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Near-Field
1) EMF closest to the antenna. 2) Near-field optics.
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Combination Board Tester
ATE QT2256-640 PXI
Qmax Test Technologies Pvt. Ltd.
Most commercial ATEs does only functional test and do not carry out DC/AC parameter testing, which are very essential in increasing the fault coverage and for achieving near zero field returns. The testing challenges get worse when the boards are equipped with BS compatible components, DSP chips and CPUs or micro controller based boards. ATE QT2256-640 PXI system is designed as a combination board tester capable of testing highly complex and PCBs employing various techniques on a single platform. It can be easily upgraded to 640 digital channels and with programmable UUT power supplies, IEEE or PXI external instrumentation, Bus cycle signature system, ICE and integrated Boundary scan Test AC/DC parametric testing. The ATE is interfaced to an external host PC using a PCI express interface card allowing a maximum data transfer rate. Most commercial ATEs does only functional test and do not carry out DC/AC parameter testing, which are very essential in increasing the fault coverage and for achieving near zero field returns. The testing challenges get worse when the boards are equipped with BS compatible components, DSP chips and CPUs or microcontroller based boards.
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2D Near-Field Analysis of VCSEL Arrays
VTC 4000
Instrument Systems Optische Messtechnik GmbH
The VTC 4000 near-field camera from Instrument Systems was specially developed for the ultrafast, precise 2D analysis of VCSEL arrays. It enables polarization-controlled characterization of all relevant parameters simultaneously for the single emitters of the array.
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NI-5782, 100 MHz Bandwidth Transceiver Adapter Module for FlexRIO
782705-01
The NI‑5782 is ideal for applications that require the acquisition and generation of IF or baseband signals with in-line, real-time processing. You can analyze acquired signals in the PXI FPGA Module for FlexRIO to perform measurements and generate response signals. Application areas include RF modulation and demodulation, channel emulation, bit error rate testing (BERT), signal intelligence, radio frequency identification (RFID) and near-field communication (NFC) test, real-time spectrum analysis, and software defined radio (SDR).
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1050 MHz Tracing Signal Generator
SM-5011
is used for the early test in the development of electrical products, troubleshooting of CATV/MATV system as well as the test and trouble diagnosis of cellular phone system. Combined with the near field probes of Mz530, it can detect the missing fields of radio frequency
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USB Magnetometer
MultiDimension Technology Co.,Ltd.
A three-axis digital magnetometer that is intended for the measurement of magnetic fields near the probe tip at frequencies less than 250 Hz.
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Ultrafast Nearfield Optical Microscope
Femtosecond NSOM
Near-field Scanning Optical Microscope (NSOM) is a versatile tool for nano-characterization and nano-manufacturing.
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High Performance Analog & Mixed Signal Test Solutions
Applicos
Effective mixed-signal test solutions demand know-how and experience. Low level analog signals need to be stimulated and analyzed near fast switching digital logic. Cross talk, magnetic fields, clock jitter, ground noise and non-linearity of components, are just a few of the problems that must be addressed. Applicos knows what it takes to design and produce high quality mixed-signal test solutions. They have been servicing the mixed-signal test industry since 1993 and have established a distinguished reputation for providing our customers with high performance, cost effective solutions. In 2018 we acquired Applicos B.V. to extend our portfolio for the ATE business.
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Shielding Effectiveness/ Conductivity Test
EM-2107A | 30 MHz – 1.5 GHz
The EM-2107A is a standard test fixture for evaluation of the electromagnetic shielding effectiveness of planar material. The fixture is an enlarged section of coaxial transmission line and complies fully with the requirements of ASTM test method D4935-1. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred. The EM-2107A is provided with a reference standard test specimen, a dynamic range specimen. Dynamic range of greater than 80dB is achievable, although the cables and other test system components usually establishes the limiting factors.
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Near Field Probes
Used for accompanying measurements of high-frequency, electric and magnetic RF fields on assemblies and devices.
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Advanced Raman, AFM & SNOM Imaging Systems
alpha300 Series
Alpha300 series consists of advanced Raman, Atomic Force Microscopy (AFM) and Scanning Near-field Optical Microscopy (SNOM) imaging systems. Its sophisticated design ensures exceptionally high-throughput and sensitivity. A unique modularity allows for single-technique solutions as well as correlative imaging configurations.
