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Noise Sources

create signal disturbances for the purpose of noise instrument calibration.

See Also: Pink Noise, Noise Generators


Showing results: 241 - 255 of 263 items found.

  • LED Power Driver ATS

    8491 - Chroma ATE Inc.

    1. DC Electronic Load : Chroma 6310A/6330A Series2. Transducer Unit/Module*1 : Chroma A849101/A849102, A849103, A8491043. Time/Noise Analyzer : Chroma 80611 & 80611N card4. Sytem Controller*2 : Industrial PC5. DC Source: Chroma 62000P Series6. Digital Power Meter : Chroma 66200 Series7. OVP/Short Circuit Tester : Chroma 806128. ON/OFF Controller : Chroma 80613*1 : A849101 transfers UUT output signal to voltage signal, and measure by 84911 LED power driver measurement card (200kHz). The optional 80611N Noise card is required for 20MHz ripplecurrent measurement.*2 : The controller includes both 84911 LED Power Driver measurement card and 84903 control card.- 84911: Measure rms current, dimming current/frequency/duty, timing, power & ripple current (200kHz)- 84903 : Provide BL control signal(DC level, PWM, SM bus), and enable ON/OFF signal.C Source : Chroma 6500/61500/61600 Series

  • Silicon Detectors

    Edmund Optics Inc.

    Through the photovoltaic effect, detectors provide a means of transforming light energy to an electrical current. The root of the theory behind this phenomenon is a small energy gap between the valence and conduction bands of the detector. When light, with enough energy to excite an electron from the valence to the conduction band, is incident upon the detector, the resulting accumulation of charge leads to a flow of current in an external circuit. Since light is not the only source of energy that can excite an electron, detectors will have some amount of current that is not representative of incident light. For example, fluctuations in thermal energy can easily be mistaken for light intensity changes. A variety of these "non-light" contributions are present and, when summed up, make up the total noise within the detector.

  • Power Supply Testers

    Qmax Test Technologies Pvt. Ltd.

    Power Supply Tester is an integrated package of hardware such as AC/DC Power Sources, DC Loads, Noise Measurement Unit, and DMM etc configured as per user applications, which makes it suitable for testing wide range of Power Supplies and provide economic solution for testing AC/ DC and DC/DC power supplies and converters. The Power Supply Boards that passed in the first level of screening for Go-No Go tests will undergo a second level testing. The second level of testing measures all the key parameters of the power supply such as line regulation, load regulation, efficiency etc and check whether the results are within the mentioned limit, if not declare the UUT (Power Supply Board Under Test) as a failed one.

  • SOA Driver

    S-109 - Notice

    SOA Driver slot module of FOTS system offers a special function that changes the amplification feature of input optical signal variously, by dynamically driving a built-in SOA module. This SOA Driver is an efficient module that can drive a high gain and low noise amplifier stably and modulate a high power amplified signal up to the rate of 155 Mbps. As a high power amplifier, this module drives the maximum amplified power of more than 10 dBm and has a stable broadband source characteristics of > 0 dBm. As a high-speed modulator of amplified signal combined with high current (400 mA) modulation technique, it outputs a high power and high bit rate amplified signal of > 155 Mbps with > 10 dBm peak power.

  • Soldering Station

    SM-898D - MCH Instruments Co.,Ltd.

    *Using micro-processor PID program control technology, precise dual digital display hot air gun and the stability of the actual temperature of the soldering iron, fast automatic temperature compensation feature further enhanced temperatures.*The amount of wind, air flow, temperature soldering iron are adjustable.*The air gun holder is a magnetron (or light control), holding the handle when the system will automatically enter the working mode; handle is placed on the shelf when the system enters standby mode automatically.(One more than the 898D Auto Sleep off function)*System with automatic cold wind function, can prolong the life of the heating element.*This product uses "brushless fan" as a source of air, reduce noise, improve work efficiency

  • Soldering Station

    SM-899D - MCH Instruments Co.,Ltd.

