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Permeability
influence of material on magnetic flux, gases or liquids as they pass through.
See Also: Magnetic Permeability, Soil
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Gravimetric Permeability Measurement System
Our Gravimetric permeability measurement system is designed to meet this need and is designed around a high quality solid acrylic water bath which reduces critical thermal losses.
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Film Permeability Tester
Film Permeability Tester is designed to test the permeability of a wide range of packaging materials such as plastic film, composite film, aluminum foil, thin sheets, rubber, porcelain, medical patch, etc.
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Water Vapor Permeability Tester
WPT-304
WPT-304 Water Vapor Permeability Tester is manufactured based on the gravimetric method and is applicable to test the water vapor transmission rate of plastic films, composite films, sheets, and other materials used in packaging, medical and constructive industry.
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Potential Transformer Test Set
Supreme Instrument Laboratories
The two voltage vectors, one from Standard Potential Transformer and the other from the Potential Transformer under test energies the high permeability magnetic core and then associated windings try to annual the residual magnetism which occurs due to error. The differential vectors will be proportional to phase error and ratio error magnitudes.
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Water Vapor Permeability Tester
QT-WVP
Qualitest Water Vapor Permeability Tester QT-WVP series is used to test the water vapor transmission rate (WVTR) of packaging materials.
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S-Parameter Measurement System
DPS08
KEYCOM provides S-parameter method measurement systems in two modes, the reflection mode and the transmission mode, to address the individual purposes. Both modes measure the complex permittivity (εr) and complex permeability (μr) at the same time, and the proper usage is as follows.
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Split Core Current Transformers
LZCK-55
Beijing GFUVE Electronics Co.,Ltd.
Outdoor waterproof current transformers are applicable for AC power system 35kV and measurement of current of power supply equipment below 10KV also can be used for microcomputer protection. This type of current transformer employs imported silicon steel which with high permeability as magnetic material, has the characteristics of Small magnetic circuit loss and can be split, its semicircular core and secondary windings employ high quality epoxy resin vacuum, casting in plastic-case(ABS or PC) which is flame retardance anti-moisture, stable performance, no maintenance.
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Permeability Cells
Flexible Wall Permeameter
The Permeability Cells - Flexible Wall Permeameter for Soil Samples performs permeability tests on normal and contaminated soil samples. The permeability cells are available either in brass for normal use or in stainless steel for contaminated materials. Top caps and pedestals are available for normal or contaminated materials.
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Concrete Water Impermeability Tester
The concrete water impermeability testing system is designed with many different standards in mind including DIN 1048, ISO/DIS 7031, EN-12390-8 & UNI 9533. This impressive piece of machinery comes in different models with either 3 or 6 measuring points and with or without quantitative measurement of water permeability. The supporting structure is very stable and is at a convenient height to allow the easy access. The pans are made out of stainless steel, the specimens are easy to insert due to the clamping device.
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Drying Time & Permeability
When developing a coating process, it is important to know the exact time it takes for the coating to dry or cure. For multicoat paint systems, having knowledge of the drying time enables the operator to know when any subsequent layers can be applied. There are many stages involved in the coating drying time. Once a coating has been applied, it levels off under gravity, and, as the coating begins to cure, a thin dry film appears on the surface. The coating then continues to dry until, finally, it is totally cured.
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Permeability Meters
Mk VI
Our broad range of permeability measurements instruments are at the cutting edge of technology and give precise, reliable, easy and fast result. The instruments can be configured for almost any gas or gasses, including water vapour, hydrocarbons, O2, CO2, N2, H2 and He.
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Magnetic Field And Permeability Measurement
MAGNETOMAT 1.790
Foerster Instruments, Incorporated
The MAGNETOMAT 1.790 is a measuring system for the precision detection of magnetic flux density and relative permeability. The MAGNETOMAT software is used for displaying the measured values and saving and exporting data. The wide range of probes facilitates optimal adjustment to the conditions of the application, such as the measurement of relative permeability within the scope of the quality control of stainless steel and low-permeable (non-magnetic) alloys. Further applications include the long-term monitoring of the magnetic environment, e.g. prior to installing magnetically sensitive devices, and the localization of ferrite enclosures in stainless steel and NE materials. Changes in material (sulfidation, degradation of lamination, structural changes) can also be proven thanks to permeability comparative measurements.