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Near-Field Detection Module for Imaging
Transmission
Detection optimized for high performance near-field imaging in transmission-modeEnables optical amplitude and phase resolved near field measurementsPatented background-free detection technologyEnables bottom-side (transmission-mode) sample illumination with broadband mirrorSuited for visible and infrared wavelength range 0.5 20 mRequires transparent sample substrateMotorized parabolic mirror for easy beam-alignment in transmission-modeStationary focal point with respect to AFM-tipVariable illumination spot size (ca. 2m 100m)Suitable for plane-wave illuminationSupported AFM scan-speed: up to 20 m/s @ highest spatial resolution
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Near Field Probes
MFA Family
The micro probes allow detailed measurements of high-frequency magnetic fields in the layout, at the smallest SMD components(0603-0201) and at IC pins of printed circuit boards.
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Near Field Micro Probes ICR HH H Field
The measuring coil is horizontally located in the probe head. The near field micro probes are operated with a positioning system (Langer Scanner).
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Near Field Probes 30 MHz up to 3 GHz
RF1 set
The RF1 near field probe set consists of 4 passive near field probes for making measurements in the development phase of E-field and magnetic field in the ranges of 30 MHz to 3 GHz on electronic assemblies. The probe heads of the RF1 set allow for measurements close to the electronic assemblies, e.g. on single IC pins, conducting paths, components and their connectors in order to localize interference sources. Field orientation and field distribution on an electronic assembly can be detected through a trained special use of the near field probe. The near field probes are small and handy. They have a sheath current attenuation and are electrically shielded. They can be connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They do not have an internal terminating resistance.
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Test Fixture, Shielding Effectiveness
EM-2108 | 1.5 GHz – 10 GHz
The EM-2108 is a standard test fixture for evaluation of the electromagnetic shielding effectiveness (SE) of planar materials. The fixture is a section of coaxial transmission line broken to allow the insertion of planar test materials. Although ASTM D4935-10 is currently limited to an upper frequency of 1.5 GHz, the EM-2108 meets and complies fully with both the impedance and SE requirements called out in ASTM test method D4935-10 up to 10 GHz. These results are shown in Figures 1 & 2. The measured data relates to the shielding effectiveness due to a plane wave (far field EM wave) from which near field values for magnetic and electric fields may be inferred.
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Near Field Microprobe E-field 7 MHz to 3 GHz
ICR E150
The near field microprobe is used to measure electric fields at extremely high resolution and sensitivity. The optimal distance to the object being measured is < 1 mm. Due to its small probe head dimension, the probe has to be moved by a manual or automatic positioning system, e.g. Langer-Scanner.
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Preamplifier
Is designed for the amplification of measuring signals, e.g. weak signals of near field probes with high resolution.
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Large-size Hybrid Reverberation / Anechoic Chamber
F-Series
The F large-size hybrid Reverberation/Anechoic Chamber represents the most versatile OTA test system in the market today. With the same unique test features of their E Series RC counterparts, the F-Series can also test large form-factor devices under test (DUTs) like laptops, large TV sets, solar and trash compactors, drones, fridges or washing and vending machines, among others. With up to 16x16, 8DLCC and DUTs up to 2m and 500 kg including full-body phantoms in a turntable, the F Series also expands the frequency range down to cover 200 MHz up to 40 GHz frequency ranges and the test modes to include EMC, BS, small cell, eNodeB and Virtual Drive Testing over the air (VDT-OTA). In an again unheard-of feature, the F-Series is also reverse-convertible into an Anechoic chamber, allowing Far Field (FF) and Spherical Near Field (SNF) radiation patterns, efficiency and gain measurements and pre-5G testing of antennas and devices. Conversion from RC to AC or vice versa can be performed within half a day.
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RF Near Field Probe Set DC to 9GHz
EMF & RF close field sniffer-set for use with any Spectrum Analyzer or Measurement Receiver. The EMC Near Field probe set allows for straightforward pinpointing and measurement of interference sources in electronic component groups as well as execution and monitoring of generic EMC measurement. Our RF near field probe set is especially suitable for: - Pinpointing interference sources - Estimation of interference field strength - Verification of shielding and filtering measures - Identifying faulty components - Detecting circuitry overly sensitive to interference.
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Scanning Near Field Optical Microscope
SNOM
SNOM microscopes employ SPMs precision of piezoelectric raster-scanning together with sharp probes to obtain light optical images at rather better than the usual wavelength-limited resolution. The possibility to go beyond the Abbe diffraction limit has been achieved with the Near-field light optical microscopes (SNOM or NSOM).
