Acoustical References
Standard for calibrating sound level meters and sound measuring systems.
See Also: References, Reference Standards, Reference Antennas, Reference Decoders, Reference Jumpers, Reference Sources, Reference Transformers, Reference Transmitters, Frequency References, Solar Reference Cells
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Reference Meter
SB1300
Shenzhen Star Instrument Co., Ltd.
The SB1300 three-phase multi-function reference meter incorporates 32-bit floating point DSP, wide-range measuring and embedding industrial PC technologies. This model was the first approved by China National Institute of Metrology. Star Instrument has been granted the first manufacturing license for class 0.02 reference meters. Basic measuring range (phase voltage): 1V~480V, current measuring range: 1mA~120A; wide measuring range (phase voltage): 0.1V~1000V, current measuring range: 0.1mA~200A
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Reference Sources
A physical or digital document that you would refer to for more information about a topic.
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Three Phase Reference Standard Meter
Signals & Systems India Private Limited
The Three Phase Reference Standard Meter (TPRS-1107) is portable equipment from SANDS. The main objective of this device is to calibrate the errors in three-phase and single-phase energy meters i.e. the meter under test (MUT). The TPRS supports both static and electro-mechanical types of meters. It can also be used to compute the voltage, current, energy, power factor etc of the meter under test. It has an LCD display, an alphanumeric keypad that makes it easy for the user to operate the TPRS. It can be interfaced with the PC for data analysis. It has the capability of storing up to 8000 test results.
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TOFD Method of Acoustic Control
Time-of-flight diffraction method of acoustic control is a software and hardware suite used for material strength testing based on TOFD method of acoustic control.
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Acoustic Emission Instruments
The Acoustic Emission NDT technique is based on the detection and conversion of high frequency elastic waves into electrical signals.
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Reference Radiators / Comb Generators
The Spectrum Generator is a family member of the Schwarzbeck pulse generators, which are used as pulsestandard world wide. Whilst the latter one uses a bounce free relay contact to discharge a coaxial lineto the load resistor, it uses a special avalanche transistor instead of the relay contact.
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Acoustic Emission System
Pocket AE-2
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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Linear Acoustic
Audio over IP (AoIP) has been embraced by the radio side of broadcasting for many years where the myriad advantages of networked audio via the Livewire+ AES67 standard is well known. Now, AoIP is available for television audio thanks to Linear Acoustic AERO.soft™. The Linear Acoustic SDI xNode de-embeds two separate HD/SD-SDI inputs, converts it to up to 16 channels of Livewire+ AES67 audio, makes it available for processing, upmixing, and encoding in the brand-new AERO.soft Processing Engine, and then re-embeds the audio into two independent SDI outputs. This provides unmatched flexibility, scalability and channel density.
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Acoustic Calibrators
We offer a range of Class 1 and Class 2 acoustic calibrators for the field calibration of any make or model of sound level meters and noise dosimeters.
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Directional Acoustic Transponder (DAT)
The Benthos Directional Acoustic Transponder (DAT) is anextension to the Teledyne Benthos ATM-900 Series modem, which automatically estimates the azimuthal and vertical arrival angles of a message sent by a remote modem. The system is a modified ultra-short baseline (USBL) which uses a broadband component of a typical modem message to form estimates of arrival angle(s). While conventional USBL devices employ tonal signals, our appropriate processing of wide band signals provides far better combined range and arrival angle estimation, especially at low Signal to Noise Ratio (SNR). Our device offers a clear 360 degree field of view in azimuth, and an approximate vertical coverage spanning + 90º overhead to -50º below horizontal.
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Noise Control And Acoustical Consulting Services
Our acoustical consultants use the latest and most advanced noise prediction and modeling software, precision sound measurement equipment and detailed acoustical analysis that enable us to help our clients achieve their project's noise requirements and goals. Contact us before your noise challenges become noise pollution problems.
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Wireless Device Functional Test Reference Solution
The Keysight S8890A Wireless Device Functional Test Reference Solution provides an automation environment which is both simple to use, yet comprehensive and powerful. Based on the Test Automation Platform www.keysight.com/find/TAP, S8890A provides optional instrument driver/plug-ins offering simplified logically grouped control steps. These steps can be sequenced, looped and swept to provide powerful individual test cases or comprehensive sequences. Each driver/plug-in is provided with extensive starter sample test cases which can be modified by Keysight or the end user the UE to be tested. Plug-in options:
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Qseven® Reference Carrier Board
Q7-BASE
Qseven is a Computer-on-Module (COM) standard for small sized and highly integrated systems adopted by SGET. The Qseven concept is an off-the-shelf, multi-vendor, Computer-on-Module that integrates all the core components of a common PC and is mounted onto an application specific carrier board. Qseven modules have a standardized form factor of 70 mm x 70 mm or 40 mm x 70 mm and have specified pinouts based on the high-speed MXM connector, regardless of the vendor. The Qseven module provides the functional requirements for an embedded application, which include, but are not limited to, graphics, audio, mass storage, network and multiple USB ports. A single ruggedized 230 pin MXM connector provides the carrier board interface to carry all the I/O signals to and from the Qseven module. This MXM connector is a well-known and proven high-speed signal interface connector that is commonly used for -PCI Express graphics cards in notebooks.
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300nA NanoPower Voltage References
ISL21080
The ISL21080 analog voltage references feature low supply voltage operation at ultra-low 310nA typ, 1.5µA max operating current. Additionally, the ISL21080 family features guaranteed initial accuracy as low as ±0.2% and 50ppm/°C temperature coefficient.
