Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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Product
Hydrophone
RESON TC 4033
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The TC4033 provides uniform omnidirectional characteristics within the full frequency range of 1Hz to 140kHz. The Typical sensitivity of -203dB re 1V/µPa and the capacitance of 7nF, ensure an excellent signal to noise ratio, thereby allowing TC4033 to be used with extension cables with only a limited reduction in sensitivity. The TC4033 offers excellent acoustic characteristics and durability, which makes it ideal for a wide range of applications and for calibration purposes.
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Product
Distributed I/O
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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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Product
Cigarette Lighter Socket Sensor
FT-0801
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The FT-0801 cigarette lighter socket sensor detects ignition noise of voltage from cigarette lighter socket sensor as rotation signal. Useful for signal detection from a cigarette lighter socket equipped in an automobile or construction machinery.Rotation signal can be detected from a cigarette lighter socket by using the FT-0801 even if it is difficult to attach a rotation detector inside of an engine room.
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Product
Tunable Lasers
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In 1989, Santec became the world’s first manufacturer of a single mode external cavity tunable laser. Developing the technology over the years, we have optimized the lasers to have a high sweep speed, wide tuning range, narrow linewidth and low noise.
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Product
Noise Source, 10 MHz to 18 GHz, nominal ENR 15 dB
346B
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The Keysight 346B noise source is the ideal companion to Keysight's noise figure solutions. Since it is broadband (10 MHz to 18 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source reduces a major source of measurement uncertainty; reflections of test signals. The 346B's high ENR, low SWR, and variety of connectors make it a general-purpose noise source. Add special option H01 for high ENR (21 dB typical) to measure high noise figure devices, or option H42 for measuring Direct Broadcast Satellite (DBS) low noise block converters.
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Product
Noise Sources
WGNS
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The system allows the user to extend the frequency range of the NFA to allow for accurate noise figure measurements to be performed on a device operating in the 26.5 – 170GHz range on wafer as well as in benchtop applications. Farran offers the WGNS series of noise sources to be used in conjunction with the FBC down converters for use as frequency extenders for noise figure measurement test system.
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Product
Amplifiers
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Motion Control Systems'' linear amplifiers are high performance servo controllers that produce very smooth sinusoidal motor currents using a linear amplifier output stage. In combination with a sinusoidally wound MCS brushless motor, the linear amplifier can achieve extremely precise rotational control with less than 1% torque ripple, no acoustic noise and almost undetectable levels of electromagnetic interference. Standard programmable features allow greater design flexibility, easy installation and start-up.
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Product
Ultra Low Level DC Voltage Amplifiers
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The EM A10 is a low level amplifier module for sensitive measurements, data collection and systems, where signals below 1 nanovolt may be measured. It is ideal for the input unit for precision voltage measuring systems, requiring voltage sensitivity for measuring low noise and low impedance sources. The noise level of the A10 is equivalent to a perfect resistor of about 20 ohms. When used with a digital voltmeter, steady one nanovolt digits may be displayed, with a response time constant of less than a second. The input voltage stability of the A10 is very high, with the drift around a nanovolt per degree C. The input connectors are made from pure copper. The input impedance is very high, and is time dependent, determined by the loop gain.
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Product
Sound Level Meters
Optimus
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The Optimus Sound Level Meters are a range of high performance sound level meters that use the very latest technology to provide you with a simple and accurate tool to measure and record noise levels. Combining the latest digital technology with ease of use. Class 1 & Class 2 to IEC 61672-1:2013 & IEC 61672-1:2002. High performance guaranteed - Class 1 & Class 2 Sound Level Meters.
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Product
Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 180 MS/s on 8 Channels, 8 Single-Ended Inputs
DN2.447-08
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The digitizerNETBOX DN2.44x series allows recording of one, two, four or eight 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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Product
FTTx PON Optical Amplifier (1540~1563nm)
HA5800C (3RU)
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Hangzhou Huatai Optic Tech. Co., Ltd.
