Showing results: 436 - 439 of 439 items found.
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Maury Microwave Corporation
Maury manual tuners are based on precision slide screw technology that utilizes broadband slab line transmission structure and passive probes to create impedances for devices. The probes are designed to be very close to onequarter wavelength in the linear dimension at the mid-band of each range. Since each tuner has two probes, this results in improved matching characteristics for each unit. Another key feature of this series of tuners is the inclusion of a LCD position readout of the carriage position on those units operating below 18 GHz. Higher frequency tuners utilize a micrometer carriage drive. The positional repeatability and high matching range of these tuners make them ideally suited for use as a variable impedance source in applications like device characterization. Such measurements depend upon the ability of the tuner to establish impedances out near the edge of the Smith chart and to reproduce the electrical characteristics as a function of mechanical position. The tuners in this series are also easy to use due to the nearly independent electrical results of the mechanical motions. The depth of penetration of the probe into the transmission line determines the magnitude of the reflection, while the position of the probe along the line determines the phase. While there is some interaction, the effects are almost independent of each other. https://www.maurymw.com/images/mw-rf/mst982e35.jpg
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EL Imaging Tester -
OAI
EL Testing for Si Solar Cells using High Performance CCD. The determination of luminescence (photo emissions) in solar cells is an important characterization tool. Typical solar cells often have defects which limit the efficiency or lifetime of a cell. Many of these defects are visualized with Luminescence Imaging. By using this technique, the manufacturing process can be optimized to produce better cells. Luminescence Imaging takes advantage of the radiative inter-band recombination of excited charge carriers in solar cells. The emitted photons can be captured with a sensitive CCD camera to obtain an image of the distribution of the radiative recombination in the cell. This distribution is determined by the local excitation level, allowing the detection of electrical losses, thus mapping the diffusion length of minority carriers as the emitted light is low intensity and in the near infra-red range, the CCD camera has a high sensitivity wavelength from 900 to 1100 nm with little thermal noise. This CCD camera provides excellent resolution of 1024 x 1024 pixels with a large 1μm pixel size, multi-megahertz readout speed, and robust USB 2.0 connectivity. The EL CCD Camera is the ultimate high-performance CCD camera for electroluminescence and photoluminescence imaging for Photovoltaic (PV) Cells and Modules. This camera combines low noise electronics and optimal sensitivity in NIR.
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G-MIX 5CH -
BioAge s.r.l.
G-MIX is an integrated versatile system that can be easily employed to set up countless gaseous mixtures, the gaseous flows are accurately controlled by five MFC (Mass Flow Controller), every MFC has stored inside its memory the calibration tables for 10 different gases. All the hydraulic system has been realized by means of Stainless Steel AISI316 pipes, connectors and valves, this is the best available solution for this kind of applications. The stoichiometric composition of the gaseous mixture can be easily controlled by means of a software, running under Windows, with an intuitive and friendly user interface, the software can be easily installed on a common PC and the communication with G-MIX is possible by means of an USB port. G-MIX can be used as a stand-alone system too, without connecting it to a PC, because every MFC is supplied with a graphic LCD display and with a little user keypad that can be used to set up the gas flow value. The G-MIX system can be used to create gaseous mixtures with a well controlled and known chemical composition, these mixtures can be used in the laboratory to perform countless experiments such the test and/or the calibration of sensors and/or transducers or the characterization of chemical films. The GMIX system is extremely compact and completely enclosed in a hard and smart enclosure of satin aluminum, the interior of the enclosure is brightened by high intensity LED diodes, and it is visible thanks to a clear polycarbonate front panel. The excellent materials used to realize G-MIX allow the use of corrosive and/or toxic gases, providing a reliable and very hard system.
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6500 series -
Chroma ATE Inc.
The global AC power testing requirements demand more sophisticated AC Power Source that is capable of simulating a wide variety of AC line conditions, harmonic waveforms, accurate power measurement and analysis. The Chroma 6500 series Programmable AC Power Source delivers the right solution to simulate all kinds of normal/abnormal input conditions and measure the critical characteristics of the product under test. It can be used for R&D design characterization, production testing, and QA verification of commercial, industrial, and aerospace electronic products. The Chroma 6500 series delivers maximum rated power for any output voltage up to 300 Vac, and at any frequency between 15Hz to 2000Hz. It is suitable for commercial applications (47-63Hz); for avionics,marine, military applications at 400Hz or higher frequency; or for electrical motor, air-conditioner test applications at 20Hz. All models generate very clean sine or square waveforms output with typical distortion less than 0.5%. The Chroma 6500 series has built-in Direct Digital Synthesis (DDS) Waveform Generator to provide user programmable high precision waveform. For testing products under AC line distortion conditions, clipped sinewave can be generated with 0% to 43% distortion and amplitude from 0% to 100%. It also can simulate all kinds of power line disturbances such as cycle dropout, transient spike, brown out, phase angle, voltage and frequency ramp up (ramp down), etc.. Up to 30 harmonic waveforms are factory installed, and testing for compliance to AC line harmonic immunity standards can be easily achieved in the field.
