Dual-use Thickness Gauge

The dual-purpose thickness gauge utilizes magnetic induction and eddy current principles to measure the surface coating thickness of ferrous and non-ferrous materials, respectively. When the probe contacts the sample, the coating thickness is calculated based on changes in the magnetic field or eddy current losses, enabling the detection of coating quality for materials such as paint, electroplating, and plastic. It is suitable for on-site rapid inspections in industries such as metal processing and automotive manufacturing.
Selection
When selecting, consider matching the probe principle with the substrate type: use magnetic induction for ferrous bases and eddy current for non-ferrous bases. The measurement range should cover the expected thickness, and the accuracy should be selected according to process requirements. Pay attention to the probe shape to adapt to the curvature of the measured surface. Portable types are suitable for field operations, while fixed types are suitable for production lines. Verify the instrument calibration certificate and the wear resistance of the probe.

Terms

Standards

Instruments

Using magnetic eddy current dual-use principle, Measurement range 0~ 1250 microns, accuracy +/- (1% -3%) H + 1.5μm, with continuous and single Measurement mode, support Data storage and statistical functions, Probe Sensitivity is high, suitable for a variety of matrix materials.

$ 428.00

With iron-based and non-iron-based dual-use function, resolution up to 0.1um, test range 0~ 1250um, support single and continuous measurement, automatic identification of matrix material, stable and portable operation.

$ 356.00

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

AC-DC dual-use design, Readability 0.1g, Stabilization time ≤ 3s, with counting and full-scale peeling function, easy to operate.

$ 191.00

AC-DC dual-use design, Readability 0.1g, Stabilization time ≤ 3s, with Automatic calibration and counting functions, easy and efficient operation.

$ 169.00

Measurement range 0~ 1500μm, error +/- (3% + 1.5μm), support continuous and single Measurement mode, automatic identification of matrix material, Data storage 2000 values, easy and sensitive operation.

$ 190.00

Using handwheel swirl/spin screw to control displacement, smooth operation and simple operation, rated load 500N, Test Travel 0~ 200mm, vertical horizontal dual-use design for easy installation and use.

$ 148.00

Using alloy integrated Probe and 32-bit processing chip, support magnetic Induction and eddy Current dual principle, measurement range of 3000 μm, error +/- 3%, with automatic substrate identification and 2000 sets of data storage, easy to operate and good repeability.

$ 267.00

AC and DC dual-use design, weighing range 1200g, Readability 0.1g, Stabilization time ≤ 3s, with Automatic calibration and counting functions, easy to operate.

$ 159.00

Weighing range 600g, accuracy 0.01g, with Automatic calibration and AC/DC dual-use design, support full scale peeling and counting functions, standard RS232 interface for data transmission.

$ 327.00

Readability up to 1mg, Capacity 200g, with LCD backlight display, AC and DC dual-use, full scale peeling, counting function and a variety of unit conversion, Stabilization time ≤ 3 seconds, suitable for precision weighing environment.

$ 356.00

Using high precision Sensor, weighing accurate and stable, repeatability error 0.2g, Linearity 0.3g. Configure battery to realize AC and DC dual-use, LCD with backlight display, with weighing, peeling, counting, unit conversion and other functions.

$ 122.00

Temperature control accuracy of +/- 0.05 ℃, support room temperature to 300 ℃ range of water and oil dual-use, equipped with high temperature centrifugal pump head 5 Meters, domestic circulation system to achieve uniform temperature field.

$ 825.00

Readability 1mg, Capacity 100g, with LCD backlight display, AC-DC dual-use, full scale peeling, counting function and a variety of unit conversion, Stabilization time ≤ 3 seconds, suitable for accurate weighing needs.

$ 296.00

Adopt High Precision Sensor to ensure accurate and stable weighing, configure battery to support AC and DC dual-use, 0.01g High Accuracy and ≤ 3 seconds Fast Response, with weighing, peeling, counting, unit conversion and other functions, front horizontal bubble is easy to adjust.

$ 130.00

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.
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.
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.
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.
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.
Eddy current thickness gauge detects coatings on non-ferrous metals.
The eddy current thickness gauge operates on the principle of electromagnetic induction, generating an alternating magnetic field through the probe coil, which induces eddy currents on the surface of non-ferrous metal substrates.
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.