Optical DO Meter

The optical dissolved oxygen meter is based on the principle of fluorescence quenching. It measures the concentration of dissolved oxygen in water by detecting changes in fluorescence intensity resulting from the reaction between fluorescent substances in the sensor membrane and oxygen. It is used in fields such as water body monitoring, wastewater treatment, and aquaculture to reflect water quality conditions in real-time.
Selection
When selecting, consider the measurement range covering actual needs, accuracy meeting application scenarios, sensor lifespan and maintenance cycles, environmental adaptability such as pollution resistance, data output interface compatibility with existing systems, calibration convenience, and operational costs.

Terms

Standards

Instruments

Using Optical inspection Measurement principle, the range covers 0.00-20 mg/L, without frequent replacement of membrane and electrolysis solution, easy maintenance, fast Response, suitable for long-term continuous monitoring.

$ 716.00

Measurement range < 20DO, with MAX Maximum latch and automatic shutdown function, support USB and Bluetooth data output, resolution up to 0.1H, error ≤ 1H.

$ 338.00

45 °/0 ° Optical inspection geometry, the measurement results are consistent with visual inspection; 8mm measurement diaMeter, Repeatability Delta E * ab within 0.08; built-in whiteboard paraMeters do not need each calibration, dual positioning technology to improve measurement accuracy.

$ 800.00

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

Suitable for medium Hardness rubber and thermal plasticity resilience. Measurement range 0-100HDO, resolution 0.1HDO. Measurement mode of real-time, peak, timing and average. Linear dispersion analysis and storage.

$ 590.00

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

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

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

Suitable for medium Hardness rubber, thermal plasticity resilience and other materials, Measurement range 0-100HDO, Indication Error ≤ +/- 1HDO, can be hand-held or matched with fixed load test bench, flexible operation.

$ 183.00

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

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

Articles

Standard Test Method for Measuring Optical Haze of Transparent Coated Films Using a Haze Meter
This article introduces the standard method for measuring the optical haze of transparent coated films using a haze meter. First, the instrument must be calibrated according to the standard, and the sample needs to be conditioned in a constant temperature and humidity environment. The measurement involves four steps, including air zeroing, measuring total transmission and scattered light flux, and finally calculating the haze value.
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.
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.
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.
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.
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.
Laser particle size analyzer analyzes particle size distribution of paint pigments.
This article introduces the application of laser particle size analyzers in analyzing the particle size distribution of paint pigments. It mentions that the particle size distribution of pigments affects the optical properties, stability, and rheological characteristics of coatings.
Coating Distinctness of Image (DOI) Meter Evaluates Surface Imaging Clarity
The Coating Distinctness of Image (DOI) meter is an optical instrument used for quantifying the imaging clarity of coating surfaces. It analyzes the reflection of standard patterns on the coating, measuring the ratio of specular reflection to diffuse reflection to obtain an objective DOI value.
Principle and Application of Whiteness Meter in Measuring Coating Whiteness
A whiteness meter quantifies the whiteness of paint samples by simulating human perception of white, measuring the diffuse reflectance of light—particularly in the blue wavelength range—and converting it into a numerical whiteness value. It employs standardized optical configurations and mathematical models, such as the Ganz formula, to assess the brightness and chromaticity of coatings.
Three-angle gloss meter for evaluating coatings with different gloss levels
Glossiness is a key indicator for evaluating the optical properties of a surface, defined as the ratio of the reflected luminous flux to the incident luminous flux, typically expressed as a percentage or in gloss units.