    *Using micro-processor PID program control technology, precise dual digital display hot air gun and the stability of the actual temperature of the soldering iron, fast automatic temperature compensation feature further enhanced temperatures.*The amount of wind, air flow, temperature soldering iron are adjustable.*The air gun holder is a magnetron (or light control), holding the handle when the system will automatically enter the working mode; handle is placed on the shelf when the system enters standby mode automatically.(One more than the 898D Auto Sleep off function)*System with automatic cold wind function, can prolong the life of the heating element.*This product uses "brushless fan" as a source of air, reduce noise, improve work efficiency.

  • Gas Filter Correlation CO Analyzer

    Model T300 - Teledyne Advanced Pollution Instrumentation

    DescriptionFeaturesSpecificationsApplicationsDownloadsMaintenanceThe Model T300 measures low ranges of carbon monoxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high energy IR light source is alternately passed through a CO filled chamber and a chamber with no CO present. The light path then travels through the sample cell, which has a folded path of 14 meters. The energy loss through the sample cell is compared with the span reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing extreme sensitivity.

  • Partial Discharge Expert Diagnostic and Location System

    PDExpert - Power Monitoring and Diagnostic Technology Ltd.

    The PDExpert is PMDT's third level of Partial Discharge (PD) Expert Diagnostic and Location System. It is a powerful, portable, multi-channel system of impeccable design used to analyze and pinpoint PD signals coming from a power asset within centimeters while the power system is energized. The system consists of UHF, AE, HFCT and ultrasonic sensors, one advanced UHF/PD signal processing unit, one oscilloscope, filters and other accessories.The system employs ultra-high speed data acquisition and advanced digital signal processing technologies, compares the UHF, AE and HFCT signals of different frequency ranges to determine if it is PD or noise, and locates the source in power assets accurately by utilizing Acoustic-Electromagnetic Combination Location Technique, time Difference of Signals' Arrivals (TDOA), and 3D Positioning Technology.

  • Trace-Level UV Fluorescence SO2 Analyzer

    Model T100U - Teledyne Advanced Pollution Instrumentation

    The Model T100U Trace-level SO2 analyzer has been developed specifically to address the challenges of low level monitoring as required, for example, in the US NCore network. It uses the proven UV fluorescence principle, and is designed to allow ultra-sensitive SO2 measurements while still meeting the requirements for use as a US EPA compliance analyzer.The analyzer uses both the light and dark phases of the pulsed UV light source to continuously detect and correct for electronic noise, giving exceptionally stable and sensitive performance. A separate UV detector allows the instrument to continuously correct for variations in lamp intensity. Exceptional stability is achieved with the use of an optical shutter to compensate for PMT drift, and a reference detector to correct for changes in UV lamp intensity. A hydrocarbon "kicker" and advanced optical design combine to prevent inaccuracies due to interferents.

  • 32-CH/64-CH Isolated Digital I/O PCI Express Card With Digital Filter

    AX92351 - Axiomtek Co., Ltd.

    The AX92351 is a 64-ch isolated digital I/O PCI Express card with 2,000VDC isolation protection. This high-density digital I/O card with high-speed PCI Express x1 bus is excellent for use in applications requiring digital control or monitoring, such as semiconductor machinery, PC-based industrial machinery, programmable I/O logic control, and process status monitoring. The AX92351 features 32 isolated digital input channels and 32 isolated digital output channels with isolation protection of 2,000V for industrial applications where high-voltage isolation is required. It is equipped with a board ID feature for easy identification of multiple cards in single system. There is a digital filter function to prevent input signals from carrying noise or a chattering. Each isolated input has a sink or source current which supports dry and wet contact for maximum application flexibility. The card has a wide range of input voltage from 10 to 30V to meet most industrial application needs. The AX92351 also provides two interrupt sources on digital input channels. Digital output has open controller and supports maximum 30VDC. The read-back function is another useful function that allows monitoring each output port.

