Acoustic
the study of sound.
See Also: Sound, Ultrasound, Audio, Infrasound, Reverberation, Acoustical, Bioacoustic, Audio Test Systems
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Product
Asset Monitoring
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Innerspec manufactures and commercializes unique monitoring solutions using proprietary EMAT technology under our FARSENSE NDT division. In addition to our own developments, we have also partnered with MISTRAS to commercialize their Acoustic Emission monitoring technology in selected markets in Europe.
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Product
Real-Time Online Monitoring to Detect and Analyze Potential Partial Discharge (PD) Signals and Insulation Faults using UHF, AE, and HFCT
PDMonitor
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Power Monitoring and Diagnostic Technology Ltd.
The PDMonitor, which utilizes Ultra High Frequency (UHF), Acoustic Emission (AE) and High Frequency Current Transformer (HFCT) sensors and is designed to conduct real time online monitoring to detect and analyze potential Partial Discharge (PD) signals and insulation faults before they lead to breakdown or catastrophic failure in power assets. The system provides the developing trend of the PD, when occurring, as alarms in real time, thus helping to predict the insulation degradation status of the asset, prevent sudden accidents, and provide an effective database for Condition-Based Maintenance (CBM) of power assets.
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Acoustic Transducer
RESON TC 1026
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Ideal for taking long or short baseline measurements, the TC 1026 is a powerful communications transducer for transponder, telephone and acoustic telemetry systems.
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Product
Cable Fault Finder
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Techno Instrumentation (India) Private Limited
Magnetic and Acoustic signal strength through bar graph and digits on LCD.Coincidence feature gives distance to the fault in milliseconds.Easy, fast and accurate pinpointing of faults.
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Product
Ultraschallmikroskop And Scanning Acoustic Microscopes
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Microtronic Microelectronic Vertriebs GmbH
mage quality. Speed. Uptime. They’re all crucial. Getting all three at the same time in a nondestructive testing (NDT) solution for package inspection is the challenge. It takes continuous innovation, advancing the state of the art to keep pace with the semiconductor industry’s own exponential progress.Sonix has been the innovation leader since 1986. Today, the ECHO line of scanning acoustic microscopes sets the standard for package inspection speed and image quality, to help you keep pace with new packaging materials and difficult form factors. The ECHO platform will remain at the forefront as we continue to add features and enhance performance for years to come.
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Product
Partial Discharge Testing Equipment
AR700
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PD Defect Location in High-Voltage Equipment Insulation by Acoustic Sensors To act on deteriorating insulation the source of PD must be known.The insulation defects produce partial discharges, which emits electrical impulses, radiation of electromagnetic waves as well as acoustic signals.The AR700 measures acoustic signals with multiple sensors spread over the transformer. Then the software determines the failure location using the time difference of all incoming signals. Finally, these coordinates are shown in a 3D model of the transformer. AR700 device is used for measuring of acoustic signals on the external surfaces of gas-insulated breakers and substations, power transformers and other tank high-voltage equipment. The acoustic signals are caused by partial discharges in the insulation, which is the sigh of the defects.The advantage of “AR700” device is the quick installation of the acoustic PD sensors on the external surface of high-voltage equipment tank. The sensors have magnetic holder that is why there is no need to de-energize the equipment for the sensors installation. “AR700” device has 4 syn-chronic channels for acoustic signal measurement. This gives the possibility not only to find the defects in the insulation, but also to locate them. The location function of the “AR700”device is unique for acoustic devices.
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Product
Acoustics
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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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Product
Precigrader: Acoustic MSR System
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Precigrader is an acoustic on-line strength grading system. The system is installed in more than 150 mills. It is used to determine common commercial grades in North America, including 1650 and 2100. A spring-loaded impact mechanism strikes the lumber as it passes. The resulting vibration is captured by microphones to determine the appropriate MSR grade.
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Product
Microphone Arrays
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One of the most important parts of an Acoustic Camera is the microphone array. It determines the spatial distribution of the acoustic microphones and therefore measurement performance of the whole system. In order to achieve the maximum possible performance in any given application, we offer a wide variety of microphone arrays. No matter if the measurement is beamforming, intensity or holography ... we have the right microphone array. For special applications we can design and build custom made microphone arrays according to the requirements of the application.