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Medical Masks Differential Pressure Tester
Sataton Instruments Technology CO., Ltd
Medical face mask differential pressure tester also called mask breathility tester is to determine the breathability of medical face mask materials. The tester can measure the differential pressure (Delta P) required to draw air through a measured surface area at a constant air flow rate is used to measure the air exchange pressure of the medical face mask materials. By providing the suction air through the holding sample, the tester can measure the Delta P by differential pressure transducer. It is to determine the air permeability and using comfort of the materials for medical mask.
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Oxygen Permeability Analyzers
Guangzhou Biaoji Packaging Equipment Co., Ltd.
Y310 Oxygen Permeability Tester apply to test the oxygen transmission rate (OTR) of packaging materials, such as plastic film, composite film, coextrusion film, aluminum-plated film
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Toroidal Turns Analyzer
1000
International Electro-Magnetics, Inc.
The Model 1000 is designed to be used in production environments to test for actual turns on toroidal cores. It is able to test single winding toroids as well as multiple windings. It automatically compensates for variations in core permeability.
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Sensirion SHT31-DIS-B Humidity and Temperature Sensor Breakout Board
SEN-37002-F
Breakout board for the Sensirion SHT31-DIS-F with a built-in permeable membrane filter. This sensor is an extremely accurate digital (I2C interface) temperature and humidity sensing device, with +/-0.2C temperature and +/-2% humidity accuracy typical. These specs far exceed the accuracy of ICs that came before it, including the HTU2x and SHT1x series, and improves upon the success of the SHT2x that came before it. In addition, the SHT31-DIS-B has a wide input voltage range of 2.4V-5.5V and includes temperature isolation and airflow cutouts as recommended for the optimal operation. Finally, in the case of environmental changes that could cause light condensation, the SHT31-DIS-B has a built-in heater to burn off any condensate.
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400/5A CHEAP SPLIT CORE CAST RESIN CURRENT TRANSFORMER
LZCK310-10
Beijing GFUVE Electronics Co.,Ltd.
LZCK series outdoor waterproof current transformers are applicable for AC power system 35kV and measurement of current of power supply equipment below 10KV also can be used for microcomputer protection. This type of current transformer employs imported silicon steel which with high permeability as magnetic material, has the characteristics of Small magnetic circuit loss and can be split, its semicircular core and secondary windings employ high quality epoxy resin vacuum, casting in plastic-case(ABS or PC) which is flame retardance anti-moisture, stable performance, no maintenance.
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Formation Damage
Formation Response Testers (FRT) are designed to accurately measure the permeability changes of a formation sample when exposed to a variety of test fluids.
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Rapid Chloride Permeability
Perma
Giatec Perma™ is a completely re-engineered laboratory test device for the measurement of the electrical resistance of concrete against the penetration of chloride (RCPT) according to the standard methods such as ASTM C1202, AASHTO T277 and ASTM C1760. The measurement data can be used to estimate the chloride diffusion coefficient of concrete for the service life prediction and design of concrete structures as well as the durability-based quality control of concrete.
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DIGITAL TURNS TESTER AND DIGITAL LCRTZ METER
TURNS-LCRTZ
Digital TURNS TESTER with LCR for Counting / Measuring Number of Turns for Toroidal Coils , Current Sensor , Current Transformer , Round Core Coils. Can measure, Turns along with Winding Polarity , DC Resistance , Inductance (L), Capacitance (C), DC Resistance, Rac, Q, D, ESR and Tan.Toroidal Turns Platforms :TTPT100 : 5 T - 1000 T , TTPT1000 : 500T-10000 T The Platform has 2 connections for the coil and 2 for the probe wire. Measurement principle is based on dynamic comparison of the voltage across one turn and the coil. You will be able to get the polarity or winding indication with respect to the one turn reference.Accuracy : + 0.2% + 0.5T for high and medium permeability cores at suitable test frequency. Internal Diameter must be able to pass a wire as thin as 0.2 mm. External Diameter as high as 200 mm.Test Frequency Selectable in Step : 50 Hz, 100 Hz , 500 Hz, 1 KHz, 5 KHz, 10 KHz. Test Voltage adjustable : 100mV to 1V in steps of 50mV.