HA5800C (3RU) series is a low noise, high performance, FTTP high power, multi-ports optical amplifier with gain spectrum band within 1540~1563nm. Each output port for optical amplifier has built-in well-performed CWDM. Every external up-link optical port of optical amplifier can connect with OLT PON port very conveniently. Each 1550nm (CATV)'s output optical port multiplex 1310/1490n's data stream, in order to reduce the quantity of the component and improve the index and reliability of the system.
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Product
Powered VME Crates
6U VME 195 Mini
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The VME195 mini crate is the perfect choice for small setups with only a few VME modules. The crate offers 9 VME slots in a compact designed chassis with integrated low noise power supply and cooling fan. The mini crate can be used on the desk either as a desktop or up-right unit or be installed in a 19” rack.
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Product
Gravity Sensors
iGRAV
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Superconducting persistent currents (i) produce the most stable relative gravity meter in existence. Superconducting persistent currents (i) produce the most stable relative gravity meter in existence. Super stable: Drift less than 0.5 µGal/month Scale factor constant to better than 1 part in 104 for years! Super precise: 1 nanoGal (10-3 µGal) in frequency domain 0.05 µGal in the time domain for 1 minute averaging. Super low noise: 0.3 µGal/(Hz)½.
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Product
NI-9253, 50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module
785989-02
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50 kS/s/ch, ±20 mA, 24-Bit, 8-Channel C Series Current Input Module - The NI-9253 is an 8-channel analog input module for ComapctDAQ and CompactRIO systems. Each channel provides a ±20 mA input range and 24 bits of resolution at a 50 kS/s sample rate. The NI-9253 has several diagnostic features to ensure your system is operating nominally at all times with open channel detection, power supply detection, and configurable thresholds. The NI-9253 has eight LEDs to indicate the status of each channel and the power supply so that a user in the field can easily validate that the system is operating normally. The NI-9253 also features a number of programmable hardware filters. By choosing the specific Butterworth and comb filters for your application, you can significantly reduce the noise in your system.
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Product
PXIe-5668, Up to 26.5 GHz PXI Vector Signal Analyzer
783124-02
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Up to 26.5 GHz PXI Vector Signal Analyzer - The PXIe‑5668 offers wide bandwidth with high-performance measurement performance and speed. It meets the challenging requirements of applications such as wireless communications, radio frequency integrated circuit characterization, RADAR … test, and spectrum monitoring and signal intelligence. With its implementation as a PXI instrument, the PXIe‑5668 also features the fast measurement speed required for high-volume manufacturing test, and multi-instrument synchronization capabilities for phase-coherent MIMO test. You can use the optionally included PXIe-5698 preamplifier to improve dynamic range and sensitivity near the instrument noise floor.
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Product
60W Dual Output Power Supply Two 35V, .8A or 60V, 0.5A
E3647A
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Keysight basic DC power supplies offer essential features for a tight budget. The single & dual output, 30-100 W GPIB E3640 series provide small, compact size for bench and system use; low output ripple and noise; and built-in measurements and basic programmable features with GPIB and RS232 interface. The Keysight 58W, multiple output E3647A is a clean, reliable power supply for general purpose applications, and combine convenient benchtop capabilities with flexible system features in a compact, multi-output package.
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Product
Ethernet/LXI digitizerNETBOX 16 Bit High Speed Digitizer - 250 MS/s on 16 Channels, 16 Single-Ended Inputs
DN6.442-16
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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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Product
Stethoscopes
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SKF Condition Monitoring Center
Excellent sound quality helps to reliably identify the possible cause of the noise
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Product
Phase Noise Measurement Solution, 50 kHz to 110 GHz
E5505A
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The Keysight Technologies E5500 Series of phase noise measurement solutions offers the most flexible set of measurements on one-port VCOs, DROs, crystal oscillators and synthesizers. Two-port devices, including amplifiers and converters, plus CW, pulsed and spurious signals can also be measured. The E5500 measurements include absolute and residual phase noises, AM noise, and low-level spurious signals. The stand-alone instrument architecture easily configures for various measurement techniques, including the PLL/reference source technique, residual and FM discriminator methods.
