Hydrogen Frequency Standards
Microwave Amplification by Stimulated Emission of Radiation
See Also: Frequency Standards, Rubidium Standards, Hydrogen Masers
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Frequency Converters
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CAES offers a full range of custom frequency converter solutions including narrowband, wideband and block upconverters and downconverters.
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Frequency Response Analyzers
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Frequency Response Analysis (also referred to as Transfer Function Analysis) measures the output spectrum of a system relative to a stimulus, and is used to characterize the dynamics of the system under test. The technique measures the magnitude and phase relationship between output and input waveforms as a function of frequency. The input signals may be from a wide range of sensors including acoustic (microphones/sonar), mechanical (accelerometers/displacement transducers), optical (photodetectors), and electrical (amplifiers).
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Frequency Up Converters
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Are integrated assemblies that convert low frequency RF signals to higher frequency RF signals.
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Standard CT
3200A
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• High accuracy of 3200/5A (0.005%) • multiple ratios • Various Current ratings
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Standard Type
FD-10
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This device supports the measurement of rivers, Agricultural water, Sewage systems, Other channels and facilities.
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Time Frequency Analysis Function
OS-0527
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This function can evaluate transient phenomena that were difficult to capture by FFT analysis, and display clearly time change of the frequency component while maintaining its frequency resolution . The OS-0527 is equipped with STFT (Short Time Fourier Transform) and Wavelet transform.
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Ferrite Low Frequency Transducers
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Ceramic magnetic design able to provide high-power handling and low distortion for the most demanding speaker manufacturers.
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Reflectance Standards
STAN Series
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Ocean Optics offers specular reflectance standards for measuring shiny surfaces such as machined metals and semiconductor materials and low-reflectivity surfaces such as anti-reflective coatings and thin film coatings. The STAN-SSH varies in reflectivity from 87%-98% over the 200-2500 nm wavelength range and is available in a version (STAN-SSH-NIST) calibrated to a NIST master standard. The NIST calibration data range is 250-2500 nm.
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Frequency Multipliers
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A series of broadband frequency multipliers is available with output frequencies between 18 and 110 GHz. The use of GaAs diodes on a suspended substrate circuit allows an extremely compact device. Circuit symmetry is used to enhance either even or odd harmonics while suppressing unwanted odd or even harmonics. These devices can be used as higher order even or odd harmonic multipliers with reduced efficiency. All of these multipliers have maximum input power +23 dBm for temperature less than +50°C.
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Frequency Counter (225MHz - 18GHz)
S43180
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S43180 series high-precision frequency counter is a high-precision frequency measurement instrument. It has a frequency measurement resolution of 10 bits per second. The whole machine scheme adopts countdown technology and digital interpolation technology to realize the high-precision measurement of the instrument. It has measurement functions such as frequency, period, frequency ratio and powerful mathematical statistics operations (maximum value, minimum value, average value, PPM, standard deviation, Allan variance).S43180 series has reliable performance, complete functions, high measurement accuracy, wide frequency measurement range, high sensitivity, large dynamic range, high cost performance and easy to use. It is especially suitable for frequency measurement in scientific research and measurement fields such as aerospace, crystal oscillators, and components.
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Oxygen/Nitrogen/Hydrogen Analyzer
EMGA-930
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This is a simultaneous oxygen, nitrogen & hydrogen elemental analyzer with high accuracy and repeatability suiting to cutting-edge technology's R&D as well as quality control in the market of steel, new materials, catalyst and so on. This is a new generation model optimized to fit to user's requests.The oxygen is measured as carbon monoxide and carbon dioxide by two non-dispersive infrared detectors, the nitrogen by a thermal conductivity detector and the hydrogen with non dispersive Infra Red detector as H2O.
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Frequency Calibrator
VCH-313
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The frequency calibrator VCH-313 is designed to determine the frequency error and calibrate frequency standards of various types based on the signals of the NSC SNS GLONASS/GPS .
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High Frequency Transformers
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Osborne High Frequency Current Transformers operate at frequencies higher than 50/60 Hertz. Their purpose is to reduce high frequency system currents to lower values that are appropriate for instrumentation and/or protection circuits. They have been designed to meet specified current ratios, and burden impedance at a specified transformation error. One area of unique Osborne expertise is in designing for phase shift when high frequency current transformers are to be used for power measuring applications.
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Frequency Demultiplexer
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Becker Nachrichtentechnik GmbH
Modern receivers for broadcast have a large number of antenna inputs for the different radio bands. The devices of the FDMX series can be used to supply the antenna inputs with RF signals. The devices of the FDMX series splits a sum signal in frequency division multiplex into the individual broadcast bands and the L1 satellite navigation band (GNSS). Additionally, DC loads are provided for each antenna input to simulate active antennas. The presence of remote power supply is indicated by an LED on the units.
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High Frequency Current Transformer
HFCT Ø 140mm
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Techimp Clamp High Frequency Current Transformer model 140 is an inductive sensor for partial discharge measurements. It is suitable for online /off line PD tests on : large diameter cables ; grounding rod bar ; etc. A TNC termination is available to connect the Clamp HFCT 140 to the TechImp PD analyzer : PDCheck , PDBase etc. The arrow indicates the requested input current (Iin) direction to get coherent output voltage (Vout) polarity respect to ground. When the sensor is installed with the arrow directed to ground, the detected voltage signal (Vout) has the same phase of the input current (Iin).