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Product
Profiling Current Meter and Wave
SeaGuardII DCP Wave
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The SeaGuardII DCP Wave is a 600kHz Doppler Current Profiler able to measure directional wave parameters and currents from a bottom mounted installation.The Acoustic Wave software 5759 used by the DCPS implements unique features to improve the wave measurement accuracy by optimizing the signal to noise ratio.Maximum deployment depth is 40m in normal scatter conditions. The Profiling Current Meter and Waveis available as a self-recording instrument. It can be easily integrated into a real-time system offering reliable two-way communication.
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Building Acoustics
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Measurements to evaluate and improve Building Acoustics are typically made to analyze and design noise control from room to room, or from outside to inside. Noise sources such as music systems, televisions, appliances, traffic, aircraft, and manufacturing are all around us. The field of Building Acoustics evaluates and designs the materials and methods to insulate and isolate us all from these sound sources when we are at work, rest, or enjoying leisure time. The resulting data is useful for evaluating compliance with building codes and for proposing countermeasures for areas of concern. These measurements often involve creating and measuring an artificial sound source, and then measuring the resulting noise in receiver locations.
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Product
Membrane Hydrophones
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Precision Acoustics’ manufactures high-quality co-planar membrane hydrophones which have been developed to satisfy the stringent requirements of MHz ultrasound measurements. The differential membrane hydrophone model is suited to the most demanding, wide bandwidth measurements situations but requires water with very low conductivity.
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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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Product
Acoustic Calibrator
CAL250
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The Larson Davis Model CAL250 is a battery operated precision microphone calibrator used for the calibration of sound level meters and other sound measurement equipment.
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Acoustic Wave Device
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Murata offers high-performance acoustic wave radio frequency (RF) devices including filters, duplexers, diplexers, resonators, and frequency control devices. This allows us to provide a wide range of acoustic wave-based RF devices in a one-stop service to all RF engineers.
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Product
FlowQuest Acoustic Current Profilers
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FlowQuest is a line of Acoustic Current Profilers manufactured by LinkQuest Inc., a company renown for its innovation, capability and product quality. The FlowQuest current profilers are ideal for measuring currents and flows in oceans, harbors, lakes and rivers. With its capability for significantly longer range, standard deepwater depth rating and seamless integration with third-party sensors and LinkQuest acoustic modems, the FlowQuest system is not just a current profiler. It also serves as a focal point for your underwater deployments.
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Product
Large Industrial/OEMs
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IAC Acoustics has supplied some of the world’s best brands with various kinds of acoustic testing facility. From computer components to large diesel engines and generators, we can supply a solution to provide you with a certified facility for carrying out acoustic measurements and tests. From supplying acoustic lining packages to a complete turnkey facility, we can provide a cost effective solution to your testing requirements.
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Product
Digital Multimeter
DMT-4010RMS
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Monacor International GmbH & Co.
*True RMS measurement method*Dust and water protection according to IP class 67 with covered measuring sockets*Auto ranging for faster measurements*4000 digit resolution*Additional bar display*Voltage measurement up to DC/˜ 1000 V*Current measurement up to DC/˜ 10 A*Frequency measurement up to 10 MHz*Resistance measurement up to 40 MΩ*Capacitance measurement up to 40 mF*Temperature measurement -20 °C to +760 °C*Acoustic continuity test*diode test*Data hold (measured value memory)*peak hold*Maximum and minimum value recording*LC display with switchable background lighting*Automatic shutdown*overload protection*Supplied with test leads and protective case
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Product
Audio Test
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Our Sound Tests will help you to intuitively benchmark your audio Equipment and loudspeakers E , your listening environment and room Acoustics A or your Hearing H without any other device required. In these tests, your ears will be your best judge.
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Product
Acoustic Emission Instrument
VPAC™II
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The VPAC™II is an acoustic emission instrument based on over 10 years of research. The VPAC™II can estimate the quantity of material leaking through the valve using the accompanying proprietary software. With hundreds of systems currently in use, the VPAC™II valve leak detector is the instrument of choice for through valve leak detection.
