Thickness Measuring Instrument

Measuring thickness gauges detect material thickness through methods such as ultrasonic waves, electromagnetic induction, or mechanical contact. They are used for measuring the thickness of coatings, films, sheets, and other materials, and find applications in quality inspection and production control.
Selection
When selecting a thickness gauge, consider factors such as the material type (e.g., metal or non-metal), thickness range, accuracy requirements, environmental conditions (e.g., temperature), and operation mode (e.g., portable or fixed installation).

Terms

Standards

Instruments

The instrument is dedicated to measuring the thickness of sheet materials. The measurement head contacts the workpiece to compress about 0.15mm and then has a zero reading. It can switch different display formats to meet the standard testing requirements.

$ 461.00

Made of titanium and aluminum, equipped with stainless steel cutters and LED lighting Microscope, Measurement range 20-2000μm, unique swirl/spin system includes multiple cutters for precise measurement of Coating thickness and evaluation of substrate defects.

$ 296.00

Measurement range 2-200μm with four stainless steel blades, LED display mirror and unique swirl/spin cutting system for accurate measurement of Coating thickness and evaluation of substrate defects.

$ 296.00

Measurement range 1.0-245 mm, error +/- (0.5% H + 0.1) mm, with backlight display and sound speed back measurement function, support a variety of materials Film thickness measurement.

$ 167.00

Measurement range 1.0-300 mm, accuracy +/- 0.5%, with backlit LCD display and coupling prompt function, support Speed of sound back measurement and metric-to-inch conversion, suitable for a variety of material thickness measurements.

$ 280.00

Using CR12 molybdenum vanadium material to ensure durability, providing 75-600μm multi-film thickness range, double-sided design can complete different thickness Spreader at one time, effective application width 80mm to meet the requirements of standard samples.

$ 293.00

Measurement range 1.5~ 200mm, error +/- (0.5% H + 0.2) mm, with low voltage prompt function, portable design for outdoor use, suitable for thickness measurement of various materials such as metals, ceramics, plastics.

$ 315.00

Impact method is adopted, the maximum thickness of test plate is 125mm, built-in bubble level and height limit ring, drop weight mass 1000g, punch diaMeter 20mm, die base aperture 27mm.

$ 4267.00

Using eddy Current thickness measurement principle, Measurement range 0-1000μm, resolution 0.1μm, minimum measurable convex curvature 3mm, with automatic shutdown and low voltage prompt function.

$ 267.00

Wire-wound design, can be prepared 50 micron wet film thickness, application width 200mm, suitable for soft materials such as paper, Spinning & weaving pRoducts, to ensure uniform sample and accurate thickness control.

$ 100.00

The eddy Current principle is used for measurement of nonconductive coatings on non-ferrous metal substrates, with a thickness range of 0~ 625μm and an error of +/- 3%. It has IP65 Protection Rating and fast measurement capabilities of more than 60 readings per minute.

$ 1338.00

Precise control of ink layer thickness, the minimum Basis Weight unit is 0.01CC, and the usage of Spot Color inks is predicted by calculation, which is suitable for ink contrast and color concentration detection.

$ 332.00

Equipped with dual probes for simultaneous measurement of asperity and Coating thickness, Measurement range 3.4mm, minimum scale 1μm, support corrosion pit depth detection, in line with international standards such as ISO 2808.

$ 997.00

Adopting 15mm wall thickness high-quality Organic Glass sealing barrel, equipped with automatic constant pressure gas filling function, Vacuum Level range -90~ 0kPa, to achieve automated testing process without manual operation.

$ 748.00

Measurable Film thickness 0.4-8 mm, accuracy 0.5HW, mechanical compression spring design durable, high toughness table glass anti-Impact, support a variety of Hardness value conversion, suitable for soft metals such as aluminum alloy.