  • Programmable DC Power Supply

    62000L Series - Chroma ATE Inc.

    The Chroma 62000L Series Programmable DC power supplies have low noise linear performance and fast transient response. The units have many unique functions that are targeted for overall automated test system integration, automotive power electronics MCU/ECU, power semiconductors, wireless communications, etc. The 62000L Series is a high quality yet cost effective programmable DC Source, designed to meet the stringent requirements of the next generation of power electronics. The GPIB and USB control interfaces come standard with the 62000L Series, no additional purchase required. The 62000L Series can be easily remote controlled via either of these two interfaces. The 62000L weighs less than 2.5 kg, and its case measures 214.6W * 88.6H * 280D mm. Its light weight and compact size makes it easy to handle and stack safely.。

  • Fourier Transform Optical Spectrum Analyzer, 600 - 1700 nm

    OSA202C - Thorlabs, Inc.

    Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.

  • Fourier Transform Optical Spectrum Analyzer, 350 - 1100 nm

    OSA201C - Thorlabs, Inc.

    Thorlabs' Optical Spectrum Analyzers (OSAs) perform highly accurate spectral measurements. Compatible with fiber-coupled and free-space light sources, these compact benchtop instruments suit a wide variety of applications, such as analyzing the spectrum of a telecom signal, resolving the Fabry-Perot modes of a gain chip, and identifying gas absorption lines. Many commonly available OSAs use grating-based monochromators, which have slow acquisition times due to the need to mechanically scan the grating and average out noise at each wavelength. Thorlabs' OSAs acquire the spectrum via a Fourier transform using a scanning Michelson interferometer in a push/pull configuration. This approach dramatically improves the acquisition time, enables a high-precision wavelength meter mode with 7 significant figures and ±1 part-per-million accuracy, and allows the included software to provide robust statistical analysis of the acquired spectra, as explained in the Design tab.

  • Mid-Range Gas Filter Correlation CO2 Analyzer

    Model T360M - Teledyne Advanced Pollution Instrumentation

    The Model T360M CO2 analyzer measures Carbon Dioxide by comparing infrared energy absorbed by a sample to that absorbed by a reference gas according to the Beer-Lambert law. Using a Gas Filter Correlation Wheel, a high-energy IR light source is alternately passed through a CO2 filled chamber and a chamber with no CO2 present. The light path then travels through the sample cell, which has a folded path of 1.28 meters.The energy loss through the sample cell is compared with the reference signal provided by the filter wheel to produce a signal proportional to concentration, with little effect from interfering gases within the sample. This design produces excellent zero and span stability and high signal to noise ratio, allowing excellent performance over a wide concentration range, making this instrument an ideal choice for CO2 reporting requirements associated with dilution CEMS.

  • Microwave Wideband Externally Modulated Transmitters (without RF Amp)

    MT80 (30KHz~40GHz) - Hangzhou Huatai Optic Tech. Co., Ltd.

    MT80 series microwave optical transmitter, adopts external modulation technique, are able to transmit 40GHz microwave RF signal with long distance, wide bandwidth, and flat responsibility. They provide an outstanding linearity fiber optical communication for analogue and digital wideband microwave application. Due to avoidance of using expensive coaxial cable or wave guide, there will be no limitation in transmission distance, which improves the signal quality and reliability of the microwave communication. They can be widely applied in microwave communication system such as remote wireless; timing and reference signal distribution, telemetry, measurement and delay line etc as well as 10Gb/s and 40Gb/s high speed communication system. MT80 adopts low noise, narrow linewidth CW DFB laser as light source; LiNbO3 external modulator as signal modulation, no laser chirp, low dispersion distortion, high extinction ratio, Full-transparency operation mode. It can be applied in long distance and extra-long distance transmission after EDFA.

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