Liquid Transmittance Meter

The liquid transmittance meter works by shining a light source through a sample and measuring the intensity of transmitted light with a detector, then calculating the percentage of transmittance. It is used to measure the transparency of liquids, monitor the clarity of solutions in the coatings and inks industry, and inspect impurity content in paper and plastics.
Selection
When selecting, consider matching the measurement wavelength range to the sample characteristics, ensuring the sample cell size accommodates the liquid volume, and verifying that the instrument accuracy meets industry standards. Environmental temperature stability affects readings, a simple operation interface reduces errors, and maintenance costs should align with the frequency of use.

Terms

Standards

Instruments

The three-in-one optical path measures the transmittance of three wavelengths at one time, the test aperture is 1mm to adapt to small-sized materials, and the parallel light design ensures stable measurement of thick materials, with an accuracy of +/- 2% and a resolution of 0.1%.

$ 361.00

Adopt three-in-one parallel light path design, one measurement of visible light, infrared and ultraviolet transmittance; test aperture 1.3mm, suitable for small size and thick materials; Automatic calibration and large capacity storage function.

$ 361.00

The minimum test aperture is 0.5mm, and the three Illuminants share a test hole. Three transmittance data of 550nm, 850nm and 940nm can be obtained for one hole. Real-time dynamic self-Adjustment, Test accuracy +/- 2%.

$ 538.00

It adopts parallel light path design, supports 47mm Film thickness material test, and can simultaneously measure ultraviolet 365nm, infrared 940nm and visible light transmittance. It has real-time self-calibrating function, and the operation is simple and fast to display three results.

$ 341.00

Open measurement area supports vertical measurement, thickness ≤ 145mm sample compatibility, haze Repeatability ≤ 0.05%, providing transmittance compensation measurement and rich fixtures to adapt to different forms of samples.

$ 6496.00

Utilizing a 360-780nm composite full-spectrum LED light source, equipped with a 256-pixel CMOS detector and a concave grating, it achieves spectral acquisition at 10nm intervals, supporting micro-transmittance measurements and a variety of optical index tests.

$ 6851.00

Using 3-in-1 optical path design, one hole can simultaneously measure three wavelengths transmittance. Equipped with 1mm test aperture and Automatic calibration function, support 850nm/940nm infrared and 550nm visible light measurement, accuracy of +/- 2%.

$ 373.00

The three Illuminants share a test hole, and the 380nm-760nm visible light, 940nm infrared and 365nm ultraviolet transmittance can be obtained in one measurement. The parallel light design can test large thickness materials, and the 1mm test aperture is suitable for small size samples.

$ 373.00

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

It can simultaneously test infrared, ultraviolet and visible light transmittance, and support the evaluation of total solar energy barrier rate. Using point array color screen visual display, the fuselage is lightweight and portable, with real-time dynamic Adjustment, Measurement accuracy is better than +/- 2%.

$ 170.00

Using 360~ 780nm composite full Light spectrum LED Illuminant, equipped with 256 pixel CMOS Detector, measurement wavelength range of 360~ 780nm, interval of 10nm, to achieve haze, transmittance, chroma and other Optical inspection indicators of accurate testing.

$ 6980.00

Repeatability and accuracy are ensured with dual optical path sensing arrays and UV reinforced silicon photodiodes with 0.0001 resolution, 0-200% Transmittance Measurement range and support for APHA/PtCo, Gardner and Saybolt chroma scales.

$ 1687.00

Adopt LED Illuminant to achieve 0~ 100% measurement range, resolution up to 0.1, support single continuous measurement mode, lightweight structure only 100g, can be through USB/RS-232/Bluetooth multi-mode data transmission.

$ 380.00

Optical inspection components imported, measurement range 0.0-99%, accuracy ≤ 2%, with single and continuous two measurement modes, support MAX Maximum, MIN Minimum, average statistics, can store 800 sets of data and connect to computer communication.

$ 344.00

Support haze and transmittance measurement, haze resolution of 0.01 units, Repeatability ≤ 0.1 units, open measurement area can be vertically operated, equipped with a variety of fixtures to adapt to different sample forms.

