Eddy-Current Paint Coating Thickness Gauge

The eddy current coating thickness gauge generates a high-frequency electromagnetic field through the probe, creating an eddy current effect on the surface of the metal substrate. The intensity of the eddy current varies with the thickness of the non-conductive coating, and the instrument measures the electromagnetic impedance difference to convert it into thickness. It is used to measure the thickness of coatings such as paint, plastic, and anodized layers on non-ferrous metal substrates like aluminum and copper. It is commonly employed in the inspection of surface coatings for automotive and aerospace components.
Selection
When selecting, confirm that the substrate is non-ferrous and that the measurement range covers the thickness of the coating to be tested. The probe size must match the shape of the test piece, with a small probe chosen for curved surface measurements. Verify the instrument’s calibration method and its adaptability to environmental temperature. Consider data storage functionality and error range, with portable devices suitable for on-site use and fixed types for continuous inspection on production lines.

Terms

Standards

Instruments

Using magnetic Induction and eddy Current dual principle, measurement range 0-2000μm, accuracy +/- 3%, equipped with ruby probe wear and corrosion resistance, support automatic identification of iron-based and non-iron-based materials, no need to calibrate easy to operate.

$ 175.00

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

Using magnetic Induction and eddy Current dual thickness measurement method, Measurement range 0-1500 μm, resolution 0.1 μm, support continuous and single measurement, with statistical function and 500 sets of data storage.

$ 264.00

Using magnetic and eddy current two thickness measurement methods, Measurement range 0-1250μm, with automatic identification of iron and non-iron matrix function, support single point and two point calibrating, with power supply undervoltage indication and statistical function.

$ 170.00

Measurement range of 0-1250 μm using eddy Current principle, single continuous dual mode and large Probe design, support Automatic calibration matrix recognition, error of only +/- 3% resolution up to 0.1 μm.

$ 320.00

Using magnetic Induction and eddy Current principle, Measurement range 0~ 1250μm, error +/- 3%, support Bluetooth transmission and automatic identification of matrix material, suitable for one-handed operation.

$ 564.00

Using magnetic Induction and eddy Current dual principle, Measurement range 0~ 500μm, resolution of 0.1μm, wear-resistant hard metal probe and Automatic calibration function, support USB data communication.

$ 275.00

Using magnetic Induction and eddy Current dual principle, Measurement range 0~ 2000µm, error +/- 1~ 3%, with automatic identification of matrix material and memory Adjustment, support split Probe to enhance mobility.

$ 338.00

Using magnetic Induction and eddy current double thickness measurement method, Measurement range 0-1250μm, error +/- 3%, automatic identification of iron and non-iron matrix, with statistical function and undervoltage indication, easy to operate.

$ 180.00

Measurement range 0~ 1500μm using eddy Current principle, error +/- 1%, equipped with anti-wear Siamese Probe suitable for one-handed operation, IP65 Protection Rating, can measure more than 60 readings per minute, store 1000 Measured values.

$ 979.00

Using magnetic Induction and eddy Current dual principle, Measurement range 0-2000μm, resolution up to 0.1μm, with automatic identification of substrate function and Data storage ability, support surface measurement minimum convex 1.5mm.

$ 419.00

Using eddy Current Measurement principle, Measurement range 0~ 1250μm, resolution 0.1μm, with 500 sets of Data storage, over limit alarm and automatic shutdown function, split Probe design is easy to operate on site.

$ 280.00

Using magnetic Induction and eddy Current dual principle, Measurement range 0-2000μm, resolution up to 0.1μm, with automatic matrix recognition and 99 sets of Data storage statistical functions, support surface and minimum area measurement.

$ 592.00

Using magnetic Induction and eddy Current principle, Measurement range 0~ 1250μm, resolution 0.1μm, can store 99 sets of data and support USB and Bluetooth transmission, equipped with wear-resistant hard metal probe.

$ 525.00

Using magnetic Induction and eddy Current principle, Measurement range 0~ 500um, resolution 0.1μm, wear-resistant hard metal probe and Automatic calibration function, support single and continuous Measurement mode.

$ 275.00

Articles

Selection of Coating Thickness Gauges Using Magnetic and Eddy Current Methods on Different Substrates
This article introduces two main methods for coating thickness gauges: the magnetic method and the eddy current method. When choosing a method, the key is to determine it based on the electromagnetic properties of the substrate.
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.
Comparison of Dual-Principle Instruments: Magnetic Induction vs. Eddy Current for Coating Thickness Measurement
This article compares the principles of two coating thickness gauges. The choice of method depends on the substrate material: magnetic induction is used for magnetic metals, while eddy current is applied for non-magnetic metals.
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.
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.
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.