Noise
a signal's fluctuation other than that desired.
See Also: Pink Noise, White Noise, RF Noise, Distortion, NVH
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PCI-4462, 204.8 kS/s, 118 dB, 3.4 Hz AC/DC Coupled, 4-Input Sound and Vibration Device
779309-01
The PCI‑4462 is a high-accuracy data acquisition module specifically designed for sound and vibration applications. It provides simultaneous four-channel dynamic signal acquisition with six programmable gain settings for making high-accuracy, frequency-domain measurements. The PCI‑4462 also includes software-configurable AC/DC coupling and integrated electronic piezoelectric (IEPE) conditioning to ensure precision measurements with microphones, accelerometers, and other transducers that have very large dynamic ranges. Common applications for dynamic signal acquisition devices include audio test; automotive test; noise, vibration, and harshness (NVH) analysis; and machine condition monitoring.
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Power modules
G.R.A.S. Sound & Vibration A/S
It provides polarization voltage for the transducer, ensuring that the microphone gets the charging voltage it needs.It provides supply voltage for the microphone preamplifier. The preamplifier acts as a unity gain impedance converter. It provides a certain amount of line drive capability by providing a low output impedance and output current, making it possible to transmit the signal from the transducer to the Power Module without significant degradation.A power module can provide amplification or attenuation to the signal, thus making it possible to fine tune the measurement chain to the signals being measured and the hardware being used.Selectable filters make it possible to exclude unwanted noise from the measurement, e.g. wind induced noise from outdoor measurements.Overload detection makes it possible to validate the measurements and is a useful tool in monitoring setups.When a Power Module with gain is used, you can use longer cables because of the power module's ability to deliver current.A Power module introduces electrical isolation
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Noise Source, 1 GHz up to 40 GHz
346CK40
The Keysight 346CK40 is the ideal companion to Keysight´s noise figure solutions when working on high frequency applications. Since it is broadband (1 GHz to 40 GHz), it eliminates the necessity for several sources at different frequency bands. The low SWR of the noise source greatly reduces measurement uncertainty, which are commonly reflections of the test signals. This is a coaxial noise source with a 2.4 mm coaxial connector. ENR typically 14 dB at 1 GHz, decreasing to 5 dB at 40 GHz (typical).
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FFT Sound Analyzer
WavePad
WavePad audio editing software is a full featured professional sound editor for Windows and Mac OS X. It lets you make and edit voice and other audio recordings and also comes with a wide range of powerful audio effects including echo, amplification and noise reduction.
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SCB-68A, Noise Rejecting, Shielded I/O Connector Block
782536-01
68-Pin Female Screw Terminal to 68-Pin Female D-SUB, DIN-Rail, Shielded I/O Connector Terminal Block - The SCB-68A provides a shielded I/O connection for interfacing I/O signals to plug-in data acquisition devices with 68-pin connectors. This Terminal Block combines with shield cables to provide low-noise signal termination. The SCB-68A incorporates a completely redesigned mechanical enclosure with a magnetic removable lid, DIN-rail mount compatibility, and a resettable fuse. It is compatible with single- and dual-connector Multifunction I/O with 68-pin connectors. The SCB-68A also includes two general-purpose breadboard areas and an onboard cold-junction compensation sensor.
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Linear Power Supplies Precision, Analog or Local Control, Ultra Low Ripple/Noise
Series ATE
Series ATE linear power supplies are precision analog-controlled power supplies. They feature high gain and zeroable offsets to follow voltage signals or variable resistance controls precisely. An optional fast mode provides fast programming response into the mid audio range, providing active down programming and active up programming. The voltage and current channels are equally controllable with automatic crossover between modes. These power supplies offer ultra low noise and ultra low ripple at the output and are MIL-STD-461 compliant.
