Electromagnetic Field
electric and magnetic field interaction.
See Also: EMF, RF Field Strength Meters
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Electro Magnetic Meter
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
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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EMF Exposure Test
sXcTEM835
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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Consulting Services
Standards and Regulatory Management. Standards Development. Regulatory (FCC, FDA, Access Board). Areas of Technical Excellence: Electromagnetic Compatibility, Disability Access, Wireless Requirements, RF Safety (EMF & SAR), Product Compliance, Quality & Conformity Systems, Measurement of Electromagnetic Fields. Training - We offer a variety of course in various areas of compliance and technology. We also provide custom training, tailored to your needs, in our areas of expertise.
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Smart Fieldmeter Digital
RFP-05M
Electromagnetic field monitor having flexible and expandable architecture, state of the art design with convenience and simplicity for users on a budget.
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EMF Detector / EMF Tester Gauss Meter
EMF 701
A cost effective, handheld meter provides the user with quick,reliable and easy way to measure electromagnetic field (EMF) radiation levels generated by power lines, cables, computer monitors,TV sets, Video equipment and many other similar devices.
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Electromagnetic Field Detector
LCD display3 Digits LCD With 1999 Counts Low Battery Display On LCD Overload"OL" Display On LCD Accuracy(3%+3dgt) at 50Hz./60Hz. Frequency Response30Hz~400Hz Sampling RateApprox. 2.5 times/sec. Max Hold / Data Hold Battery9V x 1 Specifications0.1~200mG (milli Gause)
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Electromagnetic Field Tester
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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Cryogenic Probe Station
EMPX-HF
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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Antenna, Loop Sensor
EM-6873 | 20 Hz – 100 KHz
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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RF Test
RF is short for radio frequency. RF is any frequency within the electromagnetic spectrum associated with radio wave propagation. When an RF current is supplied to an antenna, an electromagnetic field is created that then is able to propagate through space. Many wireless technologies are based on RF field propagation. These frequencies make up part of the electromagnetic radiation spectrum.
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Inductive Sensors
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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SAFEONE® Pro Personal RF Safety Monitor
Pro SI-1100XT
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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Inductive Sensors
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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Stripline 50/90 Ohm DC-1GHz Mod. STPL
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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Air Core Inductors
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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GSM RF Interference Test System
Guangzhou Jumho Electric Co., Ltd.
Cell phones and other wireless devices radiate powerful electromagnetic fields that can cause interference and noise in microphone signals. The interference and noise is called RF interference, which is an unwanted “signal” that occurs at the same time and frequency as a data signal. The RF interference disrupts the flow of data and degrades quality-of-service. Jumho Electric provides a cost-effective RF interference test system for GSM interference level measurement of wireless microphone.
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Solar Power Meters/Electromagnetic Field &Radiation Tester
This meter is a precision instrument for measuring light intensity. It is used in solar radiation measurement, solar research, physical and optical experiments, meteorology, and agriculture. I can also be used to measure glass ligh intensity to verify glass properties. For example: Measurement of light intensity through vehicle windows.
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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.
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Horn Antennas
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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Magnetic Radiation (Gauss Meter)
A gauss meter can detect either static (DC) permanent (rare-earth) magnetic or dynamic (AC) electromagnetic fields (EMFs), or both.
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Current Caliper
KH23101
Beijing KeHuan Century EMC Technology Co,.LTD
The KH23101 current caliper is a toroidal transformer used to measure EMI current. When measuring, the caliper does not directly touch the electrical conductor or the cable under test. The conductor passing through the caliper window is used as the single-turn primary wire of the transformer, and the secondary is designed to be multi-turn. Use with 50 Ω receiving system (such as EMI electromagnetic interference field strength meter or spectrum analyzer). In order to facilitate installation and rapid measurement of EMI current, it is designed as a caliper that can be opened.
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CAE Software
Femtet
Femtet is the simulation software based on the finite element method. It solves 8 physical phenomena (electric field, magnetic field, electromagnetism, mechanical stress, thermal conductivity, fluid, acoustic waves, and piezoelectricity). Multiphysics between the solvers are available as well. Its extensive functions include modeling, automatic meshing, and results display.
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Electromagnetic Express
EM-X
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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RFID Software
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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Specific Absorption Rate (SAR) Testing
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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EMI/EMC Compliance Consulting
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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Magnetic Resonance Instruments
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 over Fiber Link TX/RX
L-Band
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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RFID Tags
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.
