Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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USB Controlled High Precision Audio Test Interface
AudioConnect 4×4
AudioConnect 4×4 is a high accuracy 4-in, 4-out audio interface specifically audio test and measurement. It offers digital and analog audio in and out at any user-specified sampling rate up to 200kHz, and a high signal to noise ratio and wide frequency response, making it suitable for the most demanding measurement applications. Controls are simple – a single USB connection and a power indicator – all other typical soundcard controls that are not used for audio test applications have been eliminated to make operation and calibration simple with no room for error. AudioConnect 4×4 is supplied fully calibrated.
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Infared Thermal Imager
China Sheenrun Electronics Co.
*Using a continuous zoom lens, the image is clear, the detection distance is long, it can search in a large range, but also can observe the target at close range*Advanced image noise reduction processing, adding digital image details to enhance DDE function, output hot white/hot black/false color image*Low power consumption, fast startup, stable performance, clear imaging, uniform picture*Simple operation, easy to use and maintain*Precision-cast aluminum alloy shell, sealed and waterproof, filled with nitrogen, resistant to harsh environments, long working life
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Distributed I/O
Schweitzer Engineering Laboratories, Inc.
Expand the I/O of SEL relays and communications processors, reduce copper in substations by transferring I/O from remote locations over fiber, and provide electrical isolation to avoid ground paths and induced noise and interference.
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PCI Bit Synchronizer
LS-40-P
The Lumistar LS-40-P PCI Bit Synchronizer provides optimal reconstruction of a serial PCM data stream that has been corrupted by noise, phase jitter, amplitude modulation, or base line variations. The all-digital design assures a consistent product with high reliability and long-term stability. The LS-40-P PCI Bit Synchronizer consists of the LS-40-DB Bit Synchronizer Daughterboard shown below mounted on a PCI carrier board.
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Down Converter
The products have a big Dynamic Range, are highly linear and have low Noise Figures to keep the best possible quality of the signals to be converted. For this reason an internal filter for secondary wave suppression is implemented.
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Optical Frequency Combs
The Optical Frequency Comb technology is regarded as a breakthrough technology for measurements with highest accuracy. Lowest phase noise, stable supercontinuum, and turn-key operation make the Menlo Optical Frequency Comb solutions unique in accuracy and reliability. According to our principles: The best Optical Frequency Comb for any application.
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Infiniium UXR-Series Real-Time Oscilloscopes
UXR-Series
The Infiniium UXR-Series oscilloscopes deliver world-leading performance, ultra-low noise, and high signal fidelity for engineers and scientists to truly see and understand the fastest phenomena – enabling you to develop the next generation of technology and research more quickly.
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Rubidium Oscillators
Our range of precise low noise rubidium oscillators in a variety of sizes to suit all appliations. These acurate frequency references are used in telecoms, aviation, nautical and precision test and measurement enviroments.
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Infiniium V-Series Real-Time Oscilloscopes
V-Series
Bandwidth upgradability to 33 GHz for best investment protection Maximize eye height measurements with the least amount of noise contribution from the oscilloscope See the truest jitter performance of your design with the lowest 100 fs oscilloscope intrinsic jitter Debug some of your most difficult designs with the industry’s longest hardware serial trigger
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Microwave Amplifiers
MShU Series
*Ultrawide Operating Frequency Range*Small Size*Low Noise Figure*Low Power Consumption
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Digital mammography system
AMULET
The new format FPD has a proprietary panel structure with a double layer of amorphous selenium that has high X-ray absorption properties, and was developed by combining Fujifilm''s "Device Development Technology" and "Vacuum Deposition Technology." The first layer efficiently converts X-rays into electrical signals, while the second layer employs the unique "Direct Optical Switching Technology," that captures higher resolution and lower noise image electrical signals rather than using electrical switches such as conventional TFTs. By achieving both "50µm fine pixel size (higher resolution) and low noise," the AMULET system can show microcalcifications and tumors in greater detail, both significant indicators for early diagnosis of breast cancer.
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Voltage Pulse Generator
SKS-IV10J
Shanghai Sanki Electronic Industries Co., Ltd.
The voltage pulse generator SKS-IV10J is completely designed in accordance with the requirements of the impulse voltage chapter in OIML R 46-1/-2; it meets the requirements of the new IEC60255-5 and GB14711 standards; the leakage current detection alarm function is added, and the leakage current limit can be Adjustment; using linearized high-voltage power supply, low noise, high stability, high voltage accuracy and long service life.
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Lock-In Voltage Preamplifier
SR550
Stanford Research Systems, Inc.
The SR550 Voltage Preamplifier is designed to work with any SRS lock-in amplifier. Preamplifiers provide gain close to the experimental detector, before the signal-to-noise ratio is permanently degraded by cable capacitance and pickup
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32-CH/64-CH Isolated Digital I/O PCI Express Card With Digital Filter
AX92351
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.
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Acoustics
When it comes to selecting a microphone for product tests—whether for sound power, sound quality, or noise source location—there's no need to compromise to sacrifice quality or performance for affordability.
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Noise Sources
This power amplifier ensures that you get the maximum sound pressure level out of the Norsonic range of speakers.
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PXI/PXIe RF Multiplexer, Single 4-Channel, 3GHz, 50Ω, MCX
40-872A-101
The 40-872A-101 (PXI) and 42-872A-101 (PXIe) are 50 Ohm 4 to 1 RF multiplexers with 1 bank in a single slot. They have low insertion loss and VSWR through the use of modern RF relay technology at an affordable cost. Each MUX has been carefully designed to ensure excellent and repeatable RF characteristics to frequencies of 3GHz with each path having a nominally equal insertion loss. The injection of noise and unwanted signals into the signal paths of the 40/42-872A has been minimized by careful attention to the mechanical and electrical design.
