Ultrasonic Paper Thickness Gauge

The ultrasonic paper thickness gauge emits high-frequency sound waves towards the paper through a probe, receives the reflected echoes, calculates the time difference of sound wave penetration, and determines the thickness value based on the relationship between sound speed and thickness. It is used for online or offline measurement of the thickness of various types of paper and cardboard, controlling paper uniformity in paper production and quality inspection processes.
Selection
When selecting, consider that the measurement range should cover the thickness of the paper to be tested, the accuracy should meet the process requirements, and the probe size should be compatible with the shape of the object being measured. Pay attention to the matching between the sensor frequency and the material's acoustic attenuation. The equipment should have a temperature compensation function. Prioritize models that support automatic calibration and come with data output interfaces.

Terms

Standards

Instruments

Using the principle of ultrasonic thickness measurement, Display resolution up to 0.01mm, with Probe zero point Adjustment, support Data storage and backlight display, can be used in dark environment.

$ 248.00

Measurement principle using ultrasonic, Measurement range 50~ 3800μm, accuracy +/- (2μm + 3%), suitable for concrete and fiberglass substrate Coating thickness detection.

$ 2939.00

Measurement principle using ultrasonic, Measurement range 13~ 1000μm, accuracy +/- (2μm + 3%), suitable for wood, plastic and other substrates polymer Coating thickness detection.

$ 2652.00

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

$ 517.00

Using ultrasonic technology implementation nondestructive measurement, Measurement range 13~ 1000μm, accuracy +/- 3%, support multi-coating system analysis, with weatherproof protection and a variety of data transmission methods.

$ 2855.00

Measurement range 1~ 200mm, resolution 0.01mm, using ultrasonic technology to accurately measure material thickness, adapt to different Frequency Probe, can measure serious corrosion surface and paint surface.

$ 396.00

Using ultrasonic measurement technology, Measurement range 0.75~ 300mm, error +/- (1% H + 0.1) mm, support single point and scan mode, with Automatic calibration and sound speed reverse measurement function, suitable for harsh environment.

$ 315.00

Using dual crystal probe and ultrasonic pulse reflection technology, Measurement range 0.8-350 mm, the highest accuracy +/- 0.05mm, suitable for a variety of engineering materials, easy to operate.

$ 180.00

Measurement principle using ultrasonic pulses, accuracy of +/- (1% H + 0.1) mm, Measurement range 0.75-350 mm, with automatic zero point calibrate, two point calibrate and 200 data storage functions, support a variety of materials Speed of sound settings.

$ 251.00

Using ultrasonic measurement technology, Measurement range 0.75-350 mm, resolution up to 0.001mm, with anti-measurement sound speed function, can store 2000 sets of data, support a variety of probes to adapt to different working conditions.

$ 506.00

Measurement range 1.2~ 225mm, support Speed of sound measurement and 12 data storage functions, with upper and lower limit alarm settings and coupling status prompts, suitable for a variety of material thickness detection.

$ 223.00

Using non-penetrating ultrasonic technology, Measurement range 0.8~ 300mm, accuracy of 0.01mm, support four Measuring methods and 5000 data storage, with Automatic calibration and high-speed measurement function.

$ 1093.00

With emission-echo and echo-echo two thickness measurement modes, Measurement range 0.65~ 600mm, Probe type can be automatically identified and zero point calibrated, support anti-measurement Speed of sound function to improve accuracy.

$ 667.00

Measurement of thick soft coatings such as polyurea and asphalt, thickness range 50 to 7600 μm, storage of 100,000 readings, ASTM D6132 compliant, non-destructive ultrasonic technology, durable and easy to operate.

$ 3987.00

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.