Sound Sources
Standard for calibrating sound level meters and sound measuring systems.
See Also: Acoustic Sources, Acoustic Cameras
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Sound Level Indicators
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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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DC Sources
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Electronic Test & Power Systems
Adjustable constant voltage and constant current sources are provided across the entire DC source range. Additionally constant power operation is standard on the high power DC supplies and optional on the medium power models. Modular high current DC power supply systems providing up to 2kV at 2MW can be assembled.A variety of interfaces are available. Analogue, RS232, CAN, RS485, Ethernet or IEEE 488.2 can be specified for most units. LabVIEW drivers are also offered to aid system integration.
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Light Source
UVF-210S
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By traversing two light guide ends (right and left) by means of the high accuracy air cylinder, alternating irradiation of two independent positions is possible.
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Light Source
LS-BA
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Balance Light Source (LS-BA) is designed for transmittance and absorbance measurement with color information. Halogen Light source provides the stable and smooth wide-band spectral output. It’s proper for most visible to near infrared range measurement. The efficiency of blue region will be enhanced by extra two blue LEDs.
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Digital Sound Level Meter
Model KM 926
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Kusam Electrical Industries Limited
• KM 926 designed according to the IEC 651 TYPE 2 & ANSIS1.4 TYPE 2 for sound level meter.• Instantaneous sound measure function.• Measurement Range : 30 ~ 130decibel• With two equivalent weighed sound pressure levels, A & C.• Fast & Slow dynamic characteristic modes.• AC & DC signed output for frequency analyzer level recorder, FFT analyzer, graphic recorder etc.
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Sound Meter
4431
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The Kanomax Sound Meter – Model 4431-1G is the world’s first 0-dB function sound meter available. It is designed to meet Type 2 standards for ANSI S1.4 1983 and IEC 61672-1. The magnetic accelerometer easily attaches to machinery for increased accuracy and precise operation.
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Sound Level Meter
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Is used for acoustic (sound that travels through air) measurements. It is commonly a hand-held instrument with a microphone. The diaphragm of the microphone responds to changes in air pressure caused by sound waves.
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Multi-Laser Light Source
LS-n
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The LS-n is a customizable, compact fluorescence excitation source that provides up to four different laser wavelengths in a single combined output beam, with each laser individually controllable using ANF's custom software. An LS-4 unit (containing four lasers) is included with each standard NFM NanoFluorescence Microscope.
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Sound Level Meter
AWA5636-0
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Hangzhou Aihua Instruments Co., Ltd.
Complies with IEC 61672 Class 2 use in Industrial Noise Surveys ; machinery, vehicles, ships and etc
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Incandescent Light Sources
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Collimated, uniform, 1 inch diameter output beamSupports 75W-300W QTH LampsSupports xenon, mercury, & mercury-xenon arc lampsForced Air CooledRefractive condensing optics attachments availableVariable power supply (purchased separately) with optical feedback (option)Vertically mounted arc lampSide exit port with back spherical reflector
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Digital Sound Level Meter
KG-70
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Backlight LCD helps easy reading in dark place.MAX/MIN measurement.Wind Screen supplied to cut off wind noise affects.Frequency weighting (A/C) selectable.Time weighting (FAST/SLOW) selectable.Display Hold, and Auto Power Off
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AC Power Source
APS-7000 Series
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AC Power Source APS-7000 Series, the advanced direct digital frequency synthesizer (DDS) waveform is used to achieve high frequency stability, good continuity and accurate measurement.
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Light Sources
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Fiber optic light sources are a low-cost way to analyze and identify accurate fiber optic readings, while certifying optical fiber. Receive the ability to measure fiber optic light continuity, loss, and quality of the signal.
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Sound Level Meters
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Acoustic Data These definitions are intended simply as an aid to understanding and for this reason, some are not strictly scientifically accurate. For correct formal definitions, consult IEC standards 60651, 60804, 60942, 61252 and IEC 61672: 2003 part 1.
