Paper thickness measurement

Paper thickness measurement is performed using contact or non-contact sensors to gauge the thickness of paper samples. The principle involves applying a fixed pressure to the paper surface with a probe and recording the displacement to calculate the thickness value. This process serves to control the uniformity of paper and is applied in paper production, printability testing, and packaging material inspection.
Selection
When selecting a paper thickness gauge, it is essential to consider whether the measurement range covers the sample thickness and whether the accuracy meets the process requirements. Contact-type gauges are suitable for most papers, while non-contact types are used for sensitive materials. Ensure that the pressure complies with national standards and that the calibration cycle aligns with the frequency of use. The instrument should have a sturdy structure and a clear operating interface.

Terms

Standards

Instruments

Measurement range 0-18mm, contact pressure 100kPa, contact area 200mm ², Indication Error 2.5μm, suitable for accurate measurement of paper and Cardboard thickness.

$ 517.00

Measurement range 0-20mm, accuracy 0.001mm, contact pressure 20 +/- 5kPa, suitable for paper, Cardboard and sheet material Film thickness detection, in line with a number of international standards.

$ 401.00

Measurement range 0-4mm, resolution up to 0.001mm, contact pressure 100 +/- 10kPa, measurement surface parallelism ≤ 0.002mm, to ensure accurate and reliable thickness measurement.

$ 607.00

Measurement range 0-4mm, resolution 0.001mm, contact pressure 100 +/- 10kPa, contact area 2 +/- 0.05cm ², automatic reciprocating motion to complete thickness measurement.

$ 843.00

Using mechanical contact measurement, Measurement range 0-4mm, accuracy of 0.01/0 mm, with High Accuracy Displacement Sensor, excellent test Stability and Repeatability, suitable for a variety of material thickness detection.

$ 453.00

Measurement range 0-4mm, contact pressure 100kPa, equipped with dial indicator mechanism, can achieve accurate thickness detection, suitable for a variety of sheet materials.

$ 535.00

Measurement range 0~ 12.7mm, resolution up to 0.001mm, contact pressure 20 +/- 0.5Kpa to ensure measurement Stability, suitable for all kinds of sheet material thickness detection.

$ 543.00

Measurement range 0-4mm, contact pressure 100kPa, contact area 2cm ², equipped with digital dial Meter to achieve accurate thickness measurement.

$ 688.00

With 0.001mm High Accuracy and 1.0μm resolution, low pin pressure design and digital linear encoder, it supports multiple international standards for thickness measurement of various sheet substrates.

$ 20768.00

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

Vacuum principle measurement paper breathability performance, Measurement range 0-1000ml/min, test area of 10cm ², suitable for a variety of industrial paper mass detection.

$ 1134.00

Measurement range 0~ 20mm, accuracy of 0.001mm, contact pressure 20 +/- 5kpa, suitable for sheet material thickness detection with certain tightness.

$ 440.00

Measurement range 0-6mm, accuracy of 0.01mm, contact pressure 100 +/- 5kpa, with digital display function and stable parallelism measurement, suitable for a variety of materials Film thickness detection.

$ 382.00

Adopt mechanical contact measurement, resolution up to 0.001mm, support automatic and manual modes, automatic lifting of the measurement head to reduce human error, and configure standard measuring blocks to ensure accuracy.

$ 2913.00

Measurement range 0~ 4mm, accuracy of 0.01mm/0.001mm, 4 point positioning and vertical parallelism control to ensure measurement Stability and Repeatability.

$ 425.00

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.
Extended Application of Paper Water Absorption Tester in the Dispersibility Evaluation of Tissue Paper
This article explores how to extend the application of an instrument originally used for testing the water absorption capacity of paper to evaluate the dispersibility of tissue paper.
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.
Short Span Compression Strength (SCT) Tester for Analyzing Paper Compression Resistance
The short-span compressive strength (SCT) tester is used to measure the resistance of materials such as paper and cardboard to compression over a short distance, primarily following international standards such as ISO 9895.
IGT Printability Tester Evaluates Paper Surface Pick Resistance
This article introduces how to use the IGT printability tester to evaluate the surface pick resistance of paper. Picking refers to the phenomenon where the tack force of the ink is too high during printing, causing the surface fibers of the paper to be lifted, which affects print quality.
Internal Bond Strength Scott Tester for evaluating interlayer bonding force of paper.
This article introduces the method of evaluating the interlayer bonding strength of paper using a Scott tester. The interlayer bonding strength affects the printing and mechanical properties of paper. During testing, the instrument peels the paper vertically through an adhesive test head, records the energy required for separation, and calculates the internal bond strength.
Tensile strength testing machine measures the tensile properties of paper.
The tensile strength tester is used to determine the tensile properties of paper by simulating the stretching process to obtain key parameters such as tensile strength and elongation at break. The testing follows standards such as ISO and GB to ensure reliable results.
Paper Whiteness Tester Measures CIE Whiteness
This article explains how a paper whiteness meter measures CIE whiteness. Whiteness is a crucial optical indicator for evaluating paper quality. Traditional methods rely on subjective judgment, while modern instruments provide objective data by simulating standard lighting conditions.
Glossmeter 75-degree angle measurement for paper gloss
This article introduces the principle and method of measuring paper gloss using a 75-degree specular gloss meter. Gloss is defined as the ratio of the light reflected from the paper surface to that reflected from a standard reference plate, with the 75-degree angle commonly used for measuring medium to high gloss papers.
Sheffield Smoothness Tester for Analyzing Paper Printing Surface
This article introduces how the Sheffield smoothness tester analyzes the printing surface of paper. The instrument quantifies paper smoothness by measuring the air leakage time, with a longer time indicating a smoother surface.