$ 11337.00

Articles

Lab Mixer Selection - Viscosity Determines Torque
This article mainly discusses how to select a laboratory mixer based on the viscosity of the material. The higher the viscosity, the greater the torque required. Low-viscosity liquids are suitable for high speed and low torque, while high-viscosity materials require low speed and high torque.
Application of Transparent Constant Temperature Water Bath in Visualization of Material Thermal Deformation
The constant temperature water bath provides a stable environment for observing the deformation of materials after heating by maintaining a constant and uniform temperature of the liquid medium.
Improving Efficiency with Vortex Mixers in Biological Sample Pre-treatment
This article primarily discusses how vortex mixers enhance the efficiency of biological sample pretreatment. By generating a vortex motion through an electric motor, they enable rapid and uniform mixing of liquids, saving time and delivering better results compared to traditional manual methods.
Abbe refractometer measures the relationship between refractive index and concentration of liquid coating resins.
This article introduces the method of measuring the refractive index of liquid coating resins using an Abbe refractometer and calculating the concentration based on the relationship between refractive index and concentration.
Negative pressure method leak detector for testing vacuum packaging seal integrity
The negative pressure leak detector evaluates the seal integrity of vacuum packaging by simulating a pressure differential environment. The instrument places the sample in a testing chamber and creates a vacuum to form negative pressure. If there is a leak, air or liquid will seep into the packaging, and the result is determined by observing pressure changes or the presence of bubbles.
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 Meter Selection Guide: Principles for Matching Light Sources and Samples
This article introduces how to select the light source for a transmittance meter based on sample characteristics. The types of light sources include halogen tungsten lamps, LEDs, and lasers, which are suitable for wide-band, monochromatic, or high-precision measurements, respectively.
The oral dissolving film is uniformly coated by a film applicator and then dried and formed.
Oral dissolving films are prepared by a coating mechanism, where a liquid containing film-forming materials is uniformly applied onto a substrate, followed by drying to remove the solvent and form a solid film.
Abbe refractometer measures the refractive index and concentration of resin liquids.
The Abbe refractometer measures the refractive index of resin liquids using the principle of the critical angle of light, and there is a corresponding relationship between the refractive index and concentration within a certain range.
Surface Tensiometer Evaluates the Wetting and Spreading Properties of Resin Liquids
This article introduces how to use a surface tensiometer to evaluate the wetting and spreading performance of resin liquids. Wetting and spreading affect the adhesion and appearance of products such as coatings and adhesives, and the process can be described by Young's equation and the spreading coefficient.
Key steps for measuring the efflux time of varnish using a viscosity cup method
This article introduces the method for measuring the outflow time of varnish using a viscosity cup. The principle is based on Poiseuille's law, where viscosity is estimated by recording the time it takes for the liquid to completely flow out from the small hole at the bottom of the cup—longer times typically indicate higher viscosity.
Cobb Absorbency Tester Evaluates Paper Water Absorption Capacity
The Cobb water absorption tester is used to measure the water absorption capacity of paper or cardboard by simulating the liquid contact process and calculating the mass of water absorbed per unit area to determine the Cobb value.
Application of Paper Absorbency Tester in Sizing Process
The paper absorbency tester evaluates the absorption performance of paper by measuring the penetration of liquid on the paper. In the sizing process, sizing agents alter the hydrophilicity of the paper fiber surface, thereby affecting the paper's resistance to liquids.
Water Absorption Tester in the Detection of Tissue Paper and Paperboard
This article introduces the application of water absorption testers in the testing of tissue paper and paperboard. The instrument evaluates the water absorption performance of materials by measuring the mass or height of liquid absorbed by the sample, with common methods including the Klemn method and the capillary rise height method.
The flash point tester measures the safety baseline value of the solvent.
The flash point refers to the minimum temperature at which the vapor of a flammable liquid can be ignited. It is not a fixed value but depends on the testing method and instrument. Data measured by flash point testers serve as a critical basis for evaluating the fire risk of solvents and establishing standards for safe storage and operation.