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Micromeritics’ low cost Gemini VII 2390 Series surface area analyzers utilize a patented twin-tube design to produce fast, accurate, and repeatable surface area and porosity results. An ideal tool for teaching, research, and quality control environments, the Gemini VII permits low to high surface area measurements without requiring exotic gases such as argon or krypton.
Three model options are available. The Gemini VII 2390a provides standard methods for: single-point and multipoint BET and Langmuir surface areas, total pore volume, micropore analysis by the t-method, and much more. The Gemini VII 2390p provides additional precision with the addition of a saturation pressure tube and is designed to provide a rapid measurement of the adsorption isotherm. The Gemini VII 2390t has all the capability of the 2390p with the additional ability to perform a BJH or Dollimore-Heal pore size distribution using both adsorption and desorption isotherms of up to 1000 points.
All models can be operated stand alone or connected to a computer running Micromeritics’ Gemini VII Windows® software. The Windows version includes easy-to-follow installation videos and system verification tests to ensure optimum performance and reliability. How-to videos provide on-screen instruction on instrument operation.
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Micromeritics introduces the TriStar II 3020, a fully automated, three-station surface area and porosity analyzer capable of increasing the speed and efficiency of quality control analyses, with the accuracy, resolution, and data reduction to meet most research requirements. The three analysis ports operate simultaneously and independently of one another. For additional throughput, four TriStars can be operated with one computer. The speed and accuracy of the Tristar II make it an ideal instrument for a wide variety of applications that include pharmaceuticals, catalysts, carbon, cosmetics, paints, pigments, geoscience, fuel cells, high-tech ceramics, and much more.
The new TriStar II features a dedicated Po port, allowing the measurement of saturation pressure on a continuous basis. A 2.75-liter Dewar and extended length sample tubes allow complete adsorption and desorption isotherms to be collected without operator intervention. The TriStar II can collect up to 1000 data points. Fine details of the isotherm can be observed and recorded providing high resolution and revealing pore structure details. The instrument also features a krypton option, allowing precise measurements in the very low surface area range.
The TriStar II also combines versatility in analysis methods, data reduction, and reporting to allow the user to optimize analyses to specific applications. Reports include adsorption and desorption isotherms, BET surface area, mesopore pore size and area distributions, Statistical Process Control (SPC), new isotherm and thickness models, isosteric heat of adsorption, and integrated DFT models.
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Universal mechanical tension meters for versatile applications in textile, fibre and wire industry.
- The analog display shows changing and fluctuating tensions fast and enables an optimal process adjustment
- The built-in material thickness compensator compensates different material diameters for a particular range
- Filament guide and roller shifting mechanism ensure easy acquisition of the running material
- Hand-held unit with built-in mounting holes permit fixed installation for continuous tension measurement
- Special finger support located on the rear side reduces the effort to move the outer roller assembly
- Custom-built configurations and special calibration are available
- Everything in operator’s view:
· the guide rollers
· the measured material
· the readings
- Ball-bearing mounted, V-grooved guide rollers
- Each instrument is individually calibrated for highest accuracy 41 mm Ø scale
- Tension meter with rugged aluminium housing
- Certificate of Compliance with the order 2.1 according EN 10204 is included
- Optionally available: Inspection Certificate 3.1 according EN 10204 with calibration report
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Electronic tension meter for applications in textile and wire industry.
Special convenient for users aquiring additional process data to save them for example for a QM-system ISO9000ff
Model DTMX offers additional features to model DTMB:
- data memory
- statistical analysis
- interface for data printer and PC connection
Applications in textile industry: e. g. 50 up to max. 50000 tex
Applications in wire industry: e. g. 0.08 up to 2.2 Ø mm copper wire
9 Tension ranges from 0.1 - 200 cN to 5 - 50 daN
- Microprocessor controlled tension meter for highest accuracy
- Measuring principle: double beam in bending with strain gauge
- Selectable update rates (0.5, 1, 2, or 4 seconds) to provide steady readings
when tensions fluctuate (electronic damping)
- Measuring frequency: 62 measurements/second
- Built-in mounting holes permit fixed installation for online use
- The display shows averaged values calculated during the
update interval t1 e. g. every second 1 x
- Saving MIN, MAX and PEAK values during a user-selected period. These values can be recalled at the display.
- Zero adjustment feature permits use of the tension meter in various measuring positions, maintaining highest accuracy
- Calibration to customer supplied material is available (up to two different material calibrations)
- Tension meter with built-in material thickness compensator improves accuracy for changing diameters (from tension range - 500 cN)
- Hand-held unit with built-in mounting holes permit fixed installation for online use
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In some critical bolting applications, factors such as friction or bolt/joint geometry are such that the measurement of applied torque alone will not provide the degree of accuracy necessary to control the preload within the required limits. Likewise, many critical applications also demand that bolt preload be monitored over the service life of the fastener as part of a predictive or preventative maintenance program. In these applications, ultrasonic measurement of fastener elongation and/or load has frequently proven to be the most accurate, reliable and cost effective solution.
Ultrasonic measurement of bolt preload is made possible by introducing a sonic pulse at one end of the fastener and accurately measuring the time of flight (TOF) required for the echo to return from the opposite end; using material constants, the USM-II converts this TOF into an "ultrasonic length" of the fastener, providing a baseline from which future measurements will be made. When the fastener is tightened, the TOF increases and the USM-II will again utilize material constants to eliminate the effects of stress and temperature variations on sound velocity, providing an accurate elongation or load measurement.
The USM-II uses state of the art hardware and software to achieve these measurements with maximum automation, and minimizes the need for operator interpretation. Offering digital recordation and transmission of data, as well as calibrated analog signal output the USM-II provides a complete system for measurement, recordation, and control of fastener tension in the most demanding applications.
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This high-resolution SWAXS system was particularly designed for real-time, simultaneous small- and wide-angle measurements on powders, liquid crystals and polymeric nanomaterials.
The System3 Small- and Wide-Angle X-Ray Scattering (SWAXS) Camera basically has the same specifications as the SAXS-system. However, it is equipped with an additional wide-angle x-ray (WAXS) detector covering an angular WAXS range from 18° to 26° (other ranges on request).
During simultaneous SAXS/WAXS measurement, the data acquisition of both, SAXS and WAXS detectors, is electronically multiplexed with an adjustable ratio.
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Other material characterization instruments
