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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AC Reference Modules
Reference Module
NAI offers a variety of AC reference modules that provide a drive capability to 5 VA. The units are transformer-isolated and operate over a frequency range from 47 Hz to 10 kHz. These modules are specifically designed for rugged defense, commercial aerospace, and industrial applications.
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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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Acoustic Transducer
RESON TC 3021
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The TC 3021 is our entry-level, universal 2MHz transducer and is ideal for high precision sound velocity measurements over short distances.
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Acoustic Imager
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Can be used for quick on-site testing of current transformers in metering installations. They are designed and manufactured to test transformers’ primary current, secondary current, and turns ratio and identifies phase type and polarity.
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Acoustic Microscope
AMI D9650
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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 Transducer
RESON TC 1037
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Originally designed for underwater telephone systems, the TC 1037 is a rugged directional transducer ideal for operating at low frequencies.
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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 (Acoustic Emission) Monitoring Solutions
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Qingcheng offers a variety of solutions to solve some essential difficulties and problems in some industrial fields.
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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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Acoustic Camera
SONASCREEN®
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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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Reference Magnets
Series MT
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The reasonably priced WUNTRONIC standard reference magnets offer the possibility in a simple way of being able to calibrate or to check magnet measuring instruments like Gauss Meter/Tesla Meter with the respectively accompanying probes in a defined magnetic field.
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Acoustic Camera
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Is a module based approach to acoustic camera that gives the user both portability and great resolution for a wide range of measurement situations.
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Reference Supplies
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Advanced Energy's Trek reference supplies offer both high temperature and time stability outputs. They can also be used as a secondary traceable standard.
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Acoustic Microscope
AMI P300
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The FastLine P300 Acoustic Microscope is specifically designed for accelerated throughput, semiautomated screening of microelectronic devices on the manufacturing floor.
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Acoustic Imaging Cameras
Si1 and Si2 Camera series
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Helps you significantly lower costs associated with mechanical bearing issues and partial discharge on electrical equipment. It also enables you to drastically reduce leaks in your facilities, cutting down expenses related to compressed air and gas leaks.
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Acoustic Imaging Solutions
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Visualize the unheard and the unseen with the power of fixed acoustic imaging solutions from Fluke Process Instruments. Fixed acoustic imaging enables users to detect, locate and visualize air and gas leaks or changes in sound signatures across their process and equipment in real-time before they become costly problems.
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Multi-Modulation Acoustic Telemetry System
MATS 3G
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A single solution for all underwater communication needs, MATS 3G is the underwater acoustic modem that leverages state-of-the-art Digital Signal Processing technology to ensure reliable, long-range communication.
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Reference Solutions
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As you seek solutions to evolving test challenges, Keysight Reference Solutions provide the right combination of hardware, software, and measurement expertise through programming examples highly optimized for specific applications. Reference Solutions show you how to get the most out of your test equipment, helping you achieve half the time to insight.
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Series Voltage References
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Analog Devices offers a broad line of series voltage references with low dropout, low power, and excellent line regulation. These devices are voltage references that are functionally similar to a three-terminal regulator. Some series voltage references are designed to also operate in shunt mode by biasing the output pin and leaving the input pin open circuit. Series mode voltage references have the advantage that they draw only load and quiescent current from the input supply.
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Master Reference Generator
Mentor
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Precision Time Protocol IEEE-1588 PTP grandmaster• Multiple video and audio formats in one box• Simultaneous 525/625 and HD Tri Level Sync outputs• Highly accurate GPS reference for synchronisation and timecode• Vector web-browser setup and monitoring tool• Redundant PSU option• Add upgrades and options without return to factory• Generates synchronised audio and video• Redundant units with changeover• 4K test pattern ready (future upgrade)
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Product
Reference Transmitter
81491A
Transmitter
Keysight's 81491A Reference Transmitter is designed to offer excellent eye quality for NRZ and PAM4 signals at baud-rates up to 32Gbaud and can serve as universal E/O converter. It comes in Multimode (MM) and Single-Mode (SM) flavors and includes internal lasers at 850nm (MM) or 1310&1550nm (SM). External optical input for usage with tunable laser sources is available for SM option. It is fully integrated into Keysight’s Optical Receiver Stress Test solutions to address test requirements of IEEE 802.3 10,40,100 and 400GBASE optical standards.
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Acoustic Calibrators
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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)
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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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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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Acoustic Emission Instruments
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The Acoustic Emission NDT technique is based on the detection and conversion of high frequency elastic waves into electrical signals.
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Acoustic System
Constellation
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In acoustics, one size does not fit all. Constellation offers an elegantly simple way for venues to transform architectural acoustics with a finger tap, affording a level of sonic flexibility never before possible.
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25µA Micropower Voltage References
ISL21070
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The ISL21070 voltage references are analog voltage references featuring low supply voltage operation at ultra-low 25µA max operating current. Additionally, the ISL21070 family features guaranteed initial accuracy as low as ±0.2% and 30ppm/°C temperature coefficient. These references are ideal for general purpose applications for performance at lower cost.
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Reference Magnets
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Very stable reference magnets for highly accurate in-situ validation of magnetic field sensors, teslameters and mappers. Three Component Reference Magnet. Magnetic fields available: 100mT. Easy and fast to use. Mechanical referencing and orthogonality of the magnetic field better than 0.1° in all 3-directions.
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Acoustic Calibrators
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When you're ready to take noise measurements, it's strongly recommended that you perform a field calibration using an Acoustic Calibrator. You should calibrate your sound meter before you start to measure, and then once you've finished you should perform a reference check against the calibrator and make note of any drift that has occured. You can find out more about performing Field Calibrators by reading this post and watching a short video.





