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Product
SoundLink Underwater Acoustic Modems
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With the innovative technologies, LinkQuest's modems have achieved significantly increased data rate (up to 38,400 baud), lower power consumption and unprecedented robustness. All of LinkQuest's modems perform at a bit error rate of less than 10 which is equivalent to the quality of wire line communication. LinkQuest's extensive line of underwater acoustic modems outperform any competing products in technical aspects for both near-vertical, horizontal and extreme horizontal underwater environments.
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Product
Testit
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The Teledyne Benthos Testit Hand Held Acoustic Tester enables in-air acoustic testing of all the Teledyne Benthos R-Series acoustic releases prior to deployment. The Testit is powered by six AA batteries and is lightweight and compact for hand held use. It is also splash-proof, enabling it to be exposed to marine environments. Using the Testit, any number of R-Series acoustic releases can be tested at sea or on shore without the need to set up and operate a deck box. The Testit includes a carry case with batteries and a manual.
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Product
Acoustical Generator (STIPA Reference)
TalkBox
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The TalkBox is an acoustic signal generator for speech intelligibility measurements in evacuation and announcement systems, as well as for level alignment of teleconference or other audio systems. It allows you to perform a complete end-to-end evaluation of the speech intelligibility STI from the talker’s microphone to the listener’s ears.
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Product
Dynamic High Pressure Sensors
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Columbia Research Laboratories
Columbia's line of Dynamic Pressure Sensors can also serve as Acoustic Sensors (Microphones). They are designed to measure fast pressure variations, surges and dynamic blasts. The Sensors vary from low cost, small size, and lightweight to High Pressure (to 10,000psi) units, with all-welded contructions for extreme ruggedness, making them excellent choices for a wide range of applications.
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Acoustics
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Chelsea Technologies specialises in the design of underwater transducer technology. With over 45 years’ experience, our comprehensive range of standard transducers are ideal for a wide range of applications from aquaculture to defence. Our in-house acoustics experts can also help with custom products and design projects.
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Product
Logger version 2-D electro-magnetic current meter
INFINITY-EM AEM-USB
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Infinity EM is an autonomously deployable EM (electro-magnetic) current meter with a data logger. Due to the principle, the instrument provides high accurate 2-D current measurements in even low scatter fields, where ADVs (Acoustic Doppler Velocimeter) has difficulties. The measurement range is wide from 0 to ± 500 cm s-1. The instrument design is compact (1.0kg in air). Infinity EM allows for current velocity measurements virtually anywhere.
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Acoustic Emission System
Pocket AE-2
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The Pocket AE-2 is a high performance, computerized, dual-channel Acoustic Emission (AE) system which is packed in a robust, portable handheld unit optimal for field use. The Pocket AE-2 offers all the performance, capabilities and features of larger, more expensive MISTRAS’ AE system (wide bandwidth, speed, AE features, sampling rates, waveform processing, audible AE) in a compact, battery-operated package.
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Product
Advanced Handheld Partial Discharge Detector
PDetector
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Power Monitoring and Diagnostic Technology Ltd.
The PDetector is an ideal device for On-Line Partial Discharge (OLPD) testing of MV and HV equipment which employs all 5 types of OLPD sensor technology: Ultra-High Frequency (UHF), Acoustic Emissions (AE), Ultrasonic, High Frequency Current Transformer (HFCT), and Transient Earth Voltage (TEV). The information from multiple sensors gives the PDetector the versatility to detect all types of PD in all types of substation apparatus. The exact type of PD activity can be determined effectively using multiple on-screen data spectrum analysis.
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Product
Acoustic Probe
AA-Ultrasonic
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The AA Ultrasonic acoustic probe is designed for use on air insulated terminations where a clear sound path between the electrically stressed insulation and the probe is present.
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Manikins for realistic simulation of the acoustic properties of a human
Head & Torso Simulators
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If you need to carry out realistic in-situ measurements of headphones, telephones or hearing aids, you need a Head and Torso Simulator such as the B&K ‘HATS’ – Type 4128D or GRAS’ Kemar to complete your test setup. These manikins have built-in ear and mouth simulators that provide a realistic reproduction of the acoustic properties of an average adult human head and torso. They are commonly used for tests on telephone handsets, headsets, audio conference devices, microphones, headphones, hearing aids and hearing protectors. Please contact your sales engineer or email sales@listeninc.com for more information.
