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Noise

a signal's fluctuation other than that desired.

See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH


Showing results: 1996 - 2010 of 2094 items found.

  • Multiphase Power Analyzer

    2800 Series - Valhalla Scientific Inc.

    The Valhalla Scientific 2800 High-Precision Power Analyzer is available in 1-, 2-, 3-, 4-, 5-, or 6-phase versions.  All voltage inputs 0.3V up to 1500V peak and all current inputs 1.5mA up to 1A; 15mA up to 5A; 1A up to 40A; and shunt inputs 60mV up to 6V are potentially free and exhibit low noise, high common mode suppression, excellent DC-stability, wide frequency range (DC-2MHz) and very low self-heating on current inputs.There is no need to fiddle with DC-compensation, or changing current plugging.  All is built into the input sections of the power analyzer, ready for measurements.  It is simple to use, your intuition will guide you to operate the Power Analyzer touch screen correctly.

  • sbRIO-9237, Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module

    781028-01 - NI

    Non-Enclosed, 50 kS/s/channel, Bridge Analog Input, 4-Channel C Series Strain/Bridge Input Module - The sbRIO‑9237 includes all the signal conditioning required to power and measure up to four bridge-based sensors simultaneously. The module provides strain or load measurements with zero interchannel phase delay. It also has 60 VDC isolation and 1,000 Vrms transient isolation, providing high‑common‑mode noise rejection and increased safety. You can program the sbRIO‑9237 for use with half-bridge and full-bridge sensors with built-in excitation. The four RJ50 jacks provide direct connectivity to most torque or load cells and offer custom cable solutions with minimal tools. Non-enclosed modules are designed for OEM applications.

  • USB-8452, 3.3 MHz I2C, 50 MHz SPI I2C/SPI Interface Device

    781964-02 - NI

    The NI USB‑8452 is a master interface for connecting to and communicating with inter-integrated circuit (I2C) and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8452 is a bus-powered, portable solution to communicate with consumer electronics and integrated circuits. It also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices, toggling LEDs, or strobing convert and data ready lines common to analog converter chips. You can physically place the USB‑8452 more closely than PCI interfaces to I2C/SPI devices, which reduces I2C bus length and minimizes noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.

  • USB-8452, 3.3 MHz I2C, 50 MHz SPI I2C/SPI Interface Device

    781964-03 - NI

    The NI USB‑8452 is a master interface for connecting to and communicating with inter-integrated circuit (I2C) and serial peripheral interface (SPI) devices. With plug‑and‑play USB connectivity, the USB‑8452 is a bus-powered, portable solution to communicate with consumer electronics and integrated circuits. It also includes eight general-purpose digital I/O lines for a variety of applications, such as configuring the address of I2C devices, toggling LEDs, or strobing convert and data ready lines common to analog converter chips. You can physically place the USB‑8452 more closely than PCI interfaces to I2C/SPI devices, which reduces I2C bus length and minimizes noise problems. Additionally, the interface provides +5 V and GND to power circuits with no external power supply.

  • PXIe-4499, 204.8 kS/s, 114 dB, 4 Gains, AC/DC-Coupled, 16-Input PXI Sound and Vibration Module

    781370-01 - NI

    204.8 kS/s, 114 dB, 4 Gains, AC/DC-Coupled, 16-Input PXI Sound and Vibration Module - The PXIe‑4499 is designed for high‑channel‑count sound and vibration applications. With 24-bit analog inputs and IEPE constant current signal conditioning, the PXIe‑4499 is ideal for making precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The PXIe‑4499 delivers simultaneous sample on all channels. In addition, the PXIe‑4499 includes built-in antialiasing filters that automatically adjust to your sample rate, software-selectable input gains, and TEDS smart sensor support for error-free setup. Common applications include noise, vibration, and harshness (NVH) analysis; large microphone arrays; and dynamic structural test.