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Emissions Test System
PC-114
Perform Radiated & Conducted EMI pre-compliance testing at your facility up to 1 GHz. Com-Power PC-114 EMI emissions test system is a ideal solution performing pre-compliance EMC testing from 9 kHz - 1 GHz.. It has essential equipment needed for radiated and conducted EMI emissions measurements. The system includes a spectrum analyzer, antennas, near field probes, a preamplifier, LISN and a non conductive antenna tripod. Pre-compliance testing in EMC is a commonly used term not easy to define. In general, it implies testing done prior to formal testing for legal compliance. Formal legal compliance is performed at a facility designed and equipped with test instrumentation that is fully compliant with the applicable EMC standards. Such facility and instrumentation is capital intensive and can be expensive even to rent and not easily available. Compliance testing is performed per exacting requirements of the Standards and other reference documents adhering to the test methods and last detail. In addition, the test facility may require to be accredited by an accreditation body such as NVLAP, A2LA. Often it is desirable to know prior to compliance testing at such facility, whether a product is close to compliance and also how close. Pre-compliance testing is specially useful for specifications such as FCC, Part 15, EN 55022 or EN 55011 (CISPR 22 or CISPR11). Pre-compliance testing usually means using the full compliance methods but making a few educated compromises in use of site or equipment to reduce costs and testing time. Here are some benefits of pre-compliance testing.
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Near-Field Detection Module for Spectroscopy
nanoFTIR
Reflective AFM-tip illuminationDetection optimized for high-performance near-field spectroscopyPatented background-free detection technologyBased on optimized Fourier-Transform spectrometerUp to 3 spectra per secondStandard spectral resolution: 6.4/cmUpgrade to 3 cm-1 spectral resolution availableSuited for visible & infrared detection (0.5 20 m)Exchangeable beam-splitter mount includedNEW: Suited for IR synchrotron sources
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Imaging Goniometers
Radiant Vision Systems fully-automated goniometric systems are combined with a ProMetric® Imaging Colorimeter or Photometer and specialized software to capture a precise, comprehensive model of a light source’s near-field output.
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Light Engines
Delivering the highest brightness and optical power available, our light engines provide optimized output solutions for a range of applications such as light guide and fiber optic coupling, fluorescence excitation, and unrivaled uniform near and far field illumination.
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Scanner Probe
RFS set
The RFS set consits of three passive near field probes designed for the use in a measurement scanner during the development of E-field and magnetic field. They are designed for frequency ranges of 30 MHz to 3 GHz. The probe heads of the RFS set allow for close measurements needed to correctly localize interference sources on an electronic assembly. They document the whole image of the device under test`s near field. The scanner probes have a sheath current attenuation and are electrically shielded. They are connected to a spectrum analyzer or an oscilloscope with a 50 Ω input. They do not have an internal terminating resistance. The measuring signal can be increased with PA 203 or PA 303 preamplifier. On request RFS, LFS and XFS scanner probes can be produced.
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RGO-2000P Robotic Goniophotometer For Plant Lighting
Hangzhou Everfine Photo-E-Info Co., LTD
RGO-2000P proposed a solution based on the plant lighting requirement to measure and evaluate the spatial light distribution performance of plant lighting based on the limitations of far-field measurement and ILMD near field distribution goniophotometer.
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Scanning Magnetic Microscope
Circuit ScanTM 1000
Operating circuits within a semiconductor generate external magnetic fields near the surface of the device. These magnetic fields, while weak in strength, contain information about the spatial variation of current density flowing within the circuit. Micro Magnetics has developed the CS1000 to make practical use of this information and provide engineers with valuable information about what is going on inside circuitry non-destructively.
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Passive Magnetic Antennas, TX-Loop Antennas
A passive loop antenna which is matched to a resonance frequency of 13.56 MHz with 370 kHz bandwidth (-3dB)The purpose of the antenna is to produce defined magnetic fields at 13.56 MHz efficiently, i.e. to test near field communication devices (NFC) or RFID equipment.
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Near Field Micro Probe Sets
The near field probe is designed for a high-resolution measurement of electrical near fields.
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Near Field Probes
A typical emi emission test is performed using broadband EMC antennas such as biconical, log periodics, Combilogs and horns. These antennas usually placed at 1, 3 or 10 meter distance as required by the test specification. These is considered far field measurements and the emission limits are given for the specific distance by the specification. During EMI compliance measurements, the emissions levels from products are compared with these limits. If the product exceeds these limits it is considered failing. These tests are typically conducted in a open area test site IOATS) or inside an anechoic chamber.
