EMF
electric and magnetic field interaction.
See Also: Electromagnetic Field, EMF Meters, Inductance
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EMF / RF / Radiation Meters
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Sper Scientific EMF meters measure Electro Magnetic Frequency radiation levels. Whether you're measuring EMF emissions from electrical power lines and transmission equipment, computers, HVAC, audio/video or other electrical appliances, our meters are small and light enough to go anywhere, yet sensitive enough to detect minuscule amounts of EMF radiation.
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Low-Thermal EMF LXI Matrices
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Pickering low-thermal EMF LXI matrices offer excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in automatic test equipment, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC microvolt measurements.
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EMF Detector
ElectroSensor™
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This EMF detector is an unparalleled value that offers fast, reliable, and user-friendly measurements of electromagnetic pollution. Since man-made alternating current (AC) is different from naturally occurring EMF, some sources say that even extended exposure of as low as 2 milliGauss may be harmful. Fortunately, once EMF sources are identified with your ElectroSensor you can moderate your distance and exposure.
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LXI Low Thermal EMF Matrix 1-pole 14x33
60-510-004
Matrix Switch Module
The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset. The 60-510 is designed in accordance with the LXI Standard 1.4 and is supplied in a 2U high, full rack width case with 500mm depth.
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LXI Low Thermal EMF Matrix 1-pole 56x33
60-510-001
Matrix Switch Module
The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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LXI EMR Low Thermal EMF Matrix 42x33
60-511-002
Matrix Switch Module
This high density 1-pole matrix has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix.
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Product
LXI Low Thermal EMF Matrix 1-pole 42x33
60-510-002
Matrix Switch Module
The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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PROFESSIONAL 3-AXIS EMF DIGITAL GAUSSMETER
FWBELL 4000 series
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Integrity Design and Reseach Corp.
Typical Applications include checking the 50 and 60 Hz magnetic fields (EMF) produced by equipments such as AC Power Lines, Office Equipment, Video Display Terminals, Household Appliances, home and Building Inspection, etc.. Magnetic fields are invisible radiations, the best method to measure the strength fields is to use one of the accurate gauss meters offer by Integrity Design & Research corp.
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LXI Low Thermal EMF Matrix 1-pole 28x33
60-510-003
Matrix Switch Module
The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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LXI EMR Low Thermal EMF Matrix 14x33
60-511-004
Matrix Switch Module
This high density 1-pole matrix has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix.
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Personal Safety EMF Measuring Equipment
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EME (electromagnetic energy) RF Exposimeter / Personal monitors, worn on the person. The devices monitor the electromagnetic fields and warn of excessive field strengths, e.g. when working on industrial equipment, broadcasting or mobile phone stations, radar installations or other sources of electromagnetic radiation.
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EMF Measurements Antennas
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An isotropic antenna that allows to carry out radiated emission and environment exposure measurement (elettrosmog) to the radio frequencies in proximity of radio and television stations and repeaters for mobile telephone.
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LXI EMR Low Thermal EMF Matrix 56x33
60-511-001
Matrix Switch Module
This high density 1-pole matrix has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix.
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Product
LXI Low Thermal EMF Matrix 1-pole 44x33
60-510-021
Matrix Switch Module
The 60-510 is a high density 1-pole matrix module controlled via LXI. It has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix. Typical applications include signal routing in ATE, selecting thermocouple inputs, switching amplifier gain circuits and high accuracy DC micro-volt measurements. Ruthenium reed switches are used because of their good low level switching capability. They also have a very long life with excellent contact resistance stability, minimal wetting current and low thermal offset.
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EMF Measurements/EM Measurements/Electromagnetic Radiation
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Holland Shielding Systems B.V.
Electromagnetic fields cause interference in electronic devices and may affect the health of people close to where the fields are generated. It is important to recognize this at an early stage in a construction process, for instance at a future construction location or while construction is already underway, so that budgets are not exceeded. By means of field-strength measurements one can chart the existing electromagnetic fields and radiation emitted by GSM, UMTS antennas and transformer spaces, to mention a few examples. These measurements can help determine the best location in the new building for rooms where sensitive measurements are to take place, e.g. in hospitals or nano laboratories. And last but not least, field-strength measurements can detect sources of interference and can be part of a scheduled check of existing screened spaces and Faraday cages.
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Winding Resistance Meter
TRM 104
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TRM104 is a portable winding resistance meter, designed to work in live EHV switchyards. Winding resistance values of large transformers up to 500 MVA and rotating machines are directly displayed. The meter is protected against the back emf offered by large inductive winding. A back-lit 4 line LCD with a user-friendly menu sets up the instrument for the test. Winding resistances and safety messages are also shown on this display. It is possible to measure the resistance of two windings simultaneously.The meter contains a special power source for rapid stabilization of test results.