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Mixed Signal Oscilloscope: 16 GHz, 4 Analog Plus 16 Digital Channels
MSOV164A
16 GHz analog bandwidth (upgradable)4 analog plus 16 digital channels Capture a longer signal trace with up to 80 GSa/s sample rate and 2 Gpts of acquisition memory Get the best signal integrity with the low noise floor (1.32 mVrms at 50 mV/div) and lowest jitter measurement floor (100 fs)See better measurement accuracy with ENOB values in excess of 5.5 and a SFDR exceeding 50 dBC Access the broadest range of jitter, trigger, analysis and protocol tools (featuring Precision Probe)
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Audiometric Rooms - G Series Panel System
Eckel Noise Control Technologies
Eckel offers a wide range of standard rooms and custom-made suites to meet audiological clinical and research requirements. All combine high performance, versatile design and economy. Eckel acoustically engineered G-Panel construction affords excellent noise reduction. Choose from 19 demountable (G-Series panels) standard models and custom-made rooms for your specific needs. Rooms are easy to install, easy to take down and move.
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Low Power Op Amplifiers (< 1mA/amp)
Analog Devices low power op amps offer a variety of benefits in many applications such as prolonging battery life, easing waste heat management in end equipment, reducing self heating to minimize thermally induced offset shift, and reducing total system power consumption and cost. Offering power efficient devices without compromising speed, noise, and precision has been a key focus on developing products at ADI.
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MEMS Sensor Simulation
SimSENSOR
Performance testing of sensor fusion in MEMS inertial and multi-GNSS navigation systems. SimSENSOR extends the capabilities of Spirent’s multi-GNSS simulators by simulating MEMS sensor outputs on a common trajectory with the simulated GNSS RF signals. The simulated MEMSs sensor outputs include user control of representative noise and errors (bias/drift).
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Embedded Synchro - Resolver -
LVDT I/O Cards
Computer Conversions Corporation
100% Transformer Isolation is offered for all AC I/O, and various Isolated DC converters are available as standard product, eliminating concerns for ground-loops, ground interjected (intermittent and ghostly) field noise, inductive surges, differing potentials, and high voltage field transients from effecting the card itself, the sensitive ISA bus backplane and any other device or system sharing these signals.
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Integrated Board Power Management Functions For The Forward Thinking Engineer
Power Manager II
*Up to 12 differential voltage sensors with immunity to noise on ground plane*Voltage trimming to within 1%*Ruggedized CPLD with up to 48 macrocells for sequencing and supervisory signal logic*Large operating power supply range (3.3 V + 20% to 3.3 V -15%)*Up to 4 High-Voltage MOSFET Driver Outputs*Voltage Measurement with 10-bit ADC through I2C*Up to 8 On-chip DACs for Margining and Trimming
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Sound Level Test System
In a world where precision and performance rule, measuring and controlling sound levels can be crucial to the success of your product or project. The team at Integrated Test & Measurement (ITM) have developed a customized solution that not only measures and collects sound-level data, but will help your team identify the specific components causing all that noise.
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RF And Microwave Signal Generation And Analysis
The need for microwave test and measurement technology is even more urgent than the need for microwave equipment itself. Therefore, Shengbo Technology is relying on its own research and development capabilities to strive to become one of the comprehensive microwave test and measurement equipment suppliers. We provide a wide range of RF microwave test products, including a good-quality full-band broadband up-down converter . You can provide 2GHz real-time bandwidth signal up-down conversion function in the frequency range of 0.1 ~ 40 + GHz. With our channel simulator , we Became the first company in the world to provide channel analog solutions in such a wide range of broadband signals. At the same time, we are also an innovativesupplier of noise sources and multi-channel microwave signal sources in the industry.
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Photomultiplier
PMT-101
Photo Multiplier Tube with a range of 185 - 700 nm. Has a built in power supply. Built in low noise amplifier with a gain of x1 and x100.
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Power Sensor and SNS Noise Source Cable (6.1m/20 feet)
11730C
The Keysight 11730 series power sensor cables are used with the 8480 and E-series power sensors (except the E9320 family of peak and average sensors). These cables are designed to reduce RFI effects on low power readings with an improved shielding design in the cable itself. Cables may be ordered individually or in pairs in any combination desired for single and dual-channel measurements.
