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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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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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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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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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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Compact Accelerometer (Shock Meter)
AP2019
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Can be used as shock sensors in equipment diagnostic systems; Combination of high axial sensibility, intrinsic frequency and shock resistance; Low sensitivity to electromagnetic fields; Low intrinsic noise level.
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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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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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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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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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Field Strength Meters
FIM-22 And FIM-41
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The Models FIM-22 and FIM-41 are portable field strength meters designed to provide precise, direct measurements of electro-magnetic fields in the 200 kHz to 5.0 MHz spectrum. These units include a receiver, integral shielded loop antenna, precision attenuator, internal calibration source, and battery power supply. With calibration accuracy traceable to the National Institute of Standards and Technology, the FIM-22 and FIM-41 meet the most exacting requirements of government and industry. Their hinged covers, on the rugged drawn aluminum cases, contain a loop antenna. Opening the cover to a vertical position connects the antenna terminals to the receiver via maintenance-free gold-plated contacts. An interlock switch prevents inadvertent battery discharge when the cover is closed.
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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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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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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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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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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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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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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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3-AXIS DIGITAL AC GAUSSMETER: 1-200 kHz
IDR-200
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Integrity Design and Reseach Corp.
Typical Applications include checking the frequencies and magnetic fields (BW: 1 kHz -200 kHz) produced by equipments such as computer monitors, television sets, video display terminals, induction heaters, industrial, Radar, scientific/medical equipment, walk-through/hand-held detectors and ground wave energy network; etc. For more information about VLF magnetic fields and the VLF gaussmeter , see the paper titled "Very-low-frequency electromagnetic field detector with data acquisition," IEEE Trans. Instrum. Meas.,vol. 58, no. 1, pp. 129-140, Dec. 2008. by S. Hanna.
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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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Horn Antennas
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Horn antennas can be used for emissions and immunity testing. These antennas are constructed using light weight aluminum with a corrosion resistant conductive coating for indoor or outdoor use. Each antenna is individually calibrated. The calibration data and certificate will be shipped with each antenna.The high gain reduces input power requirements to generate high electromagnetic field levels for immunity testing. High gain also increases antenna sensitivity to low level signals.
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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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Inductive Heater
BD-1.01
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The device is assigned to heat the bars to the state, which allows upsetting. The DB-1.01 heater characterizes especially high watt-hour efficiency (bigger than 98%) thanks to suitable concentration of electromagnetic field in the heating zone of inductor (the solution secured by patent). It is possible to addapt the nductive heater BD-1.01 for heating any others bars.
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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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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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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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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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Surge Generators
Hybrid
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Surge pulses occur due to direct or indirect lightning strikes in a circuit or by switching transients caused by switching inductive loads or short circuits. This leads to currents or electromagnetic fields causing high voltage or current transients. Surge voltages and currents can reach several thousands of volts and thousands of amperes. Our following Surge generators simulate these disturbances for all the necessary level in accordance with IEC / EN 61000-4-5 and IEC / EN 60060.
