Electromagnetic Thickness Meter

The electromagnetic thickness gauge utilizes the principle of electromagnetic induction, where the probe generates an alternating magnetic field. When it approaches conductive materials, eddy currents are induced, and the material thickness is calculated based on the impedance changes caused by these eddy currents. It is used to measure the thickness of coatings or substrates of non-magnetic materials such as metals and plastics, monitoring the thickness of platings and paint films in production lines and laboratories.
Selection
When selecting an electromagnetic thickness gauge, consider the material's conductivity, as it is suitable for non-magnetic materials. Match the probe frequency to the measurement range, using high frequency for thin coatings. Pay attention to accuracy and temperature drift indicators. Handheld models are suitable for on-site use, while benchtop models are ideal for laboratories. Check the calibration certificate and the wear resistance of the probe.

Terms

Standards

Instruments

Using electromagnetic induction principle to achieve 0-5000μm measurement range, equipped with alloy integration Probe and temperature compensation technology, support continuous single two measurement mode, can store 2000 sets of data and have automatic substrate identification function.

$ 267.00

Using electromagnetic induction principle to achieve nondestructive detection, measurement range of 0-9500μm, accuracy +/- 3%. With continuous single double measurement mode, automatic identification of substrate material, support 2000 sets of data storage and four statistical functions.

$ 344.00

The principle of electromagnetic induction is used for measurement of nonmagnetic coatings, with a maximum thickness of 6000 μm and a resolution of 0.1 μm. It has IP65 Protection Rating and fast measurement capability of more than 180 readings per minute.

$ 1542.00

Using electromagnetic force equilibrating Sensor, accuracy of 1mg, Stabilization time ≤ 6s, with RS232 Communication interface, counting function and density measurement and other practical functions.

$ 412.00

Measurement range 0-2000μm, error +/- 3%, with continuous and single test mode, can store 2000 sets of data and support computer connection communication.

$ 235.00

Measurement range 0-1500μm, error +/- (3% + 1.5μm), continuous and single Measurement mode, can store 2000 sets of data and support computer communication.

$ 173.00

High Accuracy Electromagnetic Force Sensor, dynamic temperature compensation technology to ensure accuracy, repeatability error +/- 2mg, standard RS232 interface can transfer data directly to Excel.

$ 456.00

High Accuracy Electromagnetic Force Sensor, Capacity 520g, readability accuracy 0.1mg, OLED display and Draft Shield static elimination design, support external calibrating and multiple unit switching.

$ 2765.00

High Accuracy Electromagnetic Force Sensor, repeatability error +/- 1mg, Draft Shield static elimination design, support for external calibrating and multiple weighing units for special application needs.

$ 1816.00

High Accuracy Electromagnetic Force Sensor, Capacity 320g, readability 0.1mg, support automatic internal calibrating and multiple weighing units, equipped with transportation protection devices.

$ 1230.00

High Accuracy Electromagnetic Force Sensor, repeatability error +/- 0.2mg, dynamic temperature compensation technology to ensure weighing accuracy, reaction time is less than 3 seconds, support a variety of unit weighing.

$ 498.00

High Accuracy Electromagnetic Force Sensor, Capacity 320g, readability 1mg, support for external calibrating and multiple weighing units, equipped with transportation protection devices to ensure safety.

$ 708.00

Electromagnetic Force Sensor, repeatability error +/- 3mg, linear error +/- 3mg, with dynamic temperature compensation and external calibrating function, reaction time is less than 3 seconds, support a variety of weighing units.

$ 1037.00

Using a new generation of Electromagnetic Sensor, high measurement accuracy, Response speed. Measurement speed and Sensitivity adjustable, unit conversion and fault detection functions.

$ 323.00

Adopting a stepper motor automatic positioning and electromagnetic release system, the swing period is 1.4 seconds, and the steel ball diaMeter is 5 mm, providing visual and acoustic test end signals.

$ 1058.00

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.
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.
Laboratory Application Scenarios of Milligram Precision Balances
The milligram precision balance can accurately weigh up to 0.001 grams, primarily utilizing electromagnetic force compensation technology, and its performance is related to parameters such as repeatability and linearity error.
Paper Thickness Gauge for Determining Paper Thickness and Apparent Density
This article explains how to measure paper thickness and apparent density using a paper thickness gauge. Thickness refers to the vertical distance between the two sides of paper under standard pressure, while apparent density is calculated by dividing the basis weight by the thickness, reflecting the compactness of the paper.
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.
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.
For electromagnetic vibration tables, whether to choose sweep frequency or fixed frequency testing standards for simulating transportation is crucial; do not make a random selection if you are unsure.
The electromagnetic vibration table is used to simulate transportation vibrations and test the durability of products and packaging. There are two types of tests: fixed-frequency and sweep-frequency. The selection should be based on the test objectives and relevant standards to avoid arbitrary choices. For new products, it is recommended to first conduct a sweep-frequency test to identify resonance points, followed by fixed-frequency tests as needed.