Electromagnetic Field
electric and magnetic field interaction.
See Also: EMF, RF Field Strength Meters
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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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Vehicle Electromagnetic Field Test System
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Beijing KeHuan Century EMC Technology Co,.LTD
Vehicles are the daily means of transportation for our public, and the electromagnetic pollution in vehicles has received more and more attention from the public. The newly revised mandatory standard GB27630-201X "Air Quality Evaluation Standard for Passenger Cars" intends to require the electromagnetic field in the vehicle as one of the indicators. The measurement method measures the magnetic field strength in the vehicle. Within the frequency range of 10Hz-400kHz, the electromagnetic field measurement results should meet the requirements of the public limit of electromagnetic exposure in GB8702-2014.
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Vehicle Electromagnetic Field Exposure Test System
SEM-400
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Beijing KeHuan Century EMC Technology Co,.LTD
Vehicles are our daily public transportation. Electromagnetic pollution in vehicles has attracted more and more public attention. The newly revised compulsory standard GB27630-201X "Passenger Car Air Quality Evaluation Standard" intends to require the electromagnetic field in the car as one of the indicators, according to GB/T37130-2018 "Measurement method of vehicle electromagnetic field relative to human exposure" The measurement method is to measure the intensity of the magnetic field in the car. In the frequency range of 10Hz-400kHz, the electromagnetic field measurement result should meet the public limit requirements of GB8702-2014 for electromagnetic exposure.
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Cryogenic Probe Station
EMPX-HF
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The Lake Shore EMPX-H2 probe station enhances standard probe station capabilities with the addition of a ±0.6 T horizontal field electromagnet. All standard C-V, I-V, microwave, and electro-optical probing, plus in-plane horizontal field electromagnetic measurements can be performed on this versatile station. Researchers can use it for testing magneto-transport parameters. The EMPX‑H2 is Lake Shore’s premier probe station for vector-dependent magneto-transport measurements.
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RF over Fiber Link TX/RX
L-Band
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QuestTel's Satellite L-Band optical fiber Transmitter/Receiver set offers high pefromance and cost effective alternative to conventional coaxial systems. The L-Band Transmitter and Receiver pair is used for transporting L-Band RF over fiber from the antenna to the satellite receiver. Additionally transmitter provides optional 13/18V LNB power as well as Automatic Gain Control (AGC) to manage RF input level. By transporting the L-Band RF over fiber this range can be extended from several hundred feet to over 80 miles. Since optical signal is not affected by electromagnetic field, the quality of your signal will always stay at the high level. Also this fiber solution is more cost effective than coaxial system, as well as more reliable and flexible.
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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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Field Strength Analyzer
SRM-3006
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Selective measurement of high frequency electromagnetic fields. Complete, easy to use test system, consisting of a base unit and measuring antennas, for non-directional detection of fields and their sources in the frequency range from 9 kHz to 6 GHz and from 24.25 GHz up to 29.50 GHz with 5G FR2 Antenna.
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Air Core Inductors
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Osborne designs our Air Core Inductors to realize their advantage of high linearity. We also work with our clients to identify and mitigate any potential disturbances that could result from electromagnetic fields created. The air core design approach is known to create strong electromagneticfields. Osborne develops electromagnetic circuit models, if necessary, to ensure that our clients build effective and reliable circuits.
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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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Electromagnetic Express
EM-X
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Is a physics modelling package for electromagnetic fields and charged particles. A CAD component allows the definition of mechanical parts and assignment of electric potentials, magnetization and charged particle sources. A time domain, particle-in-cell (PIC) tool then solves the electromagnetic fields and moves the particles within them. The particles’ own charges andmotions are fed back into the electromagnetic fields allowing the effects of space charge and selfmagnetism to be accounted for.
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Inductive Sensors
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Inductive Proximity Switches, self contained, depend on the output of an oscillator for their operation. The oscillator resonant circuit uses an open core coil to produce a concentrated high frequency electromagnetic (RF) field, which emerges from the active surface of the sensor. If a metal target (or other electrically conductive material) enters this field, eddy currents will be induced in it, causing the resonating oscillator to be damped.
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Electromagnetic Field Testers, EMF Testers
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Lutron Electronic Enterprise Co., Ltd.
Electromagnetic Field Testers, EMF Testers by Lutron
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RFID Tags
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RFID tags bring the future of technology to today. Radio-frequency Identification(RFID) tags can be placed on almost any piece of clothing, cash, animals and even humans. Tags use electromagnetic fields to identify and track the desired object. Active tags are powered by a battery located inside the tag, and may operate over hundreds of meters away from the RFID reader. RFID tags have been expanding ever since their inception – they became especially popular when used in toll readers and assembly lines to track the product’s progress throughout the assembly line.
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Gauss Meters
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A gauss meter displays electromagnetic wave measurements in Gauss (G), milliGauss (mG), milliTesla (mT) or microTesla (µT) units. A gauss meter can detect either static (DC) permanent (rare-earth) magnetic or dynamic (AC) electromagnetic fields (EMFs), or both. Thus, it is important to review the specifications of a gauss meter prior to purchase to ensure suitability for the intended application.Neodymium (NdFeB) permanent magnets are among the world's strongest and most widely used magnets. When testing magnets made of neodymium or other rare-earth elements, a gaussmeter or magnetometer capable of measuring DC magnetic fields is required. However, most electromagnetic fields encountered are generated by AC currents. Examples include electrical power lines, transformers and wiring for overhead lighting, solar panels and other electrical devices and equipment. Electromagnetic fields from electrical installations are believed to cause feelings of nervousness, anxiety and paranoia in EMF-sensitive human beings.Most gaussmeters offered by PCE Instruments can be calibrated and certified according to DIN ISO 9000 standards for an additional fee. Replacement gaussmeter probes and optional accessories are available for most gaussmeter models.
