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Similar Topics: Near-Field

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1) EMF closest to the antenna. 2) Near-field optics.


Showing results: 46 - 60 of 84 items found.

  • Hearing Aid Compatibility Automated Test System

    MiNi-HAC - APREL, Inc.

    Hearing Aid Compatibility (HAC) evaluation of wireless handsets ensures accessibility of these technologies to the hearing impaired. The MiNi-HAC system can be used for the design and development of wireless handsets as well as for evaluation of hearing aids used by the hearing impaired to gain access to mobile wireless technologies. RF Emissions Test - near field measurements of the electric and magnetic fields emitted by a wireless device.

  • Test Fixture, Shielding Effectiveness

    EM-2108 | 1.5 GHz – 10 GHz - Electro-Metrics Corp.

    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.

  • Zero Gauss Chamber

    ZGC - Alpha Lab, Inc.

    The model ZGC zero gauss chamber reduces the environmental magnetic field (Earth field) to near zero inside the chamber. Any gaussmeter probe which is less than 9.4 mm or 0.370" diameter can be placed inside. The meter is then "zeroed", which means that it will read zero whenever the probe is subsequently placed in zero field. By using a zero gauss chamber, any offset error is therefore eliminated. The model ZGC is unique in that it contains a degausser (demagnetizer). This is situated between the inner and outer mu-metal shields. When the degauss button is pressed, any accidental magnetization of the chamber, no matter how strong, is erased. Accidental magnetization is a major problem with most zero gauss chambers and it has limited their use. If a magnet comes too close, the chamber will become "permanently" magnetized and will have an internal field that is typically 0.2 to 0.5 gauss. The chamber must then be degaussed because the Earth field is also around 0.5 gauss, so a magnetized zero gauss chamber will not significantly reduce the field.

  • Near-Field Detection Module for Imaging

    Reflection - Neaspec GmbH

    Reflective AFM-tip illuminationDetection optimized for high-performance near-field imagingEnables optical amplitude and phase resolved near field measurementsNear-field spectroscopy possible via sequential imaging (Requires tunable illumination unit)Patented background-free detection technologySuited for visible & infrared wavelength range (0.5 20 m)Version for infrared & THz wavelength range (5 300 m) availableSupported AFM scan-speed: up to 20 m/s @ highest spatial resolution

  • Remote Sensing & Proximal Sensing Systems

    SphereOptics GmbH

    Portable or handheld spectrometers (field spectrometers) and hyperspectral cameras (imaging spectrometers) are the ideal tools for spectral data acquisitions and ground truthing of remote sensing imagery. SphereOptics offers you a wide range of spectrometers for the visible (VIS), near infrared (NIR), shortwave infrared (SWIR), and thermal infrared (TIR) wavelength regions. More details about our single point spectrometers for the VIS-NIR-SWIR can be found here, and for TIR here.

  • Shielding Effectiveness/ Conductivity Test

    EM-2107A | 30 MHz – 1.5 GHz - Electro-Metrics Corp.

    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.

  • Near-Field Detection Module for Imaging

    Transmission - Neaspec GmbH

    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

  • Marine Seismic Systems Analysis Software Suite

    Testif-i Marine - Verif-i Ltd

    Testif-i Marine is a comprehensive software suite designed specifically to process test data from marine acquisition systems to ensure the integrity of your recorded data. The software also contains modules for performing tests on recorded streamer data, such as calculating relative streamer channel sensitivity, comparing gun consistency from near field hydrophone data and comparing the spectra of flip-flop source arrays.

  • EMC Accessories

    Rohde & Schwarz GmbH & Co. KG

    Complete your EMC test setup with the essential accessories to compliment the test equipment. Whether it is a LISN (or V-Network) to counteract interference from external power sources on conducted emissions from the device under test, probes to locate the near field sources of radiated emissions, receive and transmit antennas, or tripods for holding antennas in place, the Rohde & Schwarz catalog of EMC accessories provides the additional items you need for EMI and EMS measurements, guaranteed 100% suitable for use with Rohde & Schwarz EMC test equipment.

  • Smart Card Testing Services

    FIME SAS

    Improve product performance with thorough testing services that certify your product against all relevant standards and specifications. FIME is an independent global leader in integration testing services for smart devices and secure chip-based applications and has more than 15 years’ experience of working in the telecom, e-payment, transport, e-identity and logistic sectors. A recognised expert in Near Field Communication (NFC) testing, FIME was the first laboratory to provide contactless smart card testing and to perform accelerated ageing tests to monitor the behaviour of products throughout their lifecycle.

  • Function Tester

    IP-7000 series - WIT Co., Ltd

    In recent years, many companies place importance on vertical start-up at overseas factories and investment costs, but we have realized complete local support not only in Japan but also in China, Thailand, Vietnam, the Philippines and the sites where our bases are located. We have put in place a system that allows us to consistently carry out everything from manufacturing to maintenance near our customers.Our function testers, which can meet customers' requests for function inspections at overseas factories, are active in various fields such as industrial equipment, in-vehicle, IT, and medical industries.

  • 3D Micro Coordinate Measurement Machine and Surface Roughness Measurement Device

    InfiniteFocusSL - Alicona Imaging GmbH

    With the InfiniteFocusSL you are able to measure form and roughness of your components with only one system. In addition, color images with high contrast and depth of focus are achieved. The robust frame and the intelligent illumination technology provide fast and high-resolution measurement in the laboratory and a production near environment. The measurement system is particularly attractive due to its cost effectiveness, measurement speed and usability. The long working distance in combination with the above average measurement field allows a wide range of applications. Measurements are achieved within seconds, and features, such as a coaxial laser for quick and easy focusing, enhance its usability.

  • Microscope Photoluminescence Spectrometer

    Flex One - ZOLIX

    Photoluminescence (PL) is the light emission from a material under the excitation by ultraviolet, visible or near infrared radiation. In semiconductor luminescent property measurements, the sample (e.g. GaN, ZnO, GaAs etc.) was usually excited by a laser (with a wavelength of 325 nm, 532 nm, 785 nm etc.), and its PL spectrum is measured to analyze the optical physical properties, such as the band gap width etc.. Photoluminescence is a high sensitivity, non-destructive analysis method, which can provide the information about the structure, composition and surrounding atomic arrangement of materials. Therefore, it is widely used in physics, materials science, chemistry and molecular biology and other related fields.

  • 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.

  • Antennas

    TE Connectivity Ltd.

    Our broad portfolio of antennas includes products designed for cellular, broadcast, navigation, RFID, IoT, DAS, mmWave, and more. Our antennas are available in standard and custom designs and engineered for use in cars, heavy-transport vehicles including rail, and a wide variety of personal electronics, including mobile device and wearable technology. Our antennas offer high-quality transmission for a wide variety of frequencies including, but not limited to Bluetooth, WLAN, and ZigBee. We manufacture our antennas in facilities worldwide, which include testing capabilities in near and far field patterns, scattering parameters, SAR, vibration, humidity, temperature shock, salt fog, throughput, and acoustic. We also manufacture antenna assemblies.

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