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Area Monitoring: Measuring Stations And Measuring Sytems
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In everyday life, we are surrounded by electromagnetic fields (EMF) wherever we are. They come from power lines, electricity cables, cellular radio and cordless phones and many other things, too. To protect the general public, the limit values are checked regularly and sometimes monitored continuously. Narda offers various measuring stations and systems for this purpose.
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Calibration
RF Test Equipment
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We calibrate following types of RF test equipment:EMF test systems (frequency selective)EMF test systems (broadband)Field strength transfer standards (e.g. RefRad)Line Impedance Stabilisation Network (LISN)Cable, attenuator, couplerAntennaField Probe
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Selective EMF Measuring Equipment
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Selective measuring equipment for electromagnetic fields (EMF) for demonstrating safety and environmental compatibility. The devices analyze individual frequency ranges and field exposure levels accurately down to a single communications channel. They also calculate the sum and compare levels with current limit values.
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Electromagnetic Field Tester
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The EMF tester is designed to provide user a quick, reliable and easy way tomeasure electromagnetic field radiation levels around power lines, home appliancesand industrial devices.
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EMF Testers
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TES Electrical Electronic Corp.
Frequency range 10MHz to 8.0 GHz3 axis isoltropic measurements of EMFNon-directional measurement with three channel measurment probe. High dynamic range.Configurable alarm threshold and memory function.
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EMR Testing
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It is widely accepted that exposure of the human body to high levels of Electromagnetic Radiation (EMR), Electromagnetic Energy (EME) or Electromagnetic Fields (EMF) may lead to adverse health effects. To ensure the protection of personnel in the workplace and to protect members of the general public, it is essential that the EMR levels comply with relevant exposure limits set by regulators in each country.
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Motor Starting & Control Resistors
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Motor Starting Resistors are used to reduce the voltage at the motor terminals and also decrease the starting current. Motor Starting Resistors are necessary because the self resistance of a motor armature is very low. When the voltage is first applied, excessive current will flow. For limiting this current, since there will be no resisting back electromotive force (emf),some series resistance can be added to the armature windings.
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LXI EMR Low Thermal EMF Matrix 28x33
60-511-003
Matrix Switch Module
This high density 1-pole matrix has excellent thermal stability and substantially reduced thermal EMF figures when compared to a conventional switching matrix.
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Product
Wideband EMF Measuring Equipment
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Measuring equipment for electromagnetic fields (EMF) for demonstrating safety and environmental compatibility. The devices measure the total electric and/or magnetic field strength and automatically compare it with limit values specified by national and international bodies in standards or directives.
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EMF Exposure Test
sXcTEM835
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Tests radiofrequency electromagnetic field exposures from mobile communication devices operating in the 900 MHz region (additional frequencies upon request). The setup is based on two Crawford TEM cells that are blindly excited by a fully computer-controlled signal unit.
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Electromagnetic Flowmeters
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Measuring for process management, revenue collection, liquid transportation and energy conservation. Whatever the application, ABB´s intelligent design, state-of-the-art technology and advanced features work harder and smarter to make your operations more efficient and cost effective.ABB offers the most comprehensive range of EMF product lines tailored to your needs.
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Milliohm Meter
16502
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Chroma Systems Solutions, Inc.
Basic accuracy : 0.05%Pulsed test current output mode is used to reduce thermal EMFs affection on milliohm measurementDC test current output mode is used to fasten measurement speed for inductive DUTDry-circuit test current output mode (limited Max. 20mV) is used to measure such contact resistances where the maximum open-circuit voltage must be limited to 50mVTemperature correction (TC function) regardless of material or temperatureUseful temperature conversion function for motor/ coil evaluation4 channels R scan with balance check function for fan motor (combined with A165017 option)0.001mΩ~1.9999MΩ wide measurement range with 4½ digits resolutionStandard RS-232 interfaceOptional GPIB & Handler interfaceBin-sorting functionComparator and pass/fail alarming beeper functionLarge LCD display (240 x 64 dot-matrix)Friendly user interface
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Spring/Non-Spring-Loaded Thermocouple
8PT25
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The AMETEK 8PT25 Spring/Non-Spring-Loaded Thermocouples for Frame 6, 7 and 9 applications have been designed, fully tested and qualified to meet OEM specifications. Power Instruments’ expertise in solving creep, stress rupture, corrosion, EMF drift and other problems affecting sensor performance has resulted in a robust line of single and dual element thermocouple designs. This thermocouple is immersed directly into the turbine fluid to monitor temperature while in operation.
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Single AXIS DIGITAL AC GAUSSMETER
IDR-109/IDR-119
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Integrity Design and Reseach Corp.
Typical Applications include checking the 50 and 60 Hz electric and magnetic fields (EMF) produced by equipments such as transmission lines, computers, electric blankets, electric appliances, televisions, etc.. Magnetic fields are invisible radiations, the best method to detect them is by using one of the accurate gauss meter from Integrity Design & Research corp.