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C Series Strain/Bridge Input Module
The C Series Strain/Bridge Input Module works with higher-channel-count, dynamic strain measurement systems. Modules can acquire measurements from up to eight channels, with compatibility options for quarter-, half-, and full-bridge sensors. The C Series Strain/Bridge Input Module is ideal for application channels requiring measurements at particular times, such as impact tests. It includes built-in voltage excitation, as well as transient isolation for high-common-mode noise rejection and improved safety.The C Series Strain/Bridge Input Module includes the NI-DAQmx driver and configuration utility that simplify configuration and measurements. NI-DAQmx supports NI programming environments as well as Python, ANSI C, C#.NET, and MathWorks MATLAB® software.
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High and Low Temperature Humidity Chamber
GDJS/GDJW
•The chamber is produced by SUS304 Steel, the temperature keeping material is produced by Polyurethane hard foam and ultra-fine fibre glass, the doorframe heat insulated by Double high temperature aging silicone rubber door sealing strip. •The temperature controller is used by Korean TEMI display in English/Chinese and German Siemens PLC, it can be communicated to PC via RS-232. The temperature accuracy is 0.1℃ and humidity is 0.1%R.H •The temperature sensor is platinum PT100 Ohms/MV resistor •The heating system is full separately system which produced by Nickel chromium alloy electric heating type heater •The cold system is applied by fully enclosed fan cooled single-stage and cascade refrigeration mode, the compressor is from France TECUMSEH brand which can allow you get after sales support from many countries •The cyclical system is applied by High temperature low noise air conditioning type motor and Multi blade centrifugal wind wheel •The safety self-protection function include Electric leakage, short circuit, over temperature, motor overheating, compressor pressure, overload, over-current protection •Working Power: AC380V±10% 3phases and frequency 50Hz/60Hz •Working Environmental: Temperature is 5℃～+30℃ Humidity ≤85%R.H
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RF Amplifier
SA831
Hangzhou Softel Optic Co., Ltd.
*The microwave low noise amplification circuits are used as forward and backward paths of SA831 products. CATV special RF modules encapsulated by SOT-115 are used as forward paths of SA831 products. The microwave low noise amplification circuits are used as backward paths of SA831 products.*It is more convenient to debug, because of plug-in duplex filters, plug-in fixed (or adjustable) equalizers, plug-in fixed (or adjustable) attenuator plug-in output splitters and scientific and rational on-line detection ports.*The equipment can work steadily outdoor under bad environmental condition, because of waterproof aluminum case, high reliability switching power supply and lightning protection system.
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USB 3.0 And RJ45 Cat6 To VTAC Interface
YAVAM852
USB and RJ45 sockets to VTAC VPC contactsHigh speed interface between connectors up to 1GbpsAvoids noise and interferences on signals thanks to VTAC contacts technology
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350 MHz Preamplifier
SIM914
Stanford Research Systems, Inc.
The SIM914 350 MHz Preamplifier contains two wide-bandwidth, DC-coupled amplifiers, each with a gain of 5 (14 dB). Its fast rise time, low noise and excellent DC accuracy make it an ideal instrument for amplifying signals like those from photomultiplier tubes and photodiodes.
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4 GHz ProBus2 Differential Probe with Dx20-SI Solder-In Tip
D420-A-PB2
- Choice of 4 GHz or 6 GHz bandwidth models- Up to 5 Vpk-pk dynamic range with low noise- ±3 V offset range- Low loading and high impedance for minimal signal disturbance- Ideal for DDR2, DDR3, LPDDR2- Deluxe soft carrying case- Innovative QuickLink architecture- Wide variety of tips and leads-- Solder-In Lead-- Optional Positioner (Browser) Tip-- Quick Connect Lead-- Square Pin Lead-- HiTemp Solder-In Lead
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Utilities
Audio signal generator that include sine waves, square waves, white noise, and pink noise. The noise signals may be octave-band limited. In landscape mode, you can set sweep start and stop frequencies, and a time in seconds.
