Optical Thickness Meter

Optical thickness gauges utilize the principles of light interference or reflection to calculate the thickness of coatings or thin films by measuring the time difference of light reflection between the material's surface and its base layer or by observing changes in interference fringes. They are used for non-contact measurement of the thickness of materials such as coatings, inks, and plastics, ensuring uniformity during the production process.
Selection
When selecting an optical thickness gauge, consider whether the measurement range covers the material thickness, ensure the accuracy meets application requirements, account for material types such as transparent or opaque affecting the measurement method, evaluate environmental factors like vibration and light interference, and assess the ease of operation and maintenance costs of the equipment.

Terms

Standards

Instruments

Using diffuse transmission optical path design, optical density Measurement range 0.00-6 OD, light transmitance accuracy +/- 2%, can simultaneously measure light transmitance, absolute optical density, relative optical density and Dot area ratio.

$ 673.00

The three-in-one optical path design can simultaneously measure the transmittance of blue light at 430nm, purple light at 395nm and visible light, and the test aperture Φ 1mm is suitable for large thickness materials. Real-time dynamic self-Adjustment ensures accurate data.

$ 373.00

Width 2cm, optical path 10mm, dimensions 12.5 × 22.5 × 45mm, specially designed for Spectrophotometer matching Cuvette, to ensure Optical inspection detection accuracy.

$ 101.00

The width is 3cm, the optical path is 10mm, and the dimensions are 12.5 × 32.5 × 45mm. As a special accessory for Spectrophotometer, it ensures the stability of the optical path and the accuracy of measurement.

$ 106.00

The width is 5cm, the optical path is 10mm, and the dimensions are 12.5 × 52.5 × 45mm, which is suitable for the use of Spectrophotometer to ensure Optical inspection detection accuracy.

$ 114.00

Using photoelectric detection and microcomputer servo system, high Sensitivity, minimum reading +/- 0.005 °, Repeatability ≤ 0.007 °, low optical rotation samples with measurable transmittance ≥ 10%, no reading error.

$ 1098.00

Infinity Optical inspection system and Modular function design can realize polarization and dark field observation; Coarse fretting coaxial focusing system fretting grid value of 2 μ m, guide column lifting device to adapt to different Film thickness workpiece detection needs.

$ 2252.00

Optical inspection fluorescence method without reference solution, built-in temperature sensor to calibrate data in real time, dual range design covering 0~ 20mg/L and 0~ 200% Saturation, 10 Meters long cable to support deep water or remote installation, polyformaldehyde and stainless steel composite structure to enhance environmental adaptability.

$ 636.00

Measurement principle of diffuse transmission, optical density Measurement range of 6.000 OD, accuracy +/- 0.02 OD, equipped with fixed seat and bracket, support two Measurement mode, suitable for translucent material testing.

$ 743.00

Compact and easy to carry, resolution up to 0.01, Repeatability ≤ 0.02. Adopts dual light path design, supports three Standard light sources and multiple measurement calibers, and data can be stored in the cloud through the mobile phone Mini Program.

$ 719.00

Optical inspection system with infinity, 40X-1000X magnification range and N.A.1.25 Abbe condenser, support digitalization observation and a variety of auxiliary equipment expansion.

$ 2060.00

Optical inspection system and Modular design can be used to upgrade the functions of polarization and dark field observation; coarse fretting coaxial focusing system fretting grid value of 2 μ m, cylindrical roller guide drive to ensure smooth lifting, suitable for different Film thickness workpiece detection.

$ 6012.00

Infinity Optical inspection system, support a variety of Observation methods, equipped with six-hole objective lens converter and N.A.1.1 Abbe condenser, magnification 40X-1000X, easy and flexible operation.

$ 10449.00

Measurement range of +/- 89 ° optical rotation, support for optical rotation, specific rotation, concentration and sugar measurement, Precision +/- 0.01 °, Repeatability Standard Deviation 0.002 °, automatic operation is easy to integrate.

$ 3898.00

Optical inspection system with infinite distance provides clear imagery; ultra-long working distance concentrating system up to 70mm, supports high culture dish observation; compact and stable main body design, effective vibration protection.

$ 2746.00

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.
Application of Laboratory Coating Machines in the Coating of Optical-Grade PET Anti-Reflection Coatings
This article discusses the application of laboratory coating machines in the preparation of anti-reflective coatings on optical-grade PET substrates. By controlling parameters such as coating speed and gap, the coating machine enables precise adjustment of coating thickness, thereby enhancing light transmittance and reducing reflection.
Haze Transmittance Meter for Evaluating Optical Clarity of Contact Lenses
This article introduces how a haze transmittance meter is used to evaluate the optical clarity of visual correction products such as contact lenses. Haze refers to the blurriness caused by light scattering, while transmittance reflects the material's ability to transmit light. Together, these two factors determine clarity.
Transmittance Tester Measures the Clarity of Optical Films
This article introduces how to use a transmittance tester to measure the clarity of optical films. Clarity refers to the fidelity of imaging after light passes through the film. The tester is based on the principle of light transmission, calculating the clarity value using a formula by measuring the intensity of parallel transmitted light and scattered light.
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.
Comparison of Selection Parameters for Stylus and Laser Roughness Measuring Instruments
Stylus-type roughness measuring instruments perform contact scanning to measure two-dimensional profile parameters in accordance with standards such as ISO 4287, while laser-based instruments utilize non-contact optical principles and refer to ISO 25178.
The coating machine applies an anti-reflection coating on the surface of optical lenses.
A coating machine is a precision device used for depositing anti-reflection coatings on the surface of optical lenses. Based on the principle of light interference, it forms a thin film of specific thickness on the lens surface through physical or chemical methods to reduce light reflection and enhance light transmission performance.
Multilayer functional films are constructed by layer-by-layer coating using a coating machine.
This article introduces a method for preparing multilayer functional films using a coating mechanism. By sequentially coating different materials layer by layer, it enables precise control over the thickness and structure of each layer, thereby adjusting the optical, electrical, and other properties of the films.
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.
Haze meter for detecting haze and light transmittance of optical-grade resin
This article introduces the basic concepts, measurement principles, and practical applications of haze and light transmittance in optical-grade resin materials.
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.
Haze meter detects the transparent scattering characteristics of optical coatings.
This article introduces how a haze meter detects the transparency and scattering characteristics of optical coatings. Optical coatings are used in fields such as displays and packaging, where their transparency and scattered light can affect product performance.
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.