Showing results: 46 - 53 of 53 items found.
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ViscoStar III -
Wyatt Technology
A highly sensitive, on-line differential viscometer used in conjunction with SEC-MALS to determine the size and conformation of all types of biopolymers, synthetic polymers and even proteins and peptides. The ViscoStar III incorporates multiple novel technologies to provide the highest sensitivity, stability and solvent compatibility of any available viscometer for GPC. Its ease-of-use and serviceability make it the perfect companion for Wyatt's DAWN HELEOS II light scattering and Optilab T-rEX refractive index detectors.
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AF-uOR-102 -
Advanced Fiber Solutions
Optical Fiber Type MultimodeWavelength, nm 850nm / 1300nm +/- 20nmDynamic range 20 / 19 dBAttenuation Dead Zone 6 MetersEvent Dead Zone 1 MeterPulse Width 10...1000 nSLoss Resolution 0.001 dBDistance Range 2.5, 5, 10, 20, 40, 80, 120, 160, 240 kmDistance accuracy ±(0.5 + 5´ 10 - 5´ L + (dn/n)´ L)Refractive Index Range Setting 1.0000...2.0000Optical Connector Type SC, ST, FC (other connectors available if requested)Supply Current From USB Port < 200mASize 6.25 Inches x 3 Inches x 1.25 InchesWeight 1.5 lbsLanguage English and Spanish
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AF-uOR-100A -
Advanced Fiber Solutions
Optical Fiber Type MultimodeWavelength, nm 850nm +/- 20nmDynamic range 22 dBAttenuation Dead Zone 6 MetersEvent Dead Zone 1 MeterPulse Width 10...1000 nSLoss Resolution 0.001 dBDistance Range 2.5, 5, 10, 20, 40, 80, 120, 160, 240 kmDistance accuracy ±(0.5 + 5´ 10 - 5´ L + (dn/n)´ L)Refractive Index Range Setting 1.0000...2.0000Optical Connector Type SC, ST, FC (other connectors available if requested)Supply Current From USB Port < 200mASize 6.25 Inches x 3 Inches x 1.25 InchesWeight 1.5 lbsLanguage English and Spanish
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Anton Paar GmbH
Particle systems can be complex, but measuring them doesn’t have to be! Anton Paar offers two different technologies to characterize particles from the nanometer to the millimeter range. The Litesizer series employs light-scattering technology to determine not only particle size, but also zeta potential, transmittance, molecular mass, and the refractive index of nano- and microparticles in liquid dispersions. The PSA series uses laser diffraction technology to measure the size of particles in both liquid dispersions and dry powders in the micro and millimeter range. Side by side they open up a wide range of possibilities for comprehensive particle characterization.
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Extech RF153 -
Extech Instruments Corporation
Take quick and accurate % Brix or Refractive Index (RI) measurements of dissolved sucrose level in liquids for beverage and food production, determine maturity of fruits and plants, or control the concentration of industrial fluids (such as cutting coolants, hydraulic fluids, and antifreeze) to extend equipment life and prevent corrosion. Fast three second response time, the LCD displays %Brix or RI and Temperature. The RF153 fits in the palm of your hand and it features built-in ATC, single Zero calibration, prism cover, and auto memory storing 10 readings. Rugged low maintenance water resistant (IP65) housing with convenient side spouts for easy drainage.
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DRK6618 -
Shandong Drick Instruments Co., Ltd.
DRK6618 digital V prism refractometer is a high precision multi domestic first growth range digital refractometer, to refractive index of transparent or translucent solid or liquid material ratio, average dispersion, dispersion (i.e.can refraction determination of 706.5nm, 656.3nm, 589.3 nm, 546.1 nm, 486.1 nm, 435.8 nm, 434.1 nm, and 404.7 nm of eight commonly used wavelengths rate) and the mass fraction of sugar solution (Brix) instrument forfast and accurate determination of. A friendly operation interface, high testing speed, good repeatability, temperature correction, data storage, U disk storage, and USB communication interface function. Because the index of refraction is one of the most important optical constants of material, can in order to understand the optical properties of the material, such as purity, so it is one of the scientific research units, universities and the optical glass industry the necessary equipment, but also widely used in petroleum, chemical, pharmaceutical, sugar, food industry, and other industries.
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3938 -
TSI Inc.
TSI''s newest Scanning Mobility Particle Sizer SMPS™ spectrometer is widely used as the standard for measuring airborne particle size distributions. This system is also routinely used to make accurate nanoparticle size measurements of particles suspended in liquids. The National Institute of Standards and Technology (NIST) uses a TSI DMA to size 60 nm and 100 nm standard size reference materials. SMPS spectrometer sizing is a discreet technique in which number concentrations are measured directly without assuming the shape of the particle size distribution. The method is independent of the refractive index of the particle or fluid, and has a high degree of absolute sizing accuracy and measurement repeatability. TSI''s Model 3938 is the 3rd generation of SMP, trusted by researchers for over 30 years.
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Torontech Group
Optical fiber consists of a core and a cladding layer, selected for total internal reflection due to the difference in the refractive index between the two. In practical fibers, the cladding is usually coated with a layer of acrylate polymer or polyimide. This coating protects the fiber from damage but does not contribute to its optical waveguide properties. Individual coated fibers then have a tough resin buffer layer and/or core tube(s) extruded around them to form the cable core. Several layers of protective sheathing, depending on the application, are added to form the cable. Rigid fiber assemblies sometimes put light-absorbing ("dark") glass between the fibers, to prevent light that leaks out of one fiber from entering another. This reduces cross-talk between the fibers, or reduces flare in fiber bundle imaging applications Optical fibers are very strong, but the strength is drastically reduced by unavoidable microscopic surface flaws inherent in the manufacturing process. The initial fiber strength, as well as its change with time, must be considered relative to the stress imposed on the fiber during handling, cabling, and installation for a given set of environmental conditions. There are three basic scenarios that can lead to strength degradation and failure by inducing flaw growth: dynamic fatigue, static fatigues, and zero-stress aging.