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Product
IGBT Power Supplies - Air Cooled
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CEHCO The MSA1000 Rectifiers are based on IGBT Technology. This reliable technology assures excellent quality DC currents with a ripple of < 3% and a control accuracy of less than 1%. The MS-Series features constant voltage and current control with easy, quick installation and maintenance. Modular versions easily increase the output by means of series or parallel connection. All models have DC short circuit protection. With forced air-cooled models, the cooling air quantity is controlled in relation to the load reducing contamination and noise levels.
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Product
PXIe Precision Source/Measure Unit, 1.25 MSa/s, 10 fA, 210 V, 315 mA
M9601A
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M9601A PXIe precision SMU is the industry-first precision PXIe SMU enabling faster precise measurement from DC to 20 μs pulse up to 210 V/315 mA with the best-in-class 10 fA resolution and low noise.
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Product
Hybrid Photon Counting Detectors
MYTHEN2 Series
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MYTHEN2 detectors guarantee noise-free performance, maximum resolution, and outstanding signal-to-noise ratios for an extended energy range from 4 to 40 keV. These systems include two module sizes: 1K with 1280 strips, and 1D with 640 strips. Their compact size, symmetrical sensor position, and DCS4 control unit make the MYTHEN2 series suitable for any diffractometer geometry — from portable instruments to large systems.
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Product
16 Differential I/O Multi-Mode Transceiver Channels
DF1
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Function module DF1 multi-mode transceivers with 16 programmable I/O channels. Differential transceivers increase resistance to noise by creating two complementary signals. These complementary signals produced on balanced lines double noise immunity by creating lower power requirements due to lower supply voltages.
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Product
Thin Film Based Thermopile Detector: 3 Channels
TM34
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A three-channel thin-film thermopile in a TO-8 package. Each symmetrically positioned active area is 3.16mm x 0.4mm. Offers low noise output and internal aperture minimizing channel-to-channel crosstalk while increasing sensitivity.
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Product
15 Amp 120 VAC Filter and Surge Arrestor
AS-AC15
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- 15 amp 120VAC quad outlet for high power devices- Resettable circuit breaker protection, easy to use and reset- I EA standard input plug and #14 GA AC line cord for USA - standard interface- MOV surge arrestors included - for even more protection- High level of common mode and differential mode filtering digital noise and RF filtering eliminates- digital artifacts and RF interference - See chart- Front Panel Neon Blue AC ON indicator - just plain cool to look at, not too bright!- Double shielded box inside - for optimum filtering operation- Size 6W X 4H X 4 3/4 D in inches approx 3 lbs
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Product
Binaurales Headset
BHS II
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*Mobile, binaural measurements.*Quick identification of disturbing noise components.*Service and quality control.*Training and education.
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Product
PXI/PXIe RF Multiplexer, Single 4-Channel, 3GHz, 75Ω, SMB
42-832A-001
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The 40-832A-001 (PXI) and 42-832A-001 are 75 Ohm 4 to 1 RF multiplexers with 1 bank in a single slot. They have been designed to exhibit 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 design of the 40/42-832A minimizes the injection of noise and unwanted signals into the signal path by careful attention to the mechanical and electrical design.
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Product
Optical Transmitter
ST1015-3mW
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Hangzhou Softel Optic Co., Ltd.
*Designed for FTTH(Fiber To The Home)Networks *Excellent Linearity and flatness *Single-mode fiber high return loss *Using GaAs amplifier active devices *Ultra low noise technology *Using DFB coaxial small package laser *Smaller size and easier install *Red-LED for power indication
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Product
Erbium Doped Fiber Amplifier
S-102
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The EDFA slot module of FOTS system with built-in power booster EDFA module offers a special function that is able to change the optical signal amplification feature variously, which is followed by user’s driving embedded pump LD freely. The output power of eash pump LD can be controlled separately by the program that is set up by user. When an optimum optical signal amplification particularity is needed, it is made up so that it can be materialized by choosing the Default mode provided along with User mode. More stable application of EDFA is possible through the monitoring of the factors such as in/out signal power, gain, alarm status and pump LD enabled by the application of FPGA processor which makes high speed driving possible. It is also set up that user’s present-time monitoring and control through LCD monitor of system main frame or GUI display for remote control can be possible. Through optimization of amplifier gain, noise figure, and saturated output power, this EDFA module will expand test capabilities in systems, components or sub-assembly manufacturing.