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Materials Test Equipment
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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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Magnetic Radiation (Gauss Meter)
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A gauss meter can detect either static (DC) permanent (rare-earth) magnetic or dynamic (AC) electromagnetic fields (EMFs), or both.
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EMC Testing
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Does your product send or receive electromagnetic data? This can be analyzed using various tests. We investigate the interference immunity and emitted interference of simple electrical devices and complex machinery. Our EMC measurements and tests conducted in accordance with standards recognize all activity in the electromagnetic field and ascertain how immune to interference a piece of equipment is. We will also offer guidance on optimizing the product in terms of its EMC properties during the development phase.
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Specific Absorption Rate (SAR) Testing
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SAR limits are there to protect all of us from wireless devices that exceed the transmit Radio Frequency (RF) threshold. SAR stands for Specific Absorption Rate. It's a measure of the rate at which energy is absorbed by your body when you are exposed to an RF electromagnetic field. In some countries, the SAR test result figure has to be displayed at the point of sale. To have a presence in these markets, your products must meet strict SAR regulations.
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RF Safety Monitoring
fieldSENSE 2.0
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LBA's FieldSense 2.0 personal RF safety monitors are an effective and economical means to monitor the strength of electromagnetic (RF) fields from wireless cell phone towers, microwave ovens, television stations, and other common workplace RF sources between 50 and 6000 MHz, E-field and H-field (sensed as a plane wave). The Personal RF Monitor is essential RF safety equipment in complying with FCC, OSHA, Canadian and other workplace rf safety requirements.
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EMF/ RF Field Strength Meter
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Designed for measuring and monitoring Radio–Frequency electromagnetic field strength.
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Product
Antenna, Loop Sensor
EM-6873 | 20 Hz – 100 KHz
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The EM-6873 Loop Sensor Antenna uses passive circuits to transform magnetic field components between 20 Hz – 100 kHz to an equivalent open circuit two-terminal voltage on the receiving instrument. Use of the conversion Factor Chart, supplied with each antenna, will yield the strength of the magnetic induction field referenced to a uniform field. The loop is electrostatically shielded and therefore is sensitive only to the magnetic component (B-field) of the electromagnetic fields.
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Inductive Sensors
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In general, inductive proximity switches consist of four basic elements: a coil, an oscillator, a threshold switch and an output stage with short-circuit protection.The oscillator generates a high frequency, electromagnetic alternating field which is emitted from the active face of the coil.Eddy currents are induced in a metal object that enters this field. These eddy currents draw energy from both the electromagnetic field and from the oscillator which is consequently attenuated.The more energy taken the closer the metal object moves towards the active face. The threshold switch switches on the output stage at a defined attenuation value.In proximity switches with a DC voltage supply, this switch is designed as an NPN transistor which switches the connected load to the negative pole or as a PNP transistor which switches the load to the positive pole. The output stage is a thyristor or a triac in AC voltage switches.
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Magnetic Resonance Instruments
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Integrated Dynamics Engineering
MRI systems represent a significant investment. As magnetic resonance images can be distorted by electromagnetic fields, frequently the location is isolated by passive shielding to somewhat insulate the detectors from image distorting EMI. But for a fraction of the cost of the machine an active EMI compensation can fully protect the image from damaging fields generated by other electrical equipment, passing traffic, elevators or other nearby equipment.
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RFID Software
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Radio Frequency Identification technology, commonly referred to as RFID, uses electromagnetic fields for the purposes of identifying and tracking objects. More recently, the technology has moved into mainstream applications that speed up the handling of manufactured goods and materials by attaching RFID tags to them. RFID technology has been around since the 1970s but its high cost and limited practical applications have discouraged its use up until recently.
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3D/2.5D Time-Domain Electromagnetic Field Solver Software
EM-CORE ®
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3D/2.5D Time-Domain Electromagnetic Field Solver Software for Planar-Circuit and Antenna Simulation. 3D & 2D Radiation Patterns Modeling, Spiral Inductors Modeling, 3D EM Modeling of Filters, Intuitive Geometry Build, and more!
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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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EMI/EMC Compliance Consulting
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EMI Devices offers a broad range of consulting services in the field Electromagnetic Compatibility. Our extensive knowledge of consumer electronics and worldwide regulatory requirements allow us to design Electromagnetic Compatibility Regulatory Compliances from the start.
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TEM Cells
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Transverse Electro Magnetic (TEM) cell or Crawford cell (named after its inventor) is used to generate accurate electromagnetic waves over a wide frequency range: DC (0 Hz) to GHz., EM waves generated in the cell propagate in transverse mode and have the same characteristics as a plane wave. It can be used to calibrate E-field broadband probes for testing radiated E-field immunity as well as for measuring radiated emission from a product with a spectrum analyzer/EMI receiver.TEM cell generates a consistent electromagnetic field for testing small RF devices such as wireless pagers, receivers, portable phones, etc.
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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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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.