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Acoustic Analysis
Includes cursor readout of dB bands, max & min lines, noise curve overlays, pink noise generator, and optional STC Transmission Loss.
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High-Speed, Fiber-Optic Reference Transmitters
Thorlabs' Reference Transmitters are designed for high-speed fiber optic test and measurement applications. They are fully-integrated and user-configurable solutions based on proven lithium niobate (LiNbO3) modulator technology driven by high-fidelity RF amplifiers.
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Reference plus Comparator or Amplifier
Analog Devices reference plus comparator or amplifier products combine the excellent initial accuracy and low overtemperature drift performance of single function voltage references with comparators, buffer amplifiers, and current sense amplifiers. These products offer compact solutions for a broad range of applications such as battery monitoring, threshold detectors, window comparators, auto power-off circuits, and low dropout (LDO) regulators.
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A Global Standard for Acoustic Absorption Measurements
Alpha Cabin
The Alpha Cabin has been especially designed for the measurement of acoustic absorption properties of materials and components used for the noise insulation of vehicles. The Alpha Cabin is significantly smaller than normal reverberation rooms and therefore ideally suited to use within limited space capacities. The acoustic absorption of the Alpha Cabin itself is also very low: Thanks to the high level of sound insulation, background noise in the frequency range of interest is kept to a minimum.
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AC Reference Generators
SR21
Computer Conversions Corporation
The SR Series are miniature, low cost AC reference generators designed to supply 26 or 115 volt excitation to synchros or resolvers in military and industrial control applications. They accept +/-15V DC and provide up to 5VA of transformer isolated output power. These converters are packaged in PC card mounting modules 2.6”x3.1”x1”H.
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Acoustic Load Shackle
ALS-2.0
The Acoustic Load Shackle is designed for subsea operations where load monitoring is required, either for short term operations lowering an item to the seabed or for longer periods monitoring dynamic loads.
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Acoustic Zooplankton Fish Profiler
The ASL Acoustic Zooplankton Fish Profiler™ (AZFP™) offers a new, economical way of obtaining reliable measures of marine environmental conditions in the water column. The AZFP™ can monitor the presence and abundance of zooplankton and fish within the water column by measuring acoustic backscatter returns at multiple ultrasonic frequencies. Other sonar targets realized from the sonar backscatter data include bubbles and suspended sediments.
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Integrated USBL Acoustic Tracking and Communication Systems
The TrackLink systems are the world's best selling USBL acoustic tracking systems with fully integrated high speed acoustic communication capability. Capitalizing on its benchmark Broadband Acoustic Spread Spectrum (BASS) technologies, LinkQuest provides the end users with solutions for underwater tracking and communication at sharply reduced cost and increased robustness. An extensive line of models are available to suit the users' specification and budget constraint.
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Reference Magnets And Zero Chambers
Reference Magnets with different magnetic field strenghts and dimensions. Available field strenghts ranging from 10mT to 1,4T. We deliver the Reference Magnets with a Factory Certificate. Zero Chambers are required to set zero of gaussmeters. We deliver two different types of Zero Chambers.
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Acoustic Microscope
AMI D9650
Specifically designed to serve as a general purpose tool for failure analysis, process development, material characterization and low volume production inspection, the capabilities of the D9650 are truly unmatched. Representing the latest in C-SAM acoustic micro imaging, the D9650 delivers the unrivaled accuracy and robustness that you would expect from Nordson Test & Inspection instruments, plus improved electronics and software that raises the performance level for laboratory acoustic microscopes.
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Acoustic Camera
SONASCREEN®
The handheld acoustic camera SONASCREEN generates acoustic images from both the audible and ultrasound frequency range. The device locates sound sources in real time and displays the results immediately on the screen. Furthermore, the camera provides audible feedback through industrial headphones. We make ultrasound audible and visible.
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23KHZ Reference Measurement Microphone
M23R
The M23R is a precision engineered 23kHz omnidirectional measurement microphone ideally suited for acoustical measurements including loudspeaker design and quality control, sound system setup and troubleshooting, room acoustics, or any application where an accurate free-field measurement microphone is required.
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Acoustic Emission Sensors
Acoustic wave (acoustic emission) sensors are the ceramic piezoelectric transducers converting the mechanical elastic acoustic waves generated in the material (e.g. elastic waves occur when a material cracks, wears, deforms, or corrodes) to electrical signals. The electrical signals are then amplified and filtered by a preamplifier and then transmitted to a special acoustic emission acquisition instrument for further data processing and analysis.
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Workstation For Acoustic & Vibration Engineering
imc WAVE 2022
imc WAVE is a modular, powerful software platform for noise and vibration analysis (NVH analysis). From noise investigations in road tests to structural analyses on the test bench and vibration tests on machines: with different imc WAVE analyzers, you can evaluate a wide range of applications without having to be an expert yourself. In this way, you can also easily and reliably obtain standard-compliant analysis from the fields of noise and sound power analysis, structure analysis as well as the evaluation of the analysis of vibrations and of rotating machines. imc WAVE guides you step by step through the settings, from device configuration to calibration and measurement. In the end, you evaluate your data professionally and then receive a report that is ready to print. The modular software specializes in the following topics.
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Acoustic Target Impact Localization System
ATILS
In peace time, for training purposes, artillery units conduct their frequent target practicing.Both the skills of the gunners and the forward observers need to be improved, their communication cycle to be shortened.Forward observing is a dangerous task during war time, causing a justification to find other ways to localize impacts and adjust fires.Furthermore, the sheer lack of a line of sight, because of topography and/or weather, also thrives the need for other solutions to determine the impact coordinates.
