Permeability
influence of material on magnetic flux, gases or liquids as they pass through.
See Also: Magnetic Permeability, Soil
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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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Air Permeability Tester
TF164
TESTEX Testing Equipment Systems Ltd.
Auto Air Permeability Tester, is used to determine the air permeability of fabric totally automatically. With its wide measuring range, the air permeability tester is suitable for all kinds of knitted, woven, non-woven, and coated fabrics, paper, film, leather, etc. Air Permeability Tester complies with GB/T5453, ISO 9237, ISO 9073:15 and etc.
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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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Water Vapor Transmission Rate WVTR Tester
WPT Series
Water Vapor Permeability Tester is based on the Gravimetric method and is applicable to the water vapour transmission rate (WVTR) test of plastic films, composite films, sheets and other materials.
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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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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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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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Magnetic Permeability Meter Ferromaster
Instrument for easy measurement of the relative magnetic permeability µr of feebly magnetic materials and workpieces with a permeability between 1.001 and 1.999. The permeability is measured by touching the workpiece with the probe tip and reading the result from the display. Typical applications are: non-destructive testing of materials, e. g. quality control of stainless steel, material selection for electron-/ion-beam equipment, detection of material defects induced by mechanical or thermal stress.
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Magnetic Property Characteristics Measurement System (from 100kHz to 14GHz)
KEYCOM’s magnetic property characteristics measurement system delivers ideal measurement solutions for complex permeability μr''- jμr'''', ferromagnetic resonance relaxation coefficient α, resonant line width ΔH in wideband from 100kHz up to 14GHz.
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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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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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Moisture Permeability Tester
DRK501F
Shandong Drick Instruments Co., Ltd.
The principle of moisture permeable cup weighing method is to measure the transmittance of water vapor to film, sheet, paper and other materials by weighing the weight of moisture permeable cup.
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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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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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Waveguide Cassette
Waveguide cassettes provide easy way for the network analyzer calibration and material properties as dielectric permittivity or (and) magnetic permeability measurements. By changing insertion sections, it is possible to calibrate "Short" and "Thru". Optional cassettes with quarter wave "short" inserters are available. Using this waveguide cassette, it is possible to do vector network analyzer calibration or additional scalar network analyzer calibration. Insertable sample holders supports two measurement methods: the rod in the centre of the waveguide and filled waveguide cross-section.
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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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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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Standard Current Transformers
Measurements International Ltd.
Single Range, Highest Permeability, Wide Measurement Range, Negligible Current Errors, High Accuracy.
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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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Magnetic Field and Permeability Measurement
MAGNETOSCOP® 1.070
Foerster Instruments, Incorporated
The MAGNETOSCOP 1.070 is a portable magnetometer system with microprocessor and probes for measuring the magnetic flux density as an absolute or differential value (gradient). It has a USB port for simple data transfer and an SD card for saving measurement data and parameters. The measuring system also facilitates the recognition and saving of peak values and the adjustment of thresholds for limit values. The unit can be used for series and individual measurements. The data can be easily analyzed and documented with the PC software included in the scope of delivery. The MAGNETOSCOP 1.070 thus facilitates the portable and fast measurement of the relative permeability within the scope of the quality control of stainless steel and low-permeable (non-magnetic) alloys as well as the localization of ferrite enclosures. Changes in material (sulfidation, degradation of lamination, structural changes) can also be proven thanks to permeability comparative measurements.
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CTGcalc™ Software
CTGcalc™ is a Windows application that sets up microwave network analyzers, acquires measured S-parameter data, and analyzes the acquired data for CTG’s various measurement fixtures. CTGcalc™ allows the user to extract complex dielectric permittivity, magnetic permeability, or sheet impedance of the measured specimens.
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Water Vapor Permeability Analyzer
Guangzhou Biaoji Packaging Equipment Co., Ltd.
GBPI Water Vapor Permeability Analyzer used to test the water vapor transmission rate (WVTR) of packaging materials, such as plastic film, composite film, coextrusion film, aluminum-plated film, aluminum foil.
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Strength Testing
Sataton Instruments Technology CO., Ltd
Air permeability tester is professional designed to determine the permeability of materials to air. By testing the rate of flow of air passing perpendicularly through a given area of tested sample under a given pressure over a given time period, the tester can provide results of air permeability performance by calculation the indices. The air permeability testing instrument is applicable to many type of materials, including industrial fabrics, nonwovens, made-up textiles, paper and board, foam and other materials.
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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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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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Water Vapour Permeability Tester
UI-FT16
Water Vapour Permeability Tester (WVP) is applied to test the water vapour permeability of all kinds of leather.
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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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Zero Gauss Chamber
IDR-800
Integrity Design and Reseach Corp.
Two cylindrical tubes are equal in length (12"), one is inside the other, both of them are closed at one end. At the other end, the inner tube is open (Radius=1").The cylindrical tubes are made from high permeability material.The magnetic field inside the inner tube is almost annulled.Optional use with the Geomagnetometer IDR-321 to provide a zero gauss (magnetic field-free environment) reference, enabling you to take absolute readings of the ambient magnetic field (the Earth's magnetic field is typically around 500 mG)
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Electrical Measurements Test
The tests are performed to measure and collect data from electrical and electronic parts using various measurement methods including, but not limited, to the following: capacitance, resistance, winding resistance, insulation resistance, magnetic permeability, power input, and quality factor Q.
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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.
