide range of applications.


1. Building and Construction

Thickness gauges are often used to test the thickness of walls and building materials. By performing thickness tests, builders and surveyors can ensure that solid walls do not contain any defects that could make a building unstable. Similarly, copper pipes and industrial piping can be tested regularly to detect corrosion.


2. Industrial tools

One of the most common applications for coating thickness gauges is for industrial-grade tools such as saws and power tools, where a sufficient coating is required to ensure that the tool is both hard-wearing and safe.


3. Medical

Coating thickness gauges are used to ensure that molded plastic coatings on medical tools and instruments provide adequate protection and are safe to use.


4. Archaeology  

Students and scientists can use non-destructive ultrasonic testing methods to analyze the thickness of excavated jars and sensitive materials.

Detection of EMAT plate

Detection of EMAT plate 

5. Fuel/chemical storage tanks

Ultrasonic testers can indicate whether excessive corrosion is occurring in fuel and chemical storage tanks.


6. Automotive Industry

Most types of thickness gauges are used in the automotive industry and can be used to measure the thickness of sheet metal and highlight defects in bodywork, as well as for measuring the thickness of glass panels used in vehicle windscreens. Ultrasonic thickness gauges are often used to highlight manufacturing defects, while specialist paint coating gauges are used in automotive car repairs and body shops to apply the appropriate thickness of metal paint.


7. Engineering and Manufacturing

Following the automotive industry, large factories and engineering plants producing anything from toys to vehicle and machine parts often require thickness gauges to ensure the quality and consistency of parts on the production line. In engineering, particularly for aircraft components, there is a need to rigorously check for flaws and defects; thickness gauges are used to accurately measure the thickness of materials to ensure safety.

Detection Of Rail By Phase Array

 Detection of Rail By Phase Array

8. Highways and local authorities

Thickness gauges can also be used to test the thickness of supporting metal and concrete columns on bridges to ensure that they are compliant and not prematurely damaged. These devices are most commonly used to detect air pockets in concrete and corrosion on steel frames and supports.


9. Glass manufacturing

Ultrasonic thickness gauges are used to measure the thickness of glass in furniture mirrors, casing window glass, vehicle windshields, and reflective surfaces.


10. Jewellers

Specialist gold testers can be used to measure the thickness of the gold and other precious metals. By using ultrasonic thickness measuring equipment, jewelers can check whether gold items contain a core of different materials.

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