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Frequency Sources
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PMI offers a full line of Digitally Controlled Oscillators (DTOs), Dielectric Resonator Oscillators (DROs), Voltage Controlled Oscillators (VCOs) and Frequency Synthesizers covering various frequencies in the 50 MHz to 40 GHz range. All models are designed to withstand stringent military ground or airborne environments. These models use the latest internal digital calibration techniques such that frequency drift over the operating temperature range is minimal. All units offer fast switching speeds and stable frequency outputs with low phase noise. If you do not see exactly what you need, please e-mail your requirement to sales@pmi-rf.com so we can propose an instant solution.
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Frequency Counter with Rubidium Timebase
SR625
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Stanford Research Systems, Inc.
The SR625 Frequency Counter is a NIST traceable frequency counting standard for calibarating base stations, transmitters and many other types of communication systems.
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Fixed Area Hydrogen Monitor
HY-ALERTA™ 600B
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H2scan’s HY-ALERTA™ 600B Fixed Area Hydrogen Monitor will provide hydrogen-specific leak detection and measurement for hydrogen concentrations as low as 4000 ppm and can be scaled to any concentration up to 5% hydrogen by volume, a range representing 10% to 125% of hydrogen’s low flammability limit. They are designed for either ceiling or wall mount and have RS422 capability that extends the interface from the sensor to the controller to several hundred feet. H2scan’s hydrogen-specific sensor technology has no cross sensitivity to any other combustible gases, thus eliminating false positive alarms and increasing system reliability.
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High Frequency Insulation Tester
HFIT 8.0
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The MEDTEQ HFIT 8.0 is intended for high frequency insulation testing against IEC 60601-2-2. This version includes in-built metering and automatic functions to make testing easy not only for design and laboratory testing, but also suitable for regular production testing.
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VME Time & Frequency Processor
VME635091-SyncClock
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Brandywine Communications’ VME635091-SYNCCLOCK is a time and frequency processor module that provides precision time and frequency reference to the host computer and peripheral data acquisition systems. Time is acquired from time code signals, typically IRIG B. Time is displayed on the front panel (hours, minutes, seconds) via LED digits.
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Erbium Fiber Frequency Comb
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Detailed description of item: The AOSense frequency comb is a low noise, polarization maintaining (PM) device. Key features include a PM fiber architecture centered at 1550nm with turnkey modelocking; a free-running linewidth of the carrier-envelope offset frequency of <200 kHz; a temperature-insensitive all-fiber f-2f interferometer exhibiting fceo beatnotes with SNR > 45dB (300kHz RBW); and dual fast/slow cavity length actuators with a bandwidth of >300 kHz. The repetition rate of the comb is factory set and allows matching across multiple combs for dual comb applications. The optics package incorporates an optical heterodyne module designed for locking to the comb to an ITU-specified laser reference. The comb is capable of supporting an Allan deviation of < 5 x 10-18 at 1 second and ~10-20 after 105 seconds. Add-on features include all fiber extensions to visible wavelengths corresponding to several atomic transitions. An integrated comb electronics package is currently under development.
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Standard Normally Open
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Is an optically coupled element that combines a GaAs infrared LED on the input side with anormally-open MOS FET on the output side to realize an excellent cost performance.The small, thin package and high sensitivity of this element makes it ideal for battery-driven mobile devices, and its small offset voltage at power-on and good linearity are also make it suitable for controlling micro analog signals.
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RF/High Frequency Probes
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Everbeing is proud to distribute GGB Industries line of PicoProbes for customers everyday RF probing needs. The popular model 40A has been serving the needs of many high frequency researchers in the sub-40 GHz range. For more information on their products, visit www.ggb.com. If a product they sell is not shown here, we are still able to acquire for you. Please contact us for more details.
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Capacitance Standard Frame
AH 1100
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The AH 1100 capacitance standard frame containing from one to four AH 11A fused-silica capacitance standards provides reference capacitors of unexcelled stability. The inherent stability of this system when subjected to mechanical or thermal shock makes it the ideal transfer standard for capacitance. The built-in precision temperature controllers make it a simple, reliable system to use.
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1.3GHz Frequency Counter
Model 1122 / 1122X
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- Wide Frequency Range 0.2Hz to 1.3GHz- 2 Separate Channels, for LOW & HIGH Frequencies- High Sensitivity- 8 Digit Green LED Display- Microcontroller based Advance Technology- Optional RS232 Interface- Reciprocal Counting Technique for High Resolution at Low Frequency- Period Measurement- Low Pass Filter for Noisy Low Frequency (<100KHz)- 4 Selectable Gates (10ms, 100ms, 1sec, 10sec)
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Frequency Counters
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Combines a calibrated RMS RF Power Meter, a wide-band frequency counter, and a RF Signal Generator into one miniature USB device. Incredibly useful in production verification environments and other automated test setups.
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NF-Series Standard Models
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The E-DRIV® NF-Series standard models feature an adjustable RPM setting on the tool and a selectable Soft Start mode. Engineered for high volume manufacturing applications the brushless motor design ensures durability and reduces the standard maintenance costs associated with brush type electric screwdrivers. The NF power tool is ESD certified, ensuring less than 1 Ohm at the bit tip. ESD management assures product quality, cost savings and a reduction in overall ESD failures.
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Trace Hydrogen Analyzer
GNL-400
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Shanghai ChangAi Electronic Science & Technology Co.,Ltd
GNL-400 trace hydrogen analyzer adopts imported high-performance electrochemical sensor with latest micro computer technology. It has such functions of LCD display, upper & lower alarm, signal output and relay contactor alarm output. And can be used to measure the hydrogen concentration in nitrogen, oxygen and argon.
