In-line Thickness Meter

Online thickness gauges measure thickness by emitting energy waves through sensors that penetrate the material and receive reflected signals, calculating the time difference or intensity changes. They are used for real-time monitoring of thickness uniformity in the production of films, coatings, plates, etc., and enable thickness control in coil production and coating processes.
Selection
When selecting an online thickness gauge, consider material characteristics such as transparency and surface condition, matching measurement principles like radiation, ultrasonic, or laser. Determine the response frequency and error range based on production line speed and accuracy requirements. Evaluate installation space and environmental conditions to ensure the probe is compatible with the production line structure and includes temperature compensation functionality.

Terms

Standards

Instruments

Using 100LPI line number and quadrilateral pyramid hole structure, the transfer uniformity of inks is precisely regulated through hole shape and line number, which affects the wet film thickness and ensures the stability of ink supply.

$ 167.00

Using magnetic Induction and eddy Current dual principle, Measurement range 0~ 1250μm, Probe with line can measure grooves and complex positions, automatically identify iron and non-iron substrates, with single point and two point Adjustment.

$ 196.00

Adopt magnetic Induction principle to measure 0-1250μm thickness, equipped with line Probe measurement groove and narrow area, support single point and two point calibrating, with automatic matrix recognition and undervoltage prompt function.

$ 186.00

Measurement range 0~ 12mm, accuracy of 0.01mm, using digital High Accuracy hundred (thousand) sub-Meter head, easy to operate and safe and reliable measurement, in line with GB/T 16311-2009 standard requirements.

$ 779.00

In line with ISO2808 standard, the range is 0~ 500μm, the accuracy is not more than 5μm, can measure the wet film thickness and estimate dry-film thickness, suitable for laboratory and pRoduction site.

$ 127.00

Using digital High Accuracy dial head, Measurement range 0~ 12mm, Graduation up to 0.01/0 mm, with measurement safety locking mechanism and holding function, easy and reliable operation.

$ 286.00

Measurement range 0-4mm, resolution 0.001mm, contact pressure 100 +/- 10kPa, measurement plane parallelism ≤ 0.0005mm, in line with a number of international standards, suitable for a variety of sheet material thickness accurate determination.

$ 451.00

Measurement range 0-20mm, resolution 0.01mm, contact pressure 20 +/- 0.5kpa to ensure Measurement accuracy, in line with a number of international standards, suitable for all kinds of sheet material thickness detection.

$ 451.00

Made of precision stainless steel, durable and repeatability; range 250-700 μm, Division 50 μm; in line with international measurement standards to ensure accurate painting thickness control.

$ 109.00

Measurement range 0-20mm, resolution 0.001mm, contact pressure 20 +/- 0.5kpa, measurement plane parallelism ≤ 0.035mm, in line with a number of international standards, suitable for a variety of sheet material thickness accurate determination.

$ 499.00

Non-contact measurement distance 7.5mm +/- 3mm fluctuation is still accurate, the measurement time is only 20ms, built-in auto calibration and Gloss compensation technology to ensure accurate and reliable Color data.

$ 12068.00

Measurement accuracy of 0.007mm, Graduation of 0.001mm, probe diaMeter of Φ 5mm plane, maximum measurement depth of 80mm, in line with national standards.

$ 267.00

Polygonal structure design, range 25~ 2032µm, in line with GB/T1764-79, GB/T134522-92, ISO 2808-74 standards, suitable for Paints, varnish and other Coating wet film thickness measurement.

$ 106.00

Using 220LPI line number stainless steel anilox roller, printing surface width 70mm, mesh shape is quadrilateral pyramid, wet film thickness is inversely proportional to the number of lines, suitable for proofing of different inks.

$ 267.00

In line with ISO2808-1974 standard, the range is 0~ 150μm, the accuracy is not more than 5μm, can measure the wet film thickness and estimate dry-film thickness, suitable for laboratory and pRoduction control.

$ 127.00

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.