  • PXIe-4497, 204.8 kS/s, 114 dB, 2 Gains, AC/DC-Coupled, 16-Analog Input PXI Sound and Vibration Module

    781369-01 - NI

    204.8 kS/s, 114 dB, 2 Gains, AC/DC-Coupled, 16-Analog Input PXI Sound and Vibration Module - The PXIe‑4497 is designed for high‑channel‑count sound and vibration applications. With 24-bit analog inputs and IEPE constant current signal conditioning, the PXIe‑4497 is ideal for making precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. The PXIe‑4497 delivers simultaneous sample on all channels. In addition, the module includes built-in antialiasing filters that automatically adjust to your sample rate, software-selectable input gain, and TEDS smart sensor support for error-free setup. Common applications include noise, vibration, and harshness (NVH) analysis; large microphone arrays; and dynamic structural test.

  • Handheld Digital Spectrum Analyzer,

    Seeed Technology Inc.

    Frequency band: 240 - 960 MHz and 2.35 – 2.55 GHzFrequency span: 112KHz - 100MHzGraphics LCD 128x64 pixels, great visibility outdoorsPC Windows client supports Windows XP/Vista/Win7 both 32 and 64bitsBacklight for great indoor visibility2 standard SMA 50 ohms connector, one for Sub-GHz wideband Nagoya NA-773 telescopic antenna included and another one for 2.4GHz band with helical antenna included.Amplitude resolution: 0.5dBmDynamic range: -115dBm to 0dBmAbsolute Max input power: +5dBmAverage noise level (typical): -110dBm2.4GHz RF Generator amplitude: -30dBm to +1dBmFrequency stability and accuracy (typical): +-10ppmAmplitude stability and accuracy (typical): +-3dBmFrequency resolution: 1KhzResolution bandwidth (RBW): automatic 2.6Khz to 600KhzWeight: 185gSize: 113x70x25 mm

  • Class 2 Sound Level Meter

    SP79 - Martindale Electric Co. Ltd

    The SP79 is a Class 2 sound level meter for on-site measurements in accordance with Noise at Work legislation in industrial and office environments. Featuring A and C frequency weighting and fast and slow time weighting, the compact design can be handheld, or mounted on a tripod for longer term monitoring of Min / Max values. Detailed recording and analysis can be made using the AC and DC outputs. The SP79 complies with BS EN 61672-1:2003 and is supplied with a detachable windshield and hard carry case. The large high contrast display includes both digital reading and analogue bar graph. An optional Class 2 sound level calibrator is available to verify accuracy before and after readings in accordance with international standards. The SPC70 is simple to use and provides a 1kHz reference at 94dB and 114dB.

  • Network Analyzer

    DPNA-6G AXIe - Holding Informtest

    The AXI DPNA-6G module is the world's first network analyzer in the form factor of the AXIe-1 module, as well as the first Russian device that meets the AXIe-1 standard. In the mode of the network parameters meter, the AXI DPNA-6G module measures the vector values ​​of the network parameters on two ports: transmission coefficients (S12, S21) and reflection (S11, S22). At the same time, all necessary types of calibrations are supported: one- and two-port short-circuit, XX, matched load, transmission normalization. The software supports the import of third party calibration standard parameters. In the measuring receiver mode, the module provides:*generation of a harmonic signal (frequency synthesizer);*spectrum analyzer and power level in a given band;*measuring the frequency of a known signal;*measurement of analog modulation parameters;*phase noise measurement.

  • High Performance Smart Spectrometer

    Exemplar Plus - B&W Tek, Inc.

    The Exemplar® Plus is a high performance smart spectrometer utilizing a low stray light unfolded Czerny-Turner spectrograph. It features a highly sensitive TE Cooled back-thinned (BT) CCD detector which is linearly summed for high dynamic range. Its long focal length, coupled with a high quantum efficiency detector, provides superior data quality over the entire 190-1100nm spectral range. The Exemplar Plus features a high signal to noise ratio, making it ideal for low light level applications, and also features a built-in shutter allowing for dark scan measurements, even while illuminated. As a member of the Exemplar product line, it features on board data processing and USB 3.0 communication. The Exemplar product line is also optimized for multi-channel operation featuring ultra-low trigger delay and gate jitter.

  • Multifunction I/O

    PXI-2005 - ADLINK Technology Inc.