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Sound Meters
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Sper Scientific sound meters include all the features and functions needed for basic noise level surveys or to meet the requirements for OSHA compliance, community noise ordinances or machine noise evaluation. These sound meters are used by: Industrial Hygienists, Sound Engineers, Construction Engineers, Municipal Code Enforcement officials, Industrial Quality Control, Environmental Scientists, and many more.
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Source Phase Control
S96088B
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The S96088B allows users to set calibrated, arbitrary phase differences between two signal sources running on the E5080B ENA.
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VCSEL Light Source
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ams supplies LiDAR systems with specific light sources, called VCSEL (Vertical Cavity Surface Emitting Laser). These VCSELs offer specific advantages over other types of light sources as for instance Edge Emitter Lasers:
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Sound Level Meters
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Digital Sound Level Meter is a multi-function instrument. It measures both the A and C weightings. It is excellent for checking noise levels to remain in standards of compliance and has many other applications.
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PXIe-4140, 4-Channel Source Measure Unit
781742-01
Source Measure Unit
The PXIe-4140 is a 4-channel source measure unit (SMU) ideal for high-pin-count applications. It features 4-quadrant operation, and each channel has integrated remote (4-wire) sensing for accurate measurements. The fast sample rate of the PXIe-4140 can reduce measurement times, capture transient device characteristics, and allow quick I V characterization of devices under test (DUTs). With a high-speed sequencing engine, you can synchronize all these SMUs with each other or with other instruments such as switches or high-speed digital test modules.
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Sound Level Meters
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Is designed to respond to sound in the same way as the human ear and to give reproducible measurements of sound pressure levels.
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Light Source Colorimeter
CX-HP2
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Shenzhen Chuangxin Instruments Co., Ltd.
Light source colorimeter is a newly developed pocket colorimeter, adopting advanced spectrometer and microprocessor technology. It makes traditional laboratory instrument available for the production on-line quality acceptance, thus greatly improve the efficiency of fluorescent lamp, CFL, LED manufacturing.
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Primary Reference Source
VCH-1008C
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The primary reference source VCH-1008C is designed to form highly stable signals used in digital communication networks as the first level of the hierarchy. The use of digital technologies for the formation and processing of signals allows you to realize the best stability characteristics.
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Sound Level Test System
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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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Light Sources
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These external units provide illumination which is transmitted to the viewing instrument by a light guide cable, and then through the scope via the integral fiber bundle to the viewing tip.
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Dynamite Source Controller
BOOM BOX III
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*Easy to Use, just hold the Arm and Charge toggles, Unit charges and is ready to fire*Web based interface allows easy setup and storage of data on PC, Tablet, or Cell phone*Shooter updated with easy to read graphical display and status LEDs*Same unit used for Encoder and Decoder modes
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Current Sources
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Innovar Current Sources are the standard in the circuit breaker industry. Our Current Sources supply regulated current from 1 amp to 100,000 amps with incredible accuracy, along with providing a full set of features that is unmatched by any other Current Source in the market.
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Noise Source Family
347
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The R347B waveguide noise source cover the R-band (26.5 to 40 GHz frequency range), while the Q347B model cover the Q-band (33 to 50 GHz frequency range), allows you to make accurate noise figure measurements on millimeter-wave devices.
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Sound Power Measurement
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Dewesoft sound power measurement solution merges the best of both worlds: widely established sound power measurements with familiar, distinctive user interface and industry unmatched adaptability. Rate and compare different noise sources with ease and exactness while simultaneously monitor any number of additional parameters.
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Laser Source
TW3109
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Techwin(China) Industry Co., Ltd
can provide 1 to 4 output wavelengths to meet specific requirements, including the 650nm red source and the 1310/1550nm wavelengths for single mode fiber or the 850/1300nm wavelengths for multimode fiber, as well as other wavelengths according to customer needs. Together with the TW3208 optical power meter, it is a perfect solution for the fiber optic network characterization.