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Amplifiers
CAES manufactures custom amplifiers in a wide variety of configurations from LNA (Low Noise Amplifiers), Medium and High Power, and wideband solutions.
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GHZ-Wideband Amplifiers
Ultra-wide bandwidth from 10 kHz up to 2.5 GHzGain up to 60 dB (x 1,000)Transimpedance gain with photodetectors up to 50,000 V/AVery low input noise down to 310 pV/√Hz (6.2 pA/√Hz)Integrated DC-current path for biased photodetector applicationsTwo identical signal outputs (HSA-Y series)DC-monitor output (HSA-Y series)
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SCB-100 Noise Rejecting, Shielded I/O Connector Block
776990-01
100-Pin Female SCSI to 100-Pin Female Screw Terminal, Desktop Mount Terminal Block - The SCB-100 is a shielded I/O connector block for interfacing I/O signals to NI data acquisition devices with 100-pin connectors. Combined with the shielded cables, the SCB-100 provides rugged low-noise signal termination.
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Positional Current Probe, PCB Track Touch And Measure
I-prober 520
Current measurement from insulated probing of conductorSuitable for observation and measurement of current in PCB tracks, component leads and ground planesWide dynamic range of 10mA to 20A peak to peakWide bandwidth of DC to 5MHzLow noise figure equivalent to <6mA rms at full B/WSafety rated to 300V Cat II (600V Cat 1)Suitable for connection to any oscilloscopeHigh accuracy general purpose H-field probeConverts to 'closed magnetic circuit' current probe
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RF Milliwatt Meters
Type NDB-2 and NDB-3
National RF’s Type NDB-2 and NDB-3 RF Milliwatt Meters are affordable pieces of test equipment for both the RF laboratory and the home experimenter. Both provide a digital reading of RF power in dB reference 1 milliwatt of power into a 50 ohm load (i.e. 0 dBm). The circuitry consists of a low noise logarithmic amplifier that drives a digital A/D converting meter circuit. The lowest power levels that can be read are about –73 dBm (approximately 40 microvolts or .00000003 milliwatts). The maximum power input should not exceed 10 milliwatts (+10 dBm or .010 watts) when inputed without attenuation. An internal attenuator is provided and described in the next section.
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RF Amplifiers
UST specializes in the testing, repair and refurbishment of all types of RF amplifiers (broadband and narrowband), microwave amplifiers and millimeter-wave amplifiers: solid state, thin film, traveling wave tube (TWT), low noise RF amplifiers, intermediate power RF amplifiers, limiting RF amplifiers, doubler RF amplifiers, driver RF amplifiers, variable gain RF amplifiers, and active frequency multipliers.
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Ethernet/LXI digitizerNETBOX 14 Bit High Speed Digitizer - 500 MS/s on 20 Channels, 20 Single-Ended Inputs
DN6.445-20
The digitizerNETBOX DN6.44x series allows recording of up to 24 synchronous channels with sampling rates of 130 MS/s up to 500 MS/s. These products offer outstanding A/D features in resolution, bandwidth and speed as a remote instrument. The powerful A/D amplifier section offers six different input ranges, two input paths, AC/DC coupling and noise reduction filters.
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Abnormal Noise Detection System In-Line Tester
MV-6000B
This product sets criteria found with waveform analysis software, and runs automatic judgment in-line.
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Bump Tester
KD-163
King Design Industrial Co., Ltd.
*Comply with IEC-68-2-29 testing specification(10g/ 16ms、15g/6ms、 40g/6ms、100g/2ms).*Easy installation and simple operation; Low noise; no maintenance required; function holds long.*Well-designed and no resonant-structure, air anti- vibration pad can effectively isolate floor vibration.*Accelerometer adopts repeated measurement and adjustable half-sine wave generator; to control the data is precise.*Magnesium alloy platform is anodized, Servo motor cam to drive, and can adjust the frequency automatically.*The adjustable acceleration value and shock domain is patent design (1ms-13ms).
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Noise Consultants Assessment System With 1/1 & 1/3 Octaves Class 1
01NK111/112
This Noise Assessment System can be configured to your exact requirements, making it the ideal product for Noise Consultants who perform a wide variety of noise assessments for industrial and environmental noise.
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DC Power Supply
PW-3032
*Low Ripple & Noise*30V/3A+5V/3A Dual output.*<0.4m Vrms Ripple & Noise(C.V.)*<2.5m Arms Ripple & Noise(C.C.)*Dual Display.
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C-Band DWDM Line Amplifier EDFA (WLA-C)
HWA4200 (With SNMP)
Hangzhou Huatai Optic Tech. Co., Ltd.
Huatai HWA4200 series, is designed for C-Band 44 waves or 88 waves DWDM system design Line Amplifier gain flatness. Products using the most excellent optical performance, the most advanced electronic control technology and comprehensive software features, has a wide operating wavelength range, Low noise, excellent gain flatness characteristics and transient characteristics.
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Ethernet/LXI digitizerNETBOX 14 Bit High Speed Digitizer - 500 MS/s on 12 Channels, 12 Single-Ended Inputs
DN6.445-12
The digitizerNETBOX DN6.44x series allows recording of up to 24 synchronous channels with sampling rates of 130 MS/s up to 500 MS/s. These products offer outstanding A/D features in resolution, bandwidth and speed as a remote instrument. The powerful A/D amplifier section offers six different input ranges, two input paths, AC/DC coupling and noise reduction filters.