    ADLINIK PXI-2010, PXI-2005 and PXI-2006 are simultaneous-sampling multifunction PXI modules to meet a wide range of application requirements. These products can simultaneously sample 4 AI channels with differential input configurations to achieve maximum noise elimination. They also provide 2-CH 12-bit analog outputs with waveform generation capabilities, which can be performed together with analog input functions. If more analog input or output channels are required, multiple modules can be synchronized through the PXI trigger bus. This makes the PXI-2000 series ideal for stimulus/response tests. The PXI-2000 series also feature analog and digital triggering, 24-CH programmable digital I/O lines, and 2- CH 16-bit general-purpose timer/counters. The auto-calibration feature adjusts the gain and offset to a specified accuracy, eliminating the need to calibrate the modules by adjusting trimpots.

  • Multifunction I/O

    PXI-2010 - ADLINK Technology Inc.

    ADLINIK PXI-2010, PXI-2005 and PXI-2006 are simultaneous-sampling multifunction PXI modules to meet a wide range of application requirements. These products can simultaneously sample 4 AI channels with differential input configurations to achieve maximum noise elimination. They also provide 2-CH 12-bit analog outputs with waveform generation capabilities, which can be performed together with analog input functions. If more analog input or output channels are required, multiple modules can be synchronized through the PXI trigger bus. This makes the PXI-2000 series ideal for stimulus/response tests. The PXI-2000 series also feature analog and digital triggering, 24-CH programmable digital I/O lines, and 2- CH 16-bit general-purpose timer/counters. The auto-calibration feature adjusts the gain and offset to a specified accuracy, eliminating the need to calibrate the modules by adjusting trimpots.

  • Active Loop Antenna

    AL-130R - Com-Power Corporation

    Also known as Magnetic Loop Antenna, the AL-130R is compliant with CISPR 16-1-4. It is ideal for emissions measurements as required by various EMC standards such as FCC 18, CISPR 11, CISPR 13, CISPR 14, CISPR 32 and many more. The built-in, low-noise preamplifier, increases overall measurement sensitivity as well as the overall signal to noise ratio. As per ANSI C63.4-2014, the use of active loop antenna for compliance testing is permitted in a non-sheilded environment ONLY if the saturation indicator is continuously monitored during the course of testing. Com-Power’s Remote Antenna Interface (RAI-100) comes in very handy for this application. It is a compact controller which can be used to enable/ disable RF measurement circuit and monitor saturation and battery low conditions remotely via a fiber optic cable up to 30 mtrs in length.

  • Multifunction I/O

    PXI-2006 - ADLINK Technology Inc.

    ADLINIK PXI-2010, PXI-2005 and PXI-2006 are simultaneous-sampling multifunction PXI modules to meet a wide range of application requirements. These products can simultaneously sample 4 AI channels with differential input configurations to achieve maximum noise elimination. They also provide 2-CH 12-bit analog outputs with waveform generation capabilities, which can be performed together with analog input functions. If more analog input or output channels are required, multiple modules can be synchronized through the PXI trigger bus. This makes the PXI-2000 series ideal for stimulus/response tests. The PXI-2000 series also feature analog and digital triggering, 24-CH programmable digital I/O lines, and 2- CH 16-bit general-purpose timer/counters. The auto-calibration feature adjusts the gain and offset to a specified accuracy, eliminating the need to calibrate the modules by adjusting trimpots.

  • Seismic Sensor

    SmartPhone D - Teledyne Marine Real Time Systems

    The highly rugged encapsulated SmartPhone D was designed for use with the SmartSource controller, or SmartPhone D system, for real-time monitoring of near-field signatures.​ The integrated 24-bit digitizer at the sensor element provides the lowest noise interconnect between the phone element and digitizing electronics, eliminating the issues of long signal lines and cross coupling while providing unprecedented signature fidelity at a sample rate of 2 kHz. The unique straight-to-digital design allows more flexibilty in umbilical design by providing digital communications clarity with even the longest of umbilicals. Built-in calibration ensures that the system will always report calibration levels. An on-board disciplined precision oscillator provides PPM-level sample rate accuracy. Built-in testing features and self-monitoring provide the user with instant assessments of the health of the phone.

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