Self-inductance Thickness Gauge

The self-inductive thickness gauge generates an alternating magnetic field through the probe coil. The metal substrate induces eddy currents that alter the coil inductance, enabling thickness measurement. It is used for detecting the thickness of coatings and plastic films, operates via contact measurement, and offers an accuracy of approximately ±1 μm.
Selection
When selecting, consider the substrate conductivity; use magnetic induction for ferromagnetic materials. The measurement range should cover the sample thickness, and the probe size should match the measurement area. Environmental temperature effects require compensation, and calibration sheets should be regularly verified. Handheld devices are convenient for on-site use, while benchtop models are suitable for laboratories.

Terms

Standards

Instruments

Using Inductance Measurement principle, equipped with diamond stylus, measurement radius of 10 microns, support USB and Bluetooth data transmission, with automatic shutdown function, Portable design is convenient for on-site use.

$ 770.00

Inductance Measurement principle, measuring needle radius of 5 microns Diamond Stone, measurement of Ra, Rz, Rq, Rt four paraMeters, Measurement accuracy +/- 10%, built-in lithium battery support automatic shutdown function.

$ 993.00

Adopt Diamond Stylus Inductance Sensor, Measurement accuracy within +/- 15%, with RC, PC-RC, GAUSS, D-P four filtering methods, can store 7 sets of measurement data and support RS232 communication.

$ 808.00

The central aperture of the hollow self-resetting hydraulic cylinder is 34mm, the maximum pulling force is 150kN, and the digital pressure Gauge can directly read the tensile force value. The structure is compact and the manual pump can be used as a general high voltage oil power source.

$ 640.00

High Accuracy Inductance Sensor with Diamond stylus, Measurement accuracy is not more than +/- 10%, supports RC, GAUSS and other four filtering methods, built-in lithium battery can store 7 sets of data.

$ 1092.00

Provide an additional one-year warranty period, which is applicable to Coating thickness Gauge pRoducts. It needs to be purchased simultaneously when purchasing the equipment and is not sold separately.

$ 122.00

Dedicated to Coating thickness Gauge calibrating, ensure accurate thickness measurement, suitable for F type equipment, improve Reliability.

$ 88.00

Adopt High Accuracy Inductance Sensor, measurement range Ra 0.05-10 μm, built-in lithium-ion rechargeable battery, support USB, RS-232 and Bluetooth data output mode, with automatic shutdown function.

$ 927.00

The central aperture of the hollow self-resetting hydraulic cylinder is 18mm, the maximum pulling force is 10kN, and it is equipped with a digital pressure Gauge to read the tensile force value directly. The structure is compact and easy to carry. The manual pump can be used as a general high voltage oil source.

$ 562.00

Simultaneous measurement of four asperity paraMeters, Measurement range Ra 0.05-10 μm, equipped with diamond stylus and Inductance Sensor, supports multi-standard evaluation and Data storage output.

$ 770.00

Measurement range 0~ 1250μm, suitable for LEEB220 and LEEB222 Coating thickness Gauge, Abrasion Resistance is good, suitable for a variety of nonmagnetic Coating thickness detection.

$ 157.00

Maximum pulling force 30kN, hollow self-reset structure, digital pressure Gauge with automatic calculation and peak holding function, manual pump maximum Operating Pressure 63MPa, compact and portable structure.

$ 467.00

Maximum pulling force 50kN, hollow self-reset structure, digital pressure Gauge with automatic calculation, backlight, peak holding function, manual pump maximum Operating Pressure 63MPa, compact and portable structure.

$ 475.00

Measurement range up to 1000KN, hollow self-reset design, cylinder Travel 150mm, digital pressure Gauge can directly read the force value, with peak holding, storage, clearing, query and automatic shutdown functions.

$ 1377.00

Measurement accuracy with professional calibrating services for quality control and equipment maintenance, purchased with Coating thickness Gauge.

$ 154.00

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.