Showing results: 151 - 165 of 329 items found.
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Synchronous Accumulation (Order Analysis) -
ZETLAB Company
Order analysis is one of the most convenient and efficient methods for diagnostics and balancing of rotating mechanisms and transmission gears. With an RPM sensor and a vibration sensor, it is possible to study the time characteristics of gear vibration signals. It is a well-known fact that a signal from a vibration sensor is affected by signals from other sources. To tune out from the disturbing signals, the synchronous signal accumulation method is used. For each shaft rotation, the RPM sensor provides a rotation mark. This signal serves as a triggering strobe for the vibration sensor signal sweeping. The obtained signal sweeps are combined. All the sources of the signals related to the shaft frequency (frequency of rotation) are accumulated and increased in the accumulator linearly proportionally to the N number of rotations. All other signals that are not correlated with the shaft frequency are accumulated proportionally to N1/2 and in case of a greater number of averagings, the useful signal exceeds the interference level.
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Becker Nachrichtentechnik GmbH
In large scale RF signal distribution systems such as broadcast signal distributions, several signals of radio bands have to be transmitted over longer cable distances. Due to the different frequency ranges, the signals can be transmitted via one common coaxial cable. This saves costs for the coaxial cables and their installation. With help of signal combiners, multiple signal sources can be combined broadband or frequency selective to a sum signal with low loss in level.
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Thorlabs, Inc.
Thorlabs' LLD1530 Frequency-Locked Laser is a narrow linewidth, DFB-laser-diode-based, turnkey system with a vacuum emission wavelength of 1532.8323 nm and a high SMSR of at least 35 dB. The laser frequency is actively stabilized to a National Institute of Standards and Technology (NIST)-traceable molecular transition of acetylene and has an absolute accuracy at start-up that is better than ±25 MHz. The emission frequency immediately after start-up is then maintained with a ±25 MHz stability, providing an overall frequency accuracy of ±50 MHz. The LLD1530 is an accurate frequency reference designed to provide low-noise laser emission with excellent frequency stability, accuracy, and precision immediately at start-up. This source is ideal for use in demanding FTIR instrumentation, instrument calibration, gas sensing, and coherent telecommunications applications.
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FES -
Farran Technology Ltd
These frequency extension modules easily connect to the output of your signal generator so you have high-performance source for your DUT characterization activities. Characterize your DUT with the confidence that the superior performance in terms of output power, spurious and harmonic will provide product accurate results.
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6400 -
Chroma Systems Solutions, Inc.
The Chroma 6400 series Programmable AC Power Source uses state of the art PWM technology to deliver pure, instrument grade AC power at a very low cost never achieved before. The 6400 AC power source offers maximum rated power for any output voltage from 0 to 300VAC, at any frequency from 45 to 1K Hz. It is not only suitable for commercial applications (47-63Hz), but also for avionics, marine, military applications at 400Hz.
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BL+ Series -
Behlman Electronics Inc.
Behlman's BL-PLUS Series High Power AC Source/ Frequency Converter provide the performance of a linear with all the benefits of a switching amplifier. Instead of relying on large, noisy motor generators for AC power, today's testing facilities are switching to quiet, compact Behlman AC Power frequency converters.
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FT Series -
Farran Technology Ltd
Farran Technology manufactures a series of standard frequency multipliers which are available in fixed or tunable versions. GaAs Schottky barrier varactors are used to achieve the highest efficiency. The multipliers can be used with solid state or vacuum tube sources. A rugged compact mechanical design is used to maximise reliability.
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Quartzlock (UK) Ltd.
A self-contained phase/frequency analyser. Its area of use includes measurement of frequency stability and spectral purity of signal sources from 3MHz to 919MHz. Stability of amplifiers, cables, or other passive devices can be measured. Allen Variance (AV) and Power Spectral Density (PSD) graphs are automatically generated.
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VCH-607 -
VREMYA-CH JS Company
FOCL reference signal modem VCH-607 is designed to receive and transmit electrical signals with a nominal frequency of 100 MHz through a fiber-optic system and generate electrical signals with a nominal frequency of 5 and 10 MHz, coherent with the input signal. Reception and transmission through the FOCL is provided using a pair of modems: one is configured as a Transmitter and is installed at the end of the FOCL where the signal source is located, the second is configured as a Receiver and is installed at the opposite end of the FOCL.
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ESE
The ES-110 generates a stable source of 10 MHz using GPS (Global Positioning System) satellites as a reference. If frequency distribution is needed, we offer the ES-210, a Quad 1x6 1/5/10 MHz Distribution Amplifier. The ES-210 provides four independent 1x6 Frequency DAs in a single rack-mount enclosure. The ES-410 is a four output version of the ES-110. The ES-410 was introduced and won Radio Magazine's Best of Show Award at the 2016 NAB Show.
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Qref -
QSources BVBA
Precision omni-directionallity in all directions, horizontal and vertical plane. This source has a frequency range of application between 100 and 8000 Hz (third octave bands) Despite only weighing 1.4 kg and having a diameter of 105 mm, it produces a maximum sound power level of Lw 104 dB.
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CRS+ -
Laplace Instruments Ltd.
The CRS+ is a stable and calibrated source of signals which cover the 9KHz - 30MHz frequency range. The fundamental signal is a 15KHz comb and each harmonic is output as a narrowband peak of known amplitude. This signal is output on either the L and N lines, referenced to ground. A switch provides on/off and line selection.
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Is-Instruments
As with Raman spectrometers, a Raman probe is used to measure the inelastic scattering of light from a sample. Raman scattering is produced when the energy levels of photons are shifted up or down as a result of excitation by a monochromatic source (usually a laser). The change in vibrational frequency is used to determine the composition of a target substance.
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MK224PH -
ACO Pacific, Inc.
The MK224PH Type 1 phantom powered measurement microphone system offers a cost effective solution to acoustic measurements from phantom powered sources. Frequency Response: +/-2dB (8 Hz to 18kHz). Sensitivity: 50 mV/Pa (-26 dBV/Pa)typ. Dynamic Range 3% THD: 14dBA-145dB.
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Cambridge Instruments & Engineering Co.
suitable to perform AC High Voltage Power Frequency test on transformers, motors, cables etc. Leakage current can be measured at desired pressure and this set can be used as a source for cable fault burning.