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Temperature Measurement IR Sensors & Detectors
1M
A thin film-based thermopile with a 1.0mm diameter active area with good signal-to-noise ratio in a TO-5 package and a moderate time constant of 32ms with Argon encapsulation gas.
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Data Acquisition Systems
LMS SCADAS
Siemens Digital Industries Software
The LMS SCADAS state-of-the-art data acquisition systems cover all types of noise, vibration, durability testing and engineering tasks in the lab, in the field, with a PC or through autonomous recording. Seamless integration with LMS Test.Lab and LMS Test.Xpress provides you with reliable results and optimal testing productivity. Take your mind off the deadline and focus on the test. From lab to mobile to portable.
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Noise Monitoring Station
HD2011NMT
HD2011NMT is a remote control Noise Monitoring Station with meteo parameters acquisition. It is designed to be part of a network of noise monitoring terminals or a stand alone unit.
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RF Synthesizers Modules
Holzworth Instrumentation, Inc.
Holzworth's RF Synthesizers Modules were originally designed as the internal, tunable LO test sources for Holzworth phase noise analyzer products. Due to the need for easy integration, the HSM Series designs incorporate a long list of electrical and mechanical features to satisfy the demanding requirements of today's high performance communications systems and integrated test systems. FIELD PROVEN RELIABLITY with MTBFs exceeding 240kHrs.
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Sound Level Indicators
A sound level meter is a measuring instrument used to assess noise or sound levels by measuring sound pressure. Often referred to as a sound pressure level (SPL) meter, decibel (dB) meter, noise meter or noise dosimeter, a sound level meter uses a microphone to capture sound. The sound is then evaluated within the sound level meter and acoustic measurement values are shown on the display of the sound level meter. The most common unit of acoustic measurement for sound is the decibel (dB); however, some sound level meter devices also determine the equivalent continuous sound level (Leq) and other acoustic parameters. With a portable sound level meter, industrial hygiene and workplace safety professionals can measure sound levels in multiple locations to ensure environmental conditions fall within recommended exposure limits (RELs). Some sound level meter devices can be permanently installed for continuous monitoring of sound levels at a work or job site.An important attribute to consider when searching for a suitable sound level meter is its type or class. The type or class of a sound level meter defines the device's accuracy as per American National Standards Institute (ANSI) or International Electrotechnical Commission (IEC) guidelines. Typically, "type" is the grade according to the ANSI S1.4 standard, whereas "class" is the grade according to the IEC 61672 standard. There are two types or classes assigned to sound level meters: type 1 / class 1 or type 2 / class 2. For assessing noise in basic industrial, commercial, educational, recreational or residential applications, a type 2 / class 2 sound level meter usually will suffice. For precision-grade assessments often made in a laboratory, a type 1 / class 1 sound level meter primarily is used. PCE sound level meter products are lightweight, easy-to-use and manufactured in accordance with the highest industrial standards.
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NI-9262, 1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module
785503-01
1 MS/s/ch Simultaneous, ±10 V, 6-Channel C Series Voltage Output Module - The NI-9262 is a simultaneously updating analog output module. It features overvoltage protection, short-circuit protection, low crosstalk, fast slew rate, high relative accuracy, and NIST-traceable calibration. The NI-9262 module includes a channel-to-earth ground isolation barrier for safety and noise immunity.
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Chromatic Dispersion Measurement System
CD500
The CD500 is a chromatic dispersion measurement system for use in fiber and cable manufacturing, designed to produce accurate measurements quickly and with confidence. The CD500 uses a temperature-stabilized solid-state monochromator driven by a digitally derived RF frequency signal that allows the wavelength to be set and maintained with picometer precision and stability. Using a digital approach and employing the latest in DSP technology, the CD500 yields fast low noise drift-free results.
