Electromagnetic Field
electric and magnetic field interaction.
See Also: EMF, RF Field Strength Meters
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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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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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Electromagnetic Field Analyzer System
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A compact size electric antenna (The electric field analyzer system) that hasthe spectrum analyzer function. This instrument is most suitable to the radiation noise measurement ofelectric field from the system, such as the wireless power supply, that uses the frequency less than 30 MHz.
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Non-Contact Voltage Detector
VOLTCHEK
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The VOLTCHEK is a variable non-contact voltage detector, A proximity device which detects the presence of an alternating electric or electromagnetic field. It is used by industry professionals for live or dead voltage determination of outdoor overhead or underground at URD test points. Firstly as a proximity device to determine live or dead situations and then as a touch device to verify the source has physically reached the zero AC field. This is the only equipment capable of testing all voltage from AC 415V to 765kV from a distance, beyond arcing zone.
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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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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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Basic Heating Module
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Microwave heating analysis including loads rotation and translation, frequency tuning, heat flow and material parameters modification as a function of dissipated power. QW-BHM (Basic Heating Module) for QuickWave 3D provides a novel regime of operating the FDTD solver: the possibility of simulating microwave heating problems.The software has been prepared to work in sophisticated regimes, modelling rotation and movement of the heated load(s) even along complicated trajectories, etc. Transfer of the heat generated by electromagnetic fields can be modelled with external or internal Heat Transfer Module or by coupling QuickWave 3D simulations to external computational fluid dynamics packages.
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Human Exposure Measurements to Luminaries
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Through different ways of coupling between luminaries and humans, a level of exposure of a person to electromagnetic fields can be derived. One part of the exposure is based on capacitive coupling between lighting equipment and person. This creates induced internal electric field that must be evaluated using an EMI receiver and a Van Der Hoofden test head.
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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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Modeling Capacitors, Inductors, Insulators, Coils, Motors, and Sensors
AC/DC Module
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The AC/DC Module is used for simulating electric, magnetic, and electromagnetic fields in static and low-frequency applications. Typical applications include capacitors, inductors, insulators, coils, motors, actuators, and sensors, with dedicated tools for extracting parameters such as resistance, capacitance, inductance, impedance, force, and torque.
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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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Stripline 50/90 Ohm DC-1GHz Mod. STPL
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The EMC-STPL striplines are designed for automotive immunity testing of components according to the standards ISO 11452-5 and SAE J1113-23. Striplines are a variation of TEM lines which allow an application of electromagnetic fields with a good homogeneity in the test volume.
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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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Radiation (EMF, Nuclear, RF)
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Sper Scientific radiation meters measure EMF, Nuclear, and Microwave radiation levels. Whether you are, measuring the RF strength of Wi-Fi and LAN network, or the electromagnetic field emissions from electrical power lines and transmission equipment, computers, HVAC, audio/video, and other electrical appliances. Our meters are small and light enough to go anywhere, yet sensitive enough to detect minuscule amounts of gamma, beta or X-rays.
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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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Surge/wave Simulators
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Suzhou 3ctest Electronic Co.,Ltd.
Surge pulses occur due to direct or indirect lighting strokes to an external circuit. This leads to current or electromagnetic fields causing high voltage or current transients. Another source for surge pulsed is switching transients originating from switching disturbances and system faults.
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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 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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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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SAFEONE® Pro Personal RF Safety Monitor
Pro SI-1100XT
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SafeOne® Pro SI-1100XT is an effective and economical means to monitor the strength of electromagnetic (RF) fields from mobile phone towers, microwave ovens, radio and television installations, high frequency welders, and other common workplace RF sources between 10 and 18,000 MHz. The Personal RF Monitor is an important tool in complying with FCC, OSHA, and other safe workplace requirements.
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Electro Magnetic Meter
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This meter is used to indicate radiated electromagnetic fields. Wherever there is a voltageor a current, electric (E) and magnetic (H) fields arise.
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Predicting Microwave and RF Designs Virtually
RF Module
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The RF Module is used by designers of RF and microwave devices to design antennas, waveguides, filters, circuits, cavities, and metamaterials. By quickly and accurately simulating electromagnetic wave propagation and resonant behavior, engineers are able to compute electromagnetic field distributions, transmission, reflection, impedance, Q-factors, S-parameters, and power dissipation. Simulation offers you the benefits of lower cost combined with the ability to evaluate and predict physical effects that are not directly measurable in experiments.
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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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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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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 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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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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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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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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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.