$ 477.00

Articles

Ultrasonic Thickness Gauge Selection: Technical Considerations for Probe Configuration and Measurement Modes
This article primarily introduces the technical factors to consider when selecting an ultrasonic thickness gauge. In terms of probe configuration, the frequency affects both resolution and penetration depth, while crystal size determines adaptability to curvature and surface conditions. Dual-element probes offer a smaller dead zone compared to single-element probes, and delay-line probes are suitable for thin-wall and high-temperature applications.
Mechanical thickness gauge for measuring film thickness uniformity.
The mechanical thickness gauge assesses the uniformity of film thickness through contact measurement. During measurement, the probe contacts the sample under standard pressure, converting displacement into a thickness reading.
Application of Coating Thickness Gauges in Electroplating Thickness Detection
Coating thickness gauges are used to measure the thickness of electroplated layers, primarily employing the electromagnetic induction method for measuring non-magnetic coatings on magnetic substrates, or the eddy current method for measuring insulating coatings on non-magnetic metal substrates.
Coulometric thickness gauge measures the sealing quality of anodic oxide films.
This article introduces a method for assessing the sealing quality of anodic oxide films using a coulometric thickness tester. The sealing quality affects the corrosion resistance and wear resistance of the oxide film. Based on electrochemical principles, the coulometric thickness tester evaluates the sealing effectiveness by measuring the electric charge required to dissolve the oxide film, providing objective and repeatable results.
Ultrasonic thickness gauge for detecting thick coatings and composite coatings.
Ultrasonic thickness gauges measure coating thickness using the principle of ultrasonic pulse reflection, calculating the result based on the propagation time of sound waves in the material and the speed of sound. When detecting thick coatings and composite coatings, challenges such as acoustic attenuation of the material, unknown sound speed, and signal recognition at multi-layer interfaces must be addressed.
Eddy current thickness gauge measures metal coatings on non-conductive substrates.
The eddy current thickness gauge utilizes the principle of electromagnetic induction, generating an alternating magnetic field through the probe coil to induce eddy currents in the metal coating, thereby measuring thickness based on changes in coil impedance.
Coulometric Method Coating Thickness Gauge for Non-Destructive Measurement of Precious Metal Coatings
The coulometric coating thickness gauge measures the thickness by calculating the amount of electricity required to dissolve the precious metal coating through the principle of electrolytic dissolution. This method is non-destructive to the overall sample, only forming tiny electrolytic spots.
Application of Electrolytic Thickness Tester in Quality Control of Precision Electroplating Layers
The electrolytic thickness gauge measures coating thickness through the principle of electrochemical dissolution, calculating based on Faraday's law, offering high accuracy and independence from calibration.
Ultrasonic Thickness Gauge Measures the Thickness of Flexible Packaging Materials
This article introduces the principles, technical points, and operational procedures for measuring the thickness of flexible packaging materials using an ultrasonic thickness gauge. It is based on the principle of ultrasonic pulse reflection, which calculates thickness by measuring the propagation time of sound waves through the material.
Magnetic thickness gauge measures the thickness of coatings on steel surfaces.
Magnetic thickness gauges are used to measure the thickness of non-magnetic coatings on ferromagnetic substrates such as steel, based on the principles of magnetic induction or changes in magnetic attraction. Prior to use, calibration should be performed according to relevant standards, and attention should be paid to factors such as substrate characteristics, workpiece shape, and surface conditions that may affect the measurements.
The principle of measuring dry film thickness with a coating thickness gauge
Coating thickness gauges measure dry film thickness through non-destructive methods, with commonly used principles including electromagnetic induction, eddy current, and ultrasonic methods.
Standard Operating Procedure for Zero Calibration and Substrate Calibration of Coating Thickness Gauges
This article introduces two key calibration methods for coating thickness gauges: zero-point calibration and substrate calibration. During operation, it is important to ensure that the probe is perpendicular, pressure is applied evenly, and regular calibration and recording are maintained. These steps effectively enhance measurement accuracy and meet industry standard requirements.
Differences in Measurement Principles Between Magnetic Method and Eddy Current Method for Coating Thickness Gauges
Coating thickness gauges primarily utilize two measurement principles: magnetic method and eddy current method. The selection of the method should be based on the characteristics of the substrate material to ensure measurement accuracy.
Selection of Coating Thickness Measurement Methods: Coulometry vs. Dissolution in Electrolytic Thickness Gauges.
This article compares two techniques in electrolytic thickness gauges: the coulometric method and the dissolution method. The coulometric method measures coating thickness through electrochemical dissolution, making it suitable for single-layer metal coatings with simple operation and high accuracy. The dissolution method, on the other hand, measures thickness via chemical dissolution, making it more appropriate for multilayer or complex coatings.
What is a Coating Thickness Gauge? A Complete Analysis of Its Principles, Usage, and Application Areas
The article systematically elaborates on the working principles of two core measurement techniques, magnetic induction and eddy current, detailing the standard measurement process from calibration to data recording, and conducting an in-depth analysis of the influence of substrate characteristics, geometric shapes, and environmental factors on measurement accuracy.