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Gas Permeability Tester with Differential Pressure Method
GPT-203
GPT-203 Gas Permeability Tester is based on the differential pressure method and is professionally applicable to the determination of permeance and permeability of plastic films, composite films, high barrier materials, sheeting, metal foils.
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Air Permeability Tester
TF164B
TESTEX Testing Equipment Systems Ltd.
Our Air Permeability Tester determines the resistance of fabrics (woven, knitted and non-woven textile materials) to the passage of air (air flow) under constant pre-set air pressure while firmly clamped in the test rig of selected test head/area.The specimen is loaded to the test area of the instrument easily by means of a pneumatic holder. By pressing down the holder to start the test. The air permeability tester is equipped with a vacuum pump to draw air through an automatic interchangeable test head with a circular opening. The pre-selected test pressure is automatically maintained, and after a few seconds the air permeability of the test specimen is digitally displayed in the pre-selected unit of measure on the touch panel after test the holder is released and the vacuum pump is shut off.
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Air and Water Permeability in Concrete Both At and Below the Surface
Poroscope
Poroscope Plus measures the time it takes for air to flow into a known volume of a sealed, evacuated chamber in the concrete. While the vacuum reduces from -55 Kpa to -50 Kpa, a measure of air permeability is determined. For water permeability, Poroscope Plus uses the same chamber filled with water, and measures the total time in seconds for a volume of 0.01 ml of water to escape.
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Solid Rod and Toroid Tester
H21 Series
Test pieces in round or square rod forms can be very easily tested for their DC properties. Properties such as coersivity, permeability, magnetization can be tested. The field for testing can be taken to 600A/cm. With our newly designed fixture, if can be taken up to 100A/cm.
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Materials Test Equipment
Materials test equipment and accessories for determining how materials interact with electromagnetic fields, by calculating permittivity and permeability. Accurate measurements of these material properties helps engineers achieve the best performance for an application, while shortening the design cycle and minimizing material scrap.
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DC Hysteresis Graph
DX-2012SD
Automatic measurement on basic magnetization curve and magnetic hysteresis loop under static state of soft magnetic material, accurate measurement on static magnetic characteristic parameters such as initial permeability µi, maximum permeability µm, saturation magnetic induction Bs, remanence Br, coercive Hc and hysteresis losses Pu.
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Standard Current Transformers
Measurements International Ltd.
Single Range, Highest Permeability, Wide Measurement Range, Negligible Current Errors, High Accuracy.
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Auto Water Vapour Permeability Tester
TF165B
TESTEX Testing Equipment Systems Ltd.
Water Vapour Permeability Tester, also called Water Vapor Transmission Rate Tester (WVTR Tester) is to determine the water vapor permeability of various textile and garment fabrics, coating fabric, composite, sportswear, and industrial fabrics. This tester complies with ASTM E96, GB/T 12704, JIS L1099, etc.
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Impedance Analyzer
6632
Frequency range: DC, 10Hz to 1/3/5/10/20/30MHz/50MHz. Basic accuracy up to ±0.08%. Automatic Level Control (ALC). Output impedance 25Ω/100Ω, switchable. Equivalent Circuit Analysis . Built-in DC Bias voltage ±12V. Ultra-high measuring speed < 3ms. Built-in the Dielectric constant-εr. Built-in the Permeability-μr. Support PC Link Software.
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Water Vapour Permeability Tester
TESTEX Testing Equipment Systems Ltd.
Water Vapour Permeability Tester, to determine the resistance of textiles and textile composites (particularly action wear fabrics) to water vapour penetration. Water Vapour Permeability Tester complies with BS 3424/